Custom engraved acrylic base.

OKI-740     Cerussite Twins on Malachite after Azurite    Tsumcorp Mine, Tsumeb, Otikoyo Region, Namibia, Africa.  Ex. Nancy Collins Collection circ. 1970.  This fine specimen measures 6.5 x 6 x 4.8 cm overall and is composed of numerous twinned and untwined cerussites on a lush carpet of forest green malachite pseudomorphs after azurite.  The largest twin is 1.7 cm on edge.  The malachite pseudo are present in two generations: the first generation crystals are large, followed by the second generation, much smaller, deeper green pseudos which coat some of the surfaces of the first generation crystals.  On this matrix there is a large centrally placed twin with good symmetry and luster.  In addition are several small reticulated twins on the periphery.  They all stand off the malachite in high relief.  The cerussites are very translucent and have a waxy to silky luster.  There is no damage to the primary display face although some of the edge contacts are visible on the sides of the piece.  The backside has some mineralization, as well.  The specimens of malachite after azurite from this mine are known world over as classics.  I’ve sold and seen many dozens of these malachites after azurite, but the several of these I now have for sale are the only ones I’ve known of in combination with the cerussites.  Comes with a custom engraved acrylic base. Rare and desirable.  $2,200

The following specimens from Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut are the ones discussed in Joe Polityka's recent Springfield Show review in The Mineralogical Record, Nov.- Dec. 2010, p. 547.  I hope you enjoy them as much as I have enjoyed photographing and describing them.

RAI-006

RAI-006      Calcite and Quartz    Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut. This specimen is a plate of interesting calcites with selective face hematite coatings and a few hematite coated quartz crystals.  It measures 9.5 x 6 and is approximately 3 cm thick.  A crystal on the edge of the piece is damaged otherwise very nice.  175$

 

 

 

 

 

 

RAI-007

RAI-007     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic small cabinet specimen measuring 8.5 x 5.6 x 5 cm.  The piece is a perfect dome of several intergrown calcite balls which have fabulous, glassy, single and double terminated quartz crystals scattered about its surface.  This is truly an exceptional specimen for this quarry and it deserves serious attention.  It is sculptural and views fine from most any side.  I can only find one small quartz crystal missing on a lower edge which is only noticeable when viewed from that one side.  Very choice for anyone who likes calcite, quartz or East Coast specimens.  If I were purchasing one of these, it would likely be this one.  425$

 

 

 

 

 

 

RAI-008

RAI-008     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic specimen measuring 9 x 7 x 5 cm.  The specimen a mix of small calcites and fabulous, larger, glassy, single and double terminated quartz crystals to 3 cm each.  Tiny hematite balls give the quartz crystals wonderful definition so they don’t all blend together as do so many complex, glassy, quartz specimens.  This is truly an exceptional specimen for this quarry and is unlikely to be here for very long.  Damage free and views well from several positions.  450$

 

 

 

 

 

 

RAI-009

RAI-009     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic small cabinet specimen measuring 6.6 x 6.1 x 4 cm.  The piece is a dome of calcite which have fabulous, glassy, single and double terminated quartz crystals scattered about its surface as well as rather large calcites.  A quartz point is missing in the back and a calcite on very edge has a cleave, so not perfect but shows nice views in most cases and better than most from this rare find.  180$

 

 

 

 

 

 

RAI-010

RAI-010     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic small cabinet specimen measuring 8.4 x 5.1 x 3 cm.  It is composed of one complete calcite/ quartz ball and another partial one on matrix.  The quartz are single and double terminated and are up to 2 cm each.  Most of the hematite balls on the primary crystal are a nice red color.   Damage free and attractive.  90$

 

 

 

 

 

 

RAI-011

RAI-011     Quartz on Calcite with Quartz casts after Anhydrite    Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  This big, flashy specimen measures 10 x 9 x 6.2 cm.  Mixed in with the quartz are several small, thin plates of small quartz crystals which are actually pseudomorphs after anhydrite crystals.  There are probably four or five quartz points missing which has greatly reduced what would have been the price of this specimen. There are lots of pics here for you to determine if it is worthy of purchase….I wouldn’t have wasted my time here if I didn’t believe it was.  220$

 

 

 

 

 

 

RAI-012

RAI-012     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic small cabinet specimen measuring 7.5 x 5.3 x 5 cm.  The piece has a perfect dome of clear, beta-form quartz crystal sitting up high off a bed of white calcite crystals.  This is almost what I would describe as stalactitic.  The quartz are to 1 cm on edge and the piece is in fine condition.  This form of quartz is not very common at Roncari.  This is a great example of this style of crystallization.   175$

 

 

 

 

 

 

OKI-013

RAI-013     Quartz and Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic small cabinet specimen measuring 7.5 x 5.5 x 4 cm.  This is a rather unusual specimen with a thick coating of “Herkimer diamond” style quartz crystals covering one undulating side of the piece.  There are lots of tiny hematite balls in reds and browns as inclusions and on both the quartz and calcites.  The calcites are double terminated and to 2 cm each.  They have frosted surfaces which may be quartz overgrowths and stand out quite nicely from the quartz.  No damage.  150$

 

 

 

 

 

 

RAI-014

RAI-014    Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An aesthetic small cabinet specimen measuring 7.3 x 6 x 5 cm.  The piece is a perfect dome of several intergrown calcite balls which have fabulous, glassy, single and double terminated quartz crystals scattered about its surface.  It is sculptural and views fine from most any side except back.  Some quartz missing in a lower section and central point too.  The damage relegates it to the status of being an average example from an exceptional find.  95$

 

 

 

 

 

RAI-015

RAI-015     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  Nice quartz points in a cluster measuring 8.5 x 7 x 5 cm.  A couple quartz points are missing but the specimen still displays wonderfully.  Attractive with the hematite coatings and inclusions.  85$

 

 

 

 

 

 

 

RAI-016

RAI-016     Quartz on Calcite     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  A really fine quartz specimen measuring 8.5 x 6 x 5 cm.  The hematite balls are inclusions and surface coatings.  On quartz point missing which is noticeable.  Still, an attractive specimen deserving of a home in someone’s collection 60$

 

 

 

 

 

 

 

OKH-388

OKH-388    Andradite    Cornwall Iron Mines, Cornwall, Lebanon, Pennsylvania.   Ex. Dr. Steve Chamberlain Collection.   Purchased in 1961, this black garnet is an unusual find.  The crystal is euhedral, floater, with poor form but fully developed, stepped faces on all sides.  No damage.  The luster is good and it is an unusual species for this prolific and historic mining area.  1.5 cm diameter.  Mounted in a perky box.  35$

 

 

 

 

 

 

OKH-389

OKH-389    Rutile    Parkesburg, Chester Co., Pennsylvania.   Ex. Dr. Steve Chamberlain Collection.   A fine east coast classic measuring 2.2 x 1.5 x 1.4 cm.  This twinned crystal is a deep red color and only has one tiny point of attachment.  No damage and moderate luster.  A beautiful example of this uncommon material.  Location, location, location…  125$

 

 

 

 

 

 

OKH-386

OKH-386    Descloizite    S.W. Chester County Mine, Phoenixville, Chester Co., Pennsylvania.   Ex. Dr. Steve Chamberlain Collection.   Collected by Steve in 1963 and ID done by Dr. David Lapham.  The dark brown/ black crystals are along one edge of the matrix and only reach about a millimeter each.  The specimen is a 3 x 2 cm plate of brown rock.  This is obviously the type of specimen only of interest to the specialist in PA, Chester Co. or some other narrow range of interest.  35$

 

 

 

 

 

 

OKH-387

OKH-387    Millerite     RESERVED    Gap Mine, Nickel Mines, Lancaster Co., Pennsylvania.   Ex. Dr. Steve Chamberlain Collection.  Botryoidal groupings of gold colored millerite in a small stack measuring 1.9 1 1.2 x .6 cm.  Uncommon.  15$

 

 

 

 

 

 

OKH-390

OKH-390    Beryl    Gillette Quarry, Haddam Neck, Connecticut.   Ex. Dr. Steve Chamberlain Collection.   This light pink beryl measures approximately 1.3 x 1 x .8 cm and is in a specimen with overall dimensions of 2.4 x 1.8 x 1.5 cm.  The crystal is nicely formed with no damage even though it was once likely fully encased in quartz.  Attractive example of an uncommon color for the species and at a great price.  40$

 

 

 

 

 

 

OKH-391

OKH-391    Grossular    Rubberoid Asbestos Mine, Eden Mills, Vermont.   Ex. Dr. Steve Chamberlain Collection.   A small example of this very desirable material.  The piece is a group of several gemmy crystals with moderate internal fracturing.  The color is exceptional and they are in good condition with contacts being isolated to the back and bottom.  1.1 x 1.1 x .9 cm overall.  Sorry for the poor quality pics.   25$

 

 

 

 

 

 

OKH-392

OKH-392    Fluorite    T & G Prospect, Grant Co, New Mexico.   Ex. Dr. Steve Chamberlain Collection.   This nice display piece has fluorite octahedral to 1.5 cm on edge.  They have light purple/ pink cores and clear frosted surfaces.  Minor matrix and no damage.  The specimen measures 3.4 x 2.5 x 1.7 cm.  45$

 

 

 

 

 

 

OKH-393

OKH-393    Andradite    New Idria District, San Benito Co, California.   Ex. Dr. Steve Chamberlain Collection.  Previously Ward’s.   3 x 2 x 1.4 cm piece with black garnets to 1 cm each.  Nice contrast, exceptional luster and crisp form.  Not uncommon material but an uncommonly nice TN specimen for the locale.  25$

 

 

 

 

 

 

OKH-394     Vesuvianite    Butte Montana.   Ex. Dr. Steve Chamberlain Collection.   This single crystal is 1.7 cm on edge (2.5 cm across) and appears to be a floater.  It is mounted in a perky box so I can not get a complete view of the one termination, but it appears to be there and damage free.  The crystal’s surface is naturally etched in some areas creating an unusual and interesting surface texture.  The luster us good and the overall form of the single crystal is very nice.  A wonderful Montana specimen and a find for the Butte collector.  80$

 

 

 

 

 

 

OKH-395

OKH-395     Talc pseudo. after Scapolite on Hematite pseudo. after Magnetite    Moab, Grant Co., Utah.   Ex. Dr. Steve Chamberlain Collection.  This is one of the most unusual TN specimens I’ve ever offered.  It is composed of an unknown species of scapolite crystal of outstanding form  that has been replaced by talc.  It is pure black and has an amazing luster for a talc pseudomorph.  When you handle it you would swear it was a small chunk of black soap.  The crystal sits smartly on a matrix of hematite after magnetite.  Some contact to back but really a damage free piece with fine aesthetics.  I have never seen one of these before and I am very impressed… so what if it is black.  Far better in hand.  It is simply an amazing piece which I am sure will be appreciated by someone.  395$

 

 

 

 

 

 

OKH-396		Back

OKH-396    Quartz and Hematite     Goose Green Mine, Frizington, England.   Ex. Dr. Steve Chamberlain Collection.   A single large crystal on hematite blades with minor white calcite.  Crystal is smoky and very transparent (you can see the hematite and calcite included below).  Minor rubs and a concoidal ding on edge of crystal.  3.2 x 2.7 x 1.6 cm. 35$q

 

 

 

 

 

 

OKH-397

OKH-397    Beryl    Pulsifer Quarry, Mt. Apatite, Auburn, Maine.   Ex. Dr. Steve Chamberlain Collection.   Light green crystal with gem areas.  Overall moderately included.  Fine luster and single termination.  Damage free.  2 x 1.5 x 1 cm.  Excellent quality for this locality.  60$

 

 

 

 

 

 

OKH-341

OKH-341     Vesuvianite    Jeffrey Mine, Asbestos, Quebec, Canada.   Ex. Dr. Steve Chamberlain Collection.   Single crystal measuring 1.3 x 1 x .7 cm.  Minor contact from another crystal but no damage.  Minor accessories.  20$

 

 

 

 

 

 

OKH-399

OKH-399    Serandite    De-Mix Quarry, Mt. St-Hilaire, Quebec, Canada.   Ex. Dr. Steve Chamberlain Collection.  Previous Canadian Museum of Nature.   A fine cluster of pink, bladed serandite crystals to 1.3 cm each in a radiating cluster measuring 2.9 x 2.3 x 1.6 cm.  It looks to be pseudomorphing into some brown, low luster species.  Interesting piece.  75$

 

 

 

 

 

 

OKH-398	Back?	Top down view

OKH-398    Microcline    RESERVED   Bielke Pit, Rib Mountain, Marathon Co., Wisconsin.   Ex. Dr. Steve Chamberlain Collection.   Here is an uncommon example of a common species.  Seldom are these available due to the field collectors keeping them for their own collections.  This floater (maybe minor contact on back) is a cluster dominated by a large twin (Carlsbad?) which stands up vertically out of some smaller crystals that make up its base.  No damage and the cluster just barely fits in a perky box.  3.2 x 3.1 x 3.1 cm.  A very fine example which views well from any direction.  70$

 

 

 

 

 

 

OKH-400

OKH-400    Microcline    Bielke Pit, Rib Mountain, Marathon Co., Wisconsin.   Ex. Dr. Steve Chamberlain Collection.   Here is an uncommon example of a common species.  Seldom are these available due to the field collectors keeping them for their own collections. Here is an uncommon example of a common species.  Seldom are these available due to the field collectors keeping them for their own collections. This crystal is a single measuring 2.7 x 2.2 x 1.7 cm.  Nice luster and form.  25$

 

 

 

 

 

 

OKH-401

OKH-401    Quartz pseudomorphs after Mica     Powers Farm, Pierrepont, New York.  Collected by Michael Walter, summer 2009.  These specimens represent a one time find for the locale and the only known examples of this strange mineral substitution.  The replacement occurred after the book of mica began to expand and as a result each plate of the mica is now a solid sliver of gray quartz.  Not attractive by any means but so unusual it commands attention (ref Rochester Mineralogical Symposium technical session, 2009).  Only a handful of these have been offered for sale and there are not going to be any more found from all current indications.  This on is composed of two books and measures in total, 3 x 2 x 1.1 cm.  Small base contact and no damage.  50$

 

 

 

 

 

 

OKH-402

OKH-402    Diopside with Titanite and Albite (var. Antiperthite)     Rose Road Wollastonite Occurrence, Pitcairn, New York.  Collected by Michael Walter, summer 2006.  This is a rare offering because specimens from St. Lawrence County that are this nice are almost always added to my own collection.  I, however, already have several great TN specimens from this locale and do not gravitate toward this size of specimen in the first place.  So, this will be an opportunity for someone to add one of the best TN specimens ever found from this interesting site into their own collection.  The specimen is a floater with no attachments of damage of any kind.  It measures 3.5 x 2.1 x 2 cm overall and is dominated by a single deep green, double terminated diopside of outstanding form and the highest of luster.  Attached to it are several small white albites and on the primary display face a rich brown, fully terminated, glossy titanite crystal.  There is minor calcite attached to the backside.  The piece was found in the Lunch Break Pocket, described in my book and, again, is one of the finest TN specimens recovered from the site in its 100+++ year history.  It was naturally weathered from within massive calcite and was found loose in the opening.  220$

 

 

 

 

 

 

 

RAI-042

RAI-042     Quartz on Calcite      Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  An attractive specimen with damage free quartz to 1.8 cm each on calcite.  It measures 4.5 x 3.5 x 2.3 cm.  Beautiful red and brown hematite balls on surface and as inclusions.  Really nice example here.  45$

 

 

 

 

 

 

RAI-040

RAI-040     Quartz on Calcite Stalactites      Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  A stunning specimen composed of numerous calcite stalactites with well formed attached quartz.  It measures 5 x 3 x 2.2 cm and is damage free.  A few of the stalactites were once attached to others or matrix.  If you like really cute miniatures, this could be for you.  60$

 

 

 

 

 

 

RAI-044

RAI-044     Phantomed Calcite Scepter     Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  Truly rare material for this unusual find.  What an unusual calcite.  Selective face phantoms with overriding differential growth.  Only one edge attachment which shows as an edge cleave.  Once attached to an anhydrite.  Interesting and difficult to describe or fully appreciate unless in hand.  125$

 

 

 

 

 

 

RAI-045

RAI-045     Quartz       Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut.  A nice plate of damage free crystals measuring 5.5 x 3.2 x 2.1 cm.  Attractive with minor hematite balls and inclusions.  30$

 

 

 

 

 

OKI-671

OKI-671    Fluorite and Sphalerite      Excavation for Feeder Canal, Queenston-Chippewa Power Plant, (Montrose Rock Dump), Niagara Falls, Ontario, Canada.  Ex. Dr. Steve Chamberlain collection, Harry Maines Collector, 1984.  This excavation into the Lockport Dolostone resulted in a small number of fine specimens being produced in the mid-1980s.  Until now, I have never seen one for sale.  Field collectors tended to keep all their finds.  With the latest purchase from Steve’s collection nine of these specimens came into my possession.  With the exception of the unique calcites the material is almost indistinguishable from the specimens from the Penfield and Walworth quarries (also, in the Lockport formation).  To say this material is rare is the understatement of the decade!  This specimen is a cabinet sized piece measuring 8 x 6.5 x 6.3 cm.  It is half of a small vug with several clear fluorites, to 1.2 cm each, clustered together on one edge.  Numerous other very tiny fluorites and gemmy sphalerites dot other areas of the opening as well.  There are some minor hydrocarbon coatings, which of course, could be removed easily.  The piece sits upright on a sawn base.  The back is sawn off, too.  Great views from front and side.  Crystals are damage free and easy to view.  Small vug with fluorites also on one side of this specimen.  Very nice piece.  195$

 

 

 

 

 

OKI-672

OKI-672    Fluorite and Sphalerite      Excavation for Feeder Canal, Queenston-Chippewa Power Plant, (Montrose Rock Dump), Niagara Falls, Ontario, Canada.  Ex. Dr. Steve Chamberlain collection, Harry Maines Collector, 1985.  This excavation into the Lockport Dolostone resulted in a small number of fine specimens being produced in the mid-1980s.  Until now, I have never seen one for sale.  Field collectors tended to keep all their finds.  With the latest purchase from Steve’s collection nine of these specimens came into my possession.  With the exception of the unique calcites the material is almost indistinguishable from the specimens from the Penfield and Walworth quarries (also, in the Lockport formation).  To say this material is rare is the understatement of the decade!  This specimen is a cabinet sized piece measuring 9.6 x 8.5 x 4.5 cm overall.  Sawn base and small section of back sawn off.  Numerous fluorites to 2.2 cm on edge each fill the opening.  Two colors present, blue and clear.  A fine display of crystals on a thin druze of dolomite crystals.  Small gemmy sphalerites, as well. Two biggest crystals have damage (corner cleaves, one each) which are noticeable and greatly reduce the price on this specimen.  Still, all in all, an important specimen which draws attention.  195$

 

 

 

 

 

OKI-673

OKI-673    Sphalerite      Excavation for Feeder Canal, Queenston-Chippewa Power Plant, (Montrose Rock Dump), Niagara Falls, Ontario, Canada.  Ex. Dr. Steve Chamberlain collection.  This excavation into the Lockport Dolostone resulted in a small number of fine specimens being produced in the mid-1980s.  Until now, I have never seen one for sale.  Field collectors tended to keep all their finds.  With the latest purchase from Steve’s collection nine of these specimens came into my possession.  With the exception of the unique calcites the material is almost indistinguishable from the specimens from the Penfield and Walworth quarries (also, in the Lockport formation).  To say this material is rare is the understatement of the decade!  This one measures 4.5 x 3 x 2.8 cm and is just a representative specimen of the gemmy sphalerite crystals.  The crystals are individual and in a small cluster (cluster measures approx. .5 cm).  No damage.  30$

 

 

 

 

 

 

OKI-674

OKI-674    Fluorite and Calcite      Excavation for Feeder Canal, Queenston-Chippewa Power Plant, (Montrose Rock Dump), Niagara Falls, Ontario, Canada.  Ex. Dr. Steve Chamberlain collection, Prev. Alex Hamilton.  Rochester Mineralogical Symposium auction label.  This excavation into the Lockport Dolostone resulted in a small number of fine specimens being produced in the mid-1980s.  Until now, I have never seen one for sale.  Field collectors tended to keep all their finds.  With the latest purchase from Steve’s collection nine of these specimens came into my possession.  With the exception of the unique calcites the material is almost indistinguishable from the specimens from the Penfield and Walworth quarries (also, in the Lockport formation).  To say this material is rare is the understatement of the decade!  This specimen is a small cabinet specimen that measures 7.8 x 5 x 4.5 cm.  Mostly yellow calcites but one edge is a light purple fluorite measuring approx. .8 cm on edge.  A tiny chip on one edge can be noted but is tough to see unless 10x magnification is used.  The fluorite is so gemmy it may not even get noticed, at first.  A very nice example.  70$

 

 

 

 

 

 

OKI-675

OKI-675    Fluorite and Sphalerite      Excavation for Feeder Canal, Queenston-Chippewa Power Plant, (Montrose Rock Dump), Niagara Falls, Ontario, Canada.  Ex. Dr. Steve Chamberlain collection, Harry Maines Collector, 1984.  This excavation into the Lockport Dolostone resulted in a small number of fine specimens being produced in the mid-1980s.  Until now, I have never seen one for sale.  Field collectors tended to keep all their finds.  With the latest purchase from Steve’s collection nine of these specimens came into my possession.  With the exception of the unique calcites the material is almost indistinguishable from the specimens from the Penfield and Walworth quarries (also, in the Lockport formation).  To say this material is rare is the understatement of the decade!  This specimen is a small cabinet sized piece measuring 9 x 6.3 x 4 cm.  It is half of a small vug with a clear to slightly purple fluorite, 1.1 cm on edge.  An unusually gemmy fluorite.  Numerous other very tiny fluorites and gemmy sphalerites dot other areas of the opening as well.  The piece sits upright on a sawn base.  One edge/ back is sawn off, too.  Great views from front and side.  Crystals are damage free and easy to view.  Nice piece.  145$

 

 

 

 

 

 

OKI-676

OKI-676    Fluorite and Sphalerite      Excavation for Feeder Canal, Queenston-Chippewa Power Plant, (Montrose Rock Dump), Niagara Falls, Ontario, Canada.  Ex. Dr. Steve Chamberlain collection, Harry Maines Collector, 1985.  This excavation into the Lockport Dolostone resulted in a small number of fine specimens being produced in the mid-1980s.  Until now, I have never seen one for sale.  Field collectors tended to keep all their finds.  With the latest purchase from Steve’s collection nine of these specimens came into my possession.  With the exception of the unique calcites the material is almost indistinguishable from the specimens from the Penfield and Walworth quarries (also, in the Lockport formation).  To say this material is rare is the understatement of the decade!  This specimen is a 9.5 x 6 x 6 cm cabinet sized piece.  It is half of a small vug with a slightly purple fluorite cube, approx. 1.5 cm on edge.  An unusually gemmy fluorite.  There are a couple other clear fluorites and very tiny sphalerites present, as well.  Small yellow calcites are isolated to edge opposite the major fluorite.  The piece sits upright on a sawn base.  One edge/ back is sawn off, too.  Great views from front and side.  Crystals are damage free.  Nice piece.  225$

 

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