OKF-393

OKF-393    Microcline and Chlorite pseudomorph after Fluorapatite    “The Phosphate Trench”, Powers Farm, Pierrepont, New York.  Collected by Michael Walter, Summer 2008.  These are the second unusual find of the summer.  I am unaware of this form of pseudomorph from anywhere else in the world, and before this summer they were unknown at Powers Farm.  The analysis of these crystals was done by doctors Steve Chamberlain and David Bailey at Hamilton College.  This specimen shows small groupings double terminated crystals on both ends of a crudely formed 4.2 cm quartz crystal.  The crystals are up to 1 cm each and are mostly doubly terminated.  The piece has minor in-situe damage but is in nice shape overall.  A good example of this rare pseudomorph.  $45

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OKF-402   Microcline and Chlorite pseudomorph after Fluorapatite    “The Phosphate Trench”, Powers Farm, Pierrepont, New York.  Collected by Michael Walter, Summer 2008.  These are the second unusual find of the summer.  I am unaware of this form of pseudomorph from anywhere else in the world, and before this summer they were unknown at Powers Farm.  The analysis of these crystals was done by doctors Steve Chamberlain and David Bailey at Hamilton College.  This specimen stocky 2.1 cm crystal.  It has one repair, and singly terminated and generally in good shape. An exceedingly rare and unusual pseudomorph.  $75

OKF-394

OKF-394   Philogopite and Diopside    Lot 17, Range II, Wakefield Twp., Quebec, Canada.  Ex Dr. Steve Chamberlain collection.  Previously in the National Museums of Canada.  This is an exceptional mica specimen which measures 7.4 x 6.8 x 6.2 cm overall.  On the top of this specimen is a double terminated crystal measuring 4.2 cm.  He has a slight curvature to it shaped and complex terminations.  The specimen is in excellent condition and views well from all sides.  It is rare to find a non-pegmatite mica specimen of this quality from any location.  $150

 

 

 

 

OKF-397

OKF-397    Stilbite    Road Cut near Laurel, Wentworth Twp., Argentieul, Québec, Canada.  Ex Dr. Steve Chamberlain collection.  Previously in the National Museums of Canada collection.  There were very few of these specimens available in the mid-1980s when they were mined.  They were written about in the Mineralogical Record, vol. 37, no. 4, 2006, p. 283-296 by Velthuizen, Gault, Robinson and Scovil.  This excellent thumbnail specimen measures 2.6 x 2.4 x 2.1 cm it is capped by inverted, half wheat sheath of stilbite measuring 1.6 cm.  Damage free.  As good as most specimens in the article.  $40

 

 

 

OKF-398

OKF-398    Stilbite, Heulandite and Chabazite    Road Cut near Laurel, Wentworth Twp., Argentieul, Québec, Canada.  Ex Dr. Steve Chamberlain collection.  Previously in the National Museums of Canada collection.  There were very few of these specimens available in the mid-1980s when they were mined.  They were written about in the Mineralogical Record, vol. 37, no. 4, 2006, p. 283-296 by Velthuizen, Gault, Robinson and Scovil.  This one is fully formed and coated by crystals on all of that sides.  He measures 3.9 x 3.3 x 2.2 cm overall.  Great color contrasts, form and no damage make this a superior specimen.  Better than most specimens in the article.  $40

 

 

 

OKF-399

OKF-399    Stilbite and others    Road Cut near Laurel, Wentworth Twp., Argentieul, Québec, Canada.  Ex Dr. Steve Chamberlain collection.  Previously in the National Museums of Canada collection.  There were very few of these specimens available in the mid-1980s when they were mined.  They were written about in the Mineralogical Record, vol. 37, no. 4, 2006, p. 283-296 by Velthuizen, Gault, Robinson and Scovil.  This matrix cluster measures 4.4 x 4.1 x 2.4 cm.  Its primary display face is approximately 70% covered by crystals.  Everything is well formed in damage free were mineralized.  Way under priced at.... $45

 

 

 

OKF-400

OKF-400    Calcite    Road Cut near Laurel, Wentworth Twp., Argentieul, Québec, Canada.  Ex Dr. Steve Chamberlain collection.  Previously in the National Museums of Canada collection.  There were very few of these specimens available in the mid-1980s when they were mined.  They were written about in the Mineralogical Record, vol. 37, no. 4, 2006, p. 283-296 by Velthuizen, Gault, Robinson and Scovil.  Another beautiful matrix piece with the largest calcite rhomb measuring 1.8 cm.  The majority of this crystal and the others on the specimen have coatings of other minerals.  This very displayable piece measures 4.6 x 3.5 x 3 cm. Better than most specimens in the article.  $30

 

 

 

OKF-401

OKF-401    Chabazite and Stilbite Road Cut near Laurel, Wentworth Twp., Argentieul, Québec, Canada.  Ex Dr. Steve Chamberlain collection.  Previously in the National Museums of Canada collection.  There were very few of these specimens available in the mid-1980s when they were mined.  They were written about in the Mineralogical Record, vol. 37, no. 4, 2006, p. 283-296 by Velthuizen, Gault, Robinson and Scovil.  This is a superb specimen measuring 5.2 x 3.2by 2.7 cm.  Beautifully crystallized it sits on end and displays well from all sides.  Crystals reach 1.5 cm each several are penetration twins.  To very small areas of contract would matrix (one on base and one on back), otherwise a floater. Superior to specimens in the article.  $90

 

 

 

OKF-404

OKF-404    Quartz    Newlandslide Quarry, Stanhope, Weardale, Durham, England.  Ex Dr. Steve Chamberlain collection.  This is an attractive group of crystals on a 7 .3 cm long plate.  A couple of tips are damaged in the backside is partially recrystallize.  Unknown inclusions are both brown and gray.  $35

 

 

 

OKF-405	Closeup

OKF-405    Selenite    Red River floodway, Manitoba, Canada.  This is a very sharp looking specimen with a swallowtail twin perched atop the translucent ball of crystals.  The entire piece measures 4.5 x 2.7 x 2.6 cm.  The primary crystal is 2.5 cm long and exceedingly gemmy.  Zero damage.  $25

 

 

 

OKF-406	Back

OKF-406    Siderite   Hogarth Pit, Steep Rock Mine, Atikokan, Ontario, Canada.  This is an attractive, curtain like plate of crystals measuring 7.8 x 4 cm.  In most places it is less than half a centimeter thick.  The entire piece is coated by tiny siderite rhombs.  Only contact area is one edge in a tiny part of the base.  Very showy.  $20

 

 

 

OKF-407	Closeup	Back

OKF-407    Pyrite    ZCA Mine, Pierrepont, New York.  This have the specimen measures 13.5 x 11 x 6.5 cm overall.  The crystals are up to 1.2 cm in diameter and nicely disbursed on this solid tirade matrix.  Front back and sides are all mineralized.  The crystals are sharp damage free.  $45

 

 

 

 

 

OKF-408

OKF-408    Calcite and Chalcopyrite    Sweetwater Mine, Vibernum Trend, Reynolds Co., Missouri.  This specimen is almost floater with the only contact been along one edge.  All other surfaces are mineralized.  Dominating the piece are to double terminated calcites each measuring 5 cm.  The bigger of the two had a contact on one of its terminations.  The shape of the specimen is domical and it measures 7.5 x 7 x 5.5 cm overall.  Very displayable damage free piece.  60$

 

 

 

 

 

OKF-409

OKF-409    Aragonite    Minganillia, Spain.   This large cluster of crystals measures 8.5 cm in length and is a light purple color.  It is a well formed floater of moderate luster.  Nicely priced at 45$

 

 

 

 

 

OKF-410

OKF-410    Apatite    Tormiq, above Baghicha, Gilgit-Skardu Road, Northern Areas. Pakistan.  A large, light yellow apatite crystal which is translucent but gemmy in many areas.  Contact areas on back with some being regrown.  The piece measures 5 x 3.8 x 3.2 cm and has minor inclusions of what is likely a sulfide.  A good piece.  175$

 

 

 

OKF-411	Back

OKF-411    Inestite, Hubeite and Feldspar    Feng Jai Shan, Da Ye, Hubie Prov., China.  This attractive mix of crystals measures 5.5 x 3.8 x 2.8 cm with the largest inestite measuring 2.1 cm.  The underlying rhombohedral forms are most likely calcite.  The piece is a damage free floater so this price is excellent for such a rare and quality mineral specimen.  35$

 

 

 

OKF-412

OKF-412    Quartz (Amethyst)    Caballo Mts., Sierra Co., New Mexico.  This piece is certainly a rarity…measuring in at 13.5 x 10.5 x 6.2 cm it is also quite large.  It sits on edge covering its only contact area and displaying wonderfully from all sides.  There are only a couple of tiny tip dings so it is close to being damage free.  The staining is somewhat distracting ( would consider this side the back).  Some hematite inclusions.  A quality specimen from an unusual locality.  300$
 

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