OKF-560		Back
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OKF-560    Fluorite on Quartz     Xie Fan Mine, Jianxi Prov., China.  I don’t tend to carry a whole lot of specimens which I would consider to be the best of their kind.  This piece however is the best of a find that came out of China two years ago and has yet to be topped.  I have seen a few dozen chunks of fluorite and a few good miniatures from this find.  Also, I own another, bigger, specimen from this find but it is not as displayable as this one.  Specimens from this limited find seem to almost always have damage, too.  This specimen measures 10.6 x 7.5 x 6 cm with cuboctahedral fluorites to 5 cm in diameter on milky quartz crystals to 5.8 cm in length.  The entire specimen is a floater which was attached to other crystallized rock but has since separated and regrown crystal faces on those broken surfaces.  The fluorites are a light sea green color and have interesting inclusions totally unique to this find.  Inside the crystals on a lower level (earlier crystal surfaces) there are several forms of inclusions.  The white spots could be anything, most likely tiny calcites or dolomites.  The brown dendritic inclusions however are more complex.  No analysis of these is known to me, but I believe they are branching groups of pyrite crystals which in some cases have altered to goethite on their ends (which were likely once exposed to oxygen).  The backsides of the fluorites are stepped in growth while the fronts are very clean.  Most surfaces look slightly etched (frosted) but this is an overgrowth of cubic crystal faces.  There is no damage to this exceptional display piece.  This is a world class fluorite specimen form a find which appears to be exhausted.   2,900$

OKF-561		Back?

OKF-561     Barite and Fluorite    Berbes, Asturas, Spain.  Ex. Bob Borofsky collection.  This large piece dominated by barite blades measures 11.5 x 9 x 6 cm overall and has barites to well over 4 cm.  The barites are a cream/ white color and typical in all respects with barites from this classic European locale.  The fluorites are small gem crystals to 1 cm on edge.  They are a light purple on the backside of the specimen and clear to a VERY light purple on the front side of the piece.  It is a very displayable specimen with some missing barite blades which look to have slightly regrown surfaces.  A showy specimen with fluorites more lustrous than normal for Berbes.  200$

 

 

 

 

 

OKF-562	Back?

OKF-562    Tremolite    RESERVED    Hardwood Lake, Ontario, Canada.  Ex Dr. Steve Chamberlain collection, previously in the George Robinson, Sr. collection, #11!  An old specimen which I will probably spend more time describing than any tremolite specimen I have ever owned.  This may be the finest small cabinet specimen of this common mineral which I have ever owned.  The crystals are large ( to over 5 cm each), and beautifully formed.  They are tabular in nature, mildly translucent and highly striated.  Most are double terminated with one termination being sharp while its opposing termination is somewhat crude or fibrous.  The luster is outstanding and there is no real area of contact which I can see (so I assume this is a floater).  There is no damage to any of the crystals and the specimen displays great…it does not stand up on its own, however.  There is a single lone calcite crystal on the back, center of the specimen.  The specimen shows me what a really great tremolite piece looks like as it is magnificent in every regard.  A fine piece with an outstanding provenance.  225$

 

 

 

 

 

OKF-563

OKF-563    Pyrite    Rensselaer Quarry, Pleasant Ridge, Jasper Co., Indiana.  Ex Dr. Steve Chamberlain collection.  A 5.2 cm, stalactitic pyrite composed of blocky crystals to 3 cm each.  Moderate luster with a small piece of the termination to the stalactite missing.  Nice piece.  80$ 

 

 

 

 

 

OKF-564

OKF-564    Pyrite    Rensselaer Quarry, Pleasant Ridge, Jasper Co., Indiana.  Ex Dr. Steve Chamberlain collection.  A 5 cm, pair of stalactitic pyrites composed of blocky crystals to 1.2 cm each.  Moderate luster, free of damage and very aesthetic.  Nice piece.  90$ 

 

 

 

 

 

OKF-565

OKF-565    Dolomite Twin   Azcarate Quarry, Egui, Esteribar, Navarra, Spain.  Ex Dr. Steve Chamberlain collection.  This is such an impressive dolomite that Steve thought it had to be a mislabeled calcite specimen in his collection!  A quick acid test confirmed that this is just one super impressive dolomite from the locality which can boast about having the very best dolomite crystals in the world.  This is a huge example measuring 8.5 x 8 x 6 cm.  This twin has no matrix and a rather small contact area (3 cm) for its size.  The crystals are transparent to a considerable depth but highly translucent is the best description for the entire piece.  There are a couple of tiny cleave/ chips but none are distracting or seriously impact the importance of the specimen.  This is certainly the best dolomite specimen I have ever owned and one of the top three or four which I have seen.  Dolomite crystals this good make all the rest look exceedingly bad!  900$

 

 

 

 

 

OKF-566

OKF-566    Millerite in Geode    Hall’s Gap, Kentucky.  Ex Dr. Steve Chamberlain collection, prev. Donald Briggs collection.  Scads of millerite needles within a 3.2 cm long by 2.2 cm wide geode.  They show up well on the quartz.  Specimen is mounted in a miniature perky box and will be shipped this way to help preserve the specimen. An excellent example from this now closed locale.  95$

 

 

 

 

 

OKF-567

OKF-567    Millerite in Geode    Hall’s Gap, Kentucky.  Ex Dr. Steve Chamberlain collection, prev. Donald Briggs collection.  Scads of millerite needles within a 3.7 cm long by 3.5 cm wide geode.  They show up well on the quartz.  Specimen is mounted in a miniature perky box and will be shipped this way to help preserve the specimen. An excellent example from this now closed locale.  95$

 

 

 

 

 

OKF-568

OKF-568    Corundum (Ruby)    Waterside, Zoutspansberg District, Limpopo Prov., South Africa.  Ex Dr. Steve Chamberlain collection, prev. Ward’s.  This is an attractive, tapered, crystal measuring 5.3 x 4 x 2.9 cm in its maximum dimensions.  The surface is lightly coated by mica crystals.  Translucent to opaque and a light reddish purple color.  An unusual location for a ruby specimen.  Nice.  50$

 

 

 

 

 

OKF-569

OKF-569     Quartz and Fluorite    Berbes, Asturas, Spain.  Ex. Bob Borofsky collection.  This nice specimen is like a quartz/ fluorite hedgehog.  It is highly domical in form and constructed from sharply formed quartz and fluorite crystals.  Fluorites are a rich purple color, phantomed and slightly modified by dodecahedrons.  The only visible damage I can find is one tiny quartz ding and a small cleave off one of the fluorites on the backside.  A fantastic displayable specimen which sits nicely and is from a classic European locality.  180$

 

 

 

 

 

OKF-430

OKF-430    Millerite in Geode    Hall’s Gap, Kentucky.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  Now a closed location, the millerites from Hall’s Gap are becoming more difficult to find for sale.  This geode measures 3.2 cm in diameter and has at least a half dozen fine golden millerite crystals on quartz to 1.5 cm each straddling the void.  They are of the highest luster and the piece is damage free.  The crystals are easy to see and aesthetic.  75$

 

 

 

 

 

OKF-431

OKF-431    Garnet (var. Hessonite)    RESERVED    Jeffery Mine, Asbestos, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  This piece displays a single 1.2 cm, damage free, gem garnet on matrix.  Overall size is 2.9 cm in diameter.  Attractively mounted in a perky box.  30$

 

 

 

 

 

OKF-432

OKF-432    Chabazite    Centerville, Virginia.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.   Bright golden yellow balls of chabazite are scattered on various levels of this thumbnail specimen.  3 x 2.8 x 2.6 cm overall.  Good luster and aesthetics.  28$

 

 

 

 

 

OKF-433

OKF-433    Ball Mica    RESERVED   Chandler Mine, Raymond, New Hampshire.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  Usually these specimens are much larger…this thumbnail sized piece is unusual for its small size at 2.5 cm overall with a mica ball 1.3 cm in diameter.  Displayable, damage free, high luster specimen mounted in a perky box.  20$

 

 

 

 

 

OKF-434

OKF-434    Epidote    Alchuri, Pakistan.   A 3 cm spray of deep green, high luster, mildly translucent crystals mounted in a perky box.  Minor chips on back of specimen.  Nice views front and sides.  A great example for this low price.  35$

 

 

 

 

 

OKF-435

OKF-435    Dioptase    SW Africa.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  Bright green, high luster, dioptase crystals on brown dolomite in a 3.4 x 3 x 2 cm specimen.  One tiny spot with a couple of crystals rubbed off on one side.  Mounted in a perky box.  20$

 

 

 

 

 

OKF-436

OKF-436    Boleite    Amelia Mine, Baja, California.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  A beautiful little .5 cm floater crystal of this rare mineral mounted on a post in a perky box.  Deep blue and of the highest luster for the species.  Nicely priced!  35$

 

 

 

 

 

OKF-437

OKF-437    Garnet (var. Hessonite)    RESERVED    Jeffery Mine, Asbestos, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  This piece displays a single three, damage free, gem garnets on matrix.  Overall size is 3 cm in diameter with garnets to .8 cm each.  These brown crystals are highly striated, mirror like in their luster and attractively mounted in a perky box.  30$

 

 

 

 

 

OKF-438

OKF-438    Tourmaline with minor Quartz    RESERVED   Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  These blue, translucent crystals measure up to 3.8 cm with the overall size of the piece being 3.8 x 2.4 x 1.6 cm.  The crystals on the primary display face are all well terminated, damage free and of high luster.  The backing is crystallized tourmaline, too and crystallized on the back as well.  That part of the piece is only crudely terminated.  Nice displayable specimen.  25$

 

 

 

 

 

OKF-439

OKF-439    Pyromorphite on Barite    Les Farge, France.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  Classic European material comprising this aesthetic thumbnail specimen which measures 2.7 x 2.4 x 1.8 cm overall.  Light green pyros to .5 cm each sit up high on a barite matrix (mounted in a perky box). 20$

 

 

 

 

 

OKF-440

OKF-440    Datolite with Quartz    Bor Quarry, Dal’negorsk, Russia.   Show 3.3 x 3 x 3 cm cluster of crystals.  A domical grouping of clear, high luster crystals to 1.9 cm each.  Some inclusions help give the specimen more character.  One crystal missing from one side otherwise in fine condition.  Views well from all angles and barely fits in a thumbnail perky box.  25$

 

 

 

 

 

OKF-441

OKF-441    Amethyst on Quartz.    Jefferson Co., Montana.  Ex. Dr. Steve Chamberlain Collection.  Prev. Donald Briggs collection.  This 3.3 cm wide piece displays two well formed amethyst crystals on the side of a smoky, lower luster quartz crystal.  The amethyst stick out to the sides like the ears on Mickey Mouse’s head.  Damage free and fully crystallized on all sides.  Attractively mounted in a perky box.  25$

 

 

 

 

 

OKF-442

OKF-442    Rhodochrosite and Pyrite    Sweet Home Mine, Silverton, Colorado.  Ex. Nancy Collins collection.  A great little specimen measuring 1.3 cm on its longest edge.  Mainly composed of a floater rhomb with a pyrite imbedded in its base.  One edge has a thin cleave which exposes the gem core (the cleave is far too thin to measure…maybe a couple hundredths of a millimeter thick.  Far, far thinner than a piece of paper).  A very lightly frosted surface makes the crystal look translucent on first inspection but it is actually transparent and a bright red color.  A great thumbnail specimen in all regards.  195$

 

 

 

 

 

OKF-443

OKF-443    Thorianite    RESERVED    Betroka, Madagascar.  Ex. Nancy Collins collection.  A perfect, damage free floater which measures 1 cm on edge (almost a cube).  It is of good luster and has an attractive surface.  Very nice for this species.  50$

 

 

 

 

 

OKF-444

OKF-444    Malachite pseudo. after Azurite and Azurite    Tsumeb, SW, Africa.  Ex. Nancy Collins collection.   2.3 cm parallel growth group of crystals with the largest being partially double terminated.  Almost complete replacement by malachite but a small amount of azurite shows through on the back of the specimen.  Damage free and what also appears to be minor white calcite in a few places.  80$

 

 

 

 

 

OKF-445

OKF-445    Wulfenite    Los Lamentos, Mexico.  Ex. Nancy Collins collection.  2.4 cm single crystal which is root beer brown, double terminated and hoppered in form (hollow).  An uncommon form and color.  It is translucent and has a nice waxy luster.  There are several small double terminated crystals at its base.  Damage free.  60$

 

 

 

 

 

OKF-505

OKF-505     Natrolite and Polylithionite    De-Mix Quarry, Mt. St-Hilaire, Quebec, Canada.    Ex. Dr. Steve Chamberlain collection.  Dr. Steve Chamberlain collector, 1980.  A 2.8 x 2.5 x 1.4 cm plate of crystals to 1.2 cm each.  This plate is a floater which has one small crystal missing (only visible with magnification) and no visible damage.  The crystals are complex and of good luster.  A fine, yet not expensive example.   35$

 

 

 

 

 

OKF-506
This represents the true color of the specimen.

OKF-506    Fluorite and Unknown on Quartz     Lower Sill, Francon Quarry, Montreal, Quebec, Canada.  Ex. Dr. Steve Chamberlain collection.  Dr. Steve Chamberlain collector, 1977.  This specimen is a killer for the locale.  3.3 x 3.2 x 1.7 cm overall with large (for here) parallel growth quartz crystals coated, in part, by purple fluorite cubes and an unknown mineral (likely pyrite but it could be marcasite).  No damage and mounted on a small toothpick for display in a perky box.  Very high quality for this locale.  175$

 

 

 

 

 

OKF-507

OKF-507    Weloganite and Dresserite      Francon Quarry, Montreal, Quebec, Canada.  Ex. Dr. Steve Chamberlain collection.  Dr. Steve Chamberlain collector, 1976.  A superb, damage free thumbnail specimen of these rare mineral in an aesthetic display.  The best weloganite measures .9 cm and is an attractive barrel shape and yellow color.  The other weloganites have flat terminations so sit lower and form the matrix of the specimen.  2.2 x 1.5 x 1.5 cm.  Tiny white balls of dresserite are sprinkled on top of the weloganites for good measure.  Rare minerals from a closed site in an attractive display.  This one has it all.    400$

 

 

 

 

 

OKF-508

OKF-508    Weloganite, Quartz and Strontianite       RESERVED    Francon Quarry, Montreal, Quebec, Canada.  Ex. Dr. Steve Chamberlain collection.  Dr. Bill Dossert, 1982.  Killer specimen with small double terminated quartz crystals partially coating a beautifully formed and terminated weloganite measuring 2 cm.  The base must have been barely attached to matrix.  One half of the strontianite ball perched on the top of the crystal is missing (only visible under close inspection from the back, otherwise the specimen is very clean.  Displays great!  350$

 

 

 

 

 

OKF-509

OKF-509    Pyrite    Cornwall Iron Mines, Cornwall, Lebanon Co., PA.  Ex. Dr. Steve Chamberlain collection.  Prev. Byron Brookmyer, 1980.   I am at an absolute loss to try and describe the crystallography of this unique crystal.  I have never seen anything like it!  I’ll have to let the photos do that….it does however measure 2.9 cm long, have a nice luster and basil attachments with no damage.  Very cool for anyone interested in a mineralogical mystery.  130$

 

 

 

 

 

OKF-510

OKF-510    Elbaite    Lord Hill Mine, Stoneham, Oxford, Co., Maine.  Ex. Dr. Steve Chamberlain collection.  To my knowledge this mine is not known for producing tourmalines of this quality, so it is by far the nicest I’ve seen from there, albeit small.  It is a beautifully terminated, GEM crystal measuring 2.6 cm and exhibiting colors from clear to pink to blue (all very light).  The single crystal is somewhat tabular and is highly striated.  A fantastic thumbnail specimen from a desirable location.  140$

 

 

 

 

 

OKF-511

OKF-511     Prehnite     Silman Quarry, Woodbury, Connecticut.  Ex. Dr. Steve Chamberlain collection.   Four attractive, light green balls of prehnite are intergrown in this 2.2 cm long cluster.  It is glued into the base of the perky box, undamaged and had minimal contact with what was once its matrix.  Attractive piece.  30$

 

 

 

 

 

 

OKF-512

OKF-512     Rutile pseudo. after Brookiteite     Magnet Cove, Hot Springs, Arkansas.   Ex. Dr. Steve Chamberlain collection.  Prev. George English specimen.  This is likely a nineteenth century specimen, and a good one at that.  A classic American specimen and location.  Great provenance.  Super piece!  This excellent example measures 2.7 x 1.5 x 1.5 cm and is a floater (although on surface is regrown).  It has zero damage and is amazing in its form and luster, especially for a pseudomorph.  Very complex growth features on the surface of this large crystal.  A beautiful example!  300$

 

 

 

 

 

OKF-513

OKF-513     Wollastonite and Grossular   RESERVED    Ex. Dr. Steve Chamberlain collection.  Previous Lazard Cahn, prev. George English specimen.  This is very likely a nineteenth century specimen with an important provenance.  Not many mineral specimens at all coming from Mexico at that time.  It is also very rare to find wollasonite in crystals for anywhere on Earth.  This piece is dominated by a single crystal measuring 2.8 x 1.5 x 1.1 cm which has several attachments of other Wollastonite crystals and numerous tiny green garnets.  Translucent white with no damage.  There is a price tag for $1.25 glued to its side.  I wish I could offer this fine specimen for that 1800s price.  Oh well.  230$

 

 

 

 

 

OKF-514

OKF-514     Hydroxylherderite    RESERVED    Fletcher Mine, Groton, New Hampshire.   Ex. Dr. Steve Chamberlain collection.  Prev. Ward’s Minerals specimen.  This 2 cm stack of crystals is mounted in a perky box.  They display well from all sides being undamaged.  They are translucent, well formed and have a nice luster.  Certainly not a common specimen here!  A New England collector’s delight.  160$

 

 

 

 

 

OKF-515

OKF-515     Apatite on Pyrite     Ashio, Shiotsuke, Japan.   Ex. Dr. Steve Chamberlain collection.  It is so tough to find any Japanese specimens on today’s mineral market.  This one is a cute .7 cm gemmy clear apatite (fluorapatite?) which sits up on edge and high above a massive pyrite matrix.  Very rare and attractive.  This won’t be here long so act fast.  100$

 

 

 

 

 

OKF-516

OKF-516      Grossular on Chlorite     Val Malencio, Italy.     Ex. Dr. Steve Chamberlain collection.  Prev. Dr. George Robinson.  3.6 x 2.4 x 2 cm plate of matrix has a complete coating of chlorite crystals in which there are several complex garnets to 1.1 cm each.  The grossular is a very deep red and slightly translucent.  No damage and very displayable piece from this classic European locality.  55$

 

 

 

 

 

OKF-517

OKF-517    Danburite    Toroku Mine, Iwato Mura Nishiuski- Gun, Hiyazaki, Prefecture, Japan.  Ex. Dr. Steve Chamberlain.  A gemmy, clear crystal measuring 2.5 cm long with internal flaws and veils.  The termination is steep and complex.  Lightly striated on three sides and the fourth has a large amount of surface growth features.  A fine single crystal form country know to value their minerals and keep them at home.  A rare find!  180$

 

 

 

 

 

   

OKF-518

OKF-518     Pyrite     RESERVED     Murgul Mine, Artvin, Turkey.  Ex. Dr. Steve Chamberlain, prev. Dr. George Robinson.  This octahedron is almost perfect in all ways.  It measures 1.8 cm on edge so is approx. 2.6 cm tip to tip.  The luster is great and form fantastic.  There is a very tiny ding where it is mounted in the perky box.  Barely visible!!  Tiny rust spot.  This is a great specimen.  The surface growth features are interesting including those along the junctions between the faces.  An outstanding and very displayable TN specimen.  75$

 

 

 

 

 

OKF-519

OKF-519    Apatite and Pyrite       Ashio, Shimotsuke, Japan.  Ex Dr. Steve Chamberlain collection.  A gem clear apatite with minor pyrite as inclusions and one on surface of one face.  The crystal measures  1.3 cm across and has a minimal basil contact on the edge of the tabular crystal.  One face is slightly frosted while the others are clear.    One crystal of the pyrite peers out of the base of one face while the others are inclusions which congregate near the base of the specimen.  A really nice crystal from Japan.  150$

 

 

 

 

 

OKF-527	Close up

OKF-527    Glauconite    De-Mix Quarry, Mt. St-Hilaire, Quebec, Canada.  Ex Dr. Steve Chamberlain collection.  Crystals identifies by Ann Sabina, 1977.  This is a very cool looking spray of well terminated, acicular crystals.  The group is small, probably only 3 to 4 millimeters but it stands up aesthetically off the mixed mineral matrix.  You can’t miss it being that it is a metallic black on white contrast of colors.  A fine example of a rare species.  60$

 

 

 

 

OKF-528

OKF-528     Vesuvianite    Vilui River, Siberia, Russia.  Ex Dr. Steve Chamberlain collection, prev. Donald Briggs collection.  A 3.4 cm primary crystal dominates the piece but it is fully girdled by rider crystals at its midsection.  Translucent, slightly striated, brown crystals.  There is a chip or crystal contact on the backside of one termination.  Specimen is glued into a perky box.  A fine cluster from an unusual location.  40$

 

 

 

 

 

OKF-529

OKF-529    Uvarovite     Erajavi, Finland.  Ex. Dr. Steve Chamberlain collection.  This specimen consists of a .6 cm crystal which is damage free and embedded in a quartz matrix.  It has flashes of green translucence but is better described as a rich deep green color and opaque.  Great locality specimen.  125$

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