Pseudomorphed Mineral Specimens For Sale

 

Pseudomorphs such as this goethite after pyrite make interesting mineral specimens for collectors.  Pseudomorphs make interesting mineral specimens for collectors.

 

We are aware that some of you out there must be specializing in the unusual mineral replacements called pseudomorphs.  Weather they are encrustations, full or partial replacements, or casts after another mineral we will put some of ours here for your consideration.  We believe our selection holds interesting and attractive pseudos for all levels of collectors.  Some are self collected while others come from collections we have purchased.

 

 

 

 

OKN-961

OKN-961     Goethite pseudo after Pyrite     Pelican Point, Utah.  Ex. Harold L. Dibble collection.  I've seen lots of these and  this is the finest cabinet sized one.  Views damage free from any direction with its only contact being the base (largest end).  Nice luster!  8.5 x 6.2 x 5.9 cm.  Cubes are up to 3.8 cm on edge each.  If you want a really top shelf pseudomorph, here it is.  $270

 

 

 

 

 

 

OKM-105

Back or base

OKM-105     Goethite       RESERVED      White Desert, Egypt.  Ex. Harold L. Dibble collection.  A very fine example of one of these specimens.  Rich attractive patina, star like radiating form, no damage, floater.  Great looking miniature that measures 5.3 x 4.9 x 4.7 cm.  $140

 

 

 

 

 

 

OKL-102

OKL-102    Malachite pseudomorphs after Azurite    Milpillas Mine, Sonora, Mexico.  3.3 x 2 x 1.6 cm overall.  Crystals replaced by malachite of two colors (light green and dark rich green) of malachite.  No damage.  Very nice example of this modern day classic.  $40

 

 

 

 

 

 

OKL-103

OKL-103    Malachite pseudomorphs after Azurite     Milpillas Mine, Sonora, Mexico.  3.4 x 2.5 x 2.2 cm overall.  Crystals replaced by malachite of two colors (light green and dark rich green) of malachite.  These crystal pseudos are large and obvious.  No damage.  Very nice example of this modern day classic.  $55

 

 

 

 

 

 

OKN-144

OKN-144     Prehnite casts after Laumontite    Poona, India.  A very lustrous example of this now common material.  8 x 7 x 5.2 cm.  Excellent translucence, several small contacts, nice condition and display worthy.  $30

 

 

 

 

 

 

OKL-807

OKL-807     Goethite pseudo after Pyrite   New Holland, Lancaster Co., Pennsylvania.  A damage free floater measuring 2.5 cm in diameter.  Nicely striated, good luster.  Perfect.  $35

 

 

 

 

 

OKL-804

OKL-804    Goethite pseudo after Pyrite    Ross Hill, Transvaal, South Africa.  Ex. Dr. Steve Chamberlain collection.  A very well formed, euhedral single crystal measuring 3.4 x 3.3 x 2.4 cm.  No contacts, damage or problems of any type.  Nice luster, showy.  $35

 

 

 

 

 

 

OKK-964

OKK-964      Uralite with Calcite    Powers Farm, Pierrepont, St. Lawrence County, New York.  Field collected by Michael Walter Summer 2013 from classic site on hilltop.  These specimens collected during the 2013 season are fine examples naturally weathered from a large open vein that was somehow missed by many decades of serious collectors that came before me.  I spent 38 days working the vein to recover these specimens which are all of very fine quality.  Again, these specimens are naturally exposed, not etched, so they are exceptionally stable and the tiny fractures seen in close up views are almost always fully healed.  Most came from a depth of five to ten feet below the surface and many could benefit from further cleaning.  These are all top quality specimens and not the cheap stuff one finds on e-Bay that gets etched from massive calcite in someone's back yard.  The uralite is a tremolite/ talc pseudomorph after diopside resulting from retrograde metamorphism. 

A fine example of double terminated crystals in calcite matrix.  Natural weathering except on backside where the calcite was cleaved from matrix.  Contact along one edge of largest crystal but still a fine example of a complex terminated crystal.  4.3 x 2 x 2.5 cm with the largest uralite measuring 3.8 cm.  An excellent specimen.  $45

 

 

 

 

 

OKK-966

Bottom or back

OKK-966      Uralite on Phlogopite    Powers Farm, Pierrepont, St. Lawrence County, New York.  Field collected by Michael Walter Summer 2013 from classic site on hilltop.  These specimens collected during the 2013 season are fine examples naturally weathered from a large open vein that was somehow missed by many decades of serious collectors that came before me.  I spent 38 days working the vein to recover these specimens which are all of very fine quality.  Again, these specimens are naturally exposed, not etched, so they are exceptionally stable and the tiny fractures seen in close up views are almost always fully healed.  Most came from a depth of five to ten feet below the surface and many could benefit from further cleaning.  These are all top quality specimens and not the cheap stuff one finds on e-Bay that gets etched from massive calcite in someone's back yard.  The uralite is a tremolite/ talc pseudomorph after diopside resulting from retrograde metamorphism. 

Good crystals in a cluster, also in need of cleaning (and root removal).  A good example and price.  4.9 x 3.4 x 2 cm with uralites to 2.9 cm.  $35

 

 

 

 

 

 

 

OKK-967

OKK-967     Uralite and Dravite    Powers Farm, Pierrepont, St. Lawrence County, New York.  Field collected by Michael Walter Summer 2013 from classic site on hilltop.  These specimens collected during the 2013 season are fine examples naturally weathered from a large open vein that was somehow missed by many decades of serious collectors that came before me.  I spent 38 days working the vein to recover these specimens which are all of very fine quality.  Again, these specimens are naturally exposed, not etched, so they are exceptionally stable and the tiny fractures seen in close up views are almost always fully healed.  Most came from a depth of five to ten feet below the surface and many could benefit from further cleaning.  These are all top quality specimens and not the cheap stuff one finds on e-Bay that gets etched from massive calcite in someone's back yard.  The uralite is a tremolite/ talc pseudomorph after diopside resulting from retrograde metamorphism. 

A fine example with many large damage free crystals of uralite and some nice dravite crystals too.  Very high quality.  I personally prefer these specimens to look dirty, almost like they come from the pocket, so don't heavily clean them.  This is a great example of that but can certainly be cleaned better by its new owner if that is the desired look.  7.2 x 4.5 x 3.5 cm overall with dravites to 1 cm and uralites to 2.5 cm each.  $120

 

 

 

 

 

 

 

OK-968

OKK-968      Uralite amd Phlogopite    Powers Farm, Pierrepont, St. Lawrence County, New York.  Field collected by Michael Walter Summer 2013 from classic site on hilltop.  These specimens collected during the 2013 season are fine examples naturally weathered from a large open vein that was somehow missed by many decades of serious collectors that came before me.  I spent 38 days working the vein to recover these specimens which are all of very fine quality.  Again, these specimens are naturally exposed, not etched, so they are exceptionally stable and the tiny fractures seen in close up views are almost always fully healed.  Most came from a depth of five to ten feet below the surface and many could benefit from further cleaning.  These are all top quality specimens and not the cheap stuff one finds on e-Bay that gets etched from massive calcite in someone's back yard.  The uralite is a tremolite/ talc pseudomorph after diopside resulting from retrograde metamorphism. 

A fine example with well formed crystals of both species.  Damage free, complex terminations, and a nice classic look.  4.6 x 4.6 x 3 cm with uralites to over 2 cm each.  $45

 

 

 

 

OKK-962

OKK-962      Uralite on Phlogopite    Powers Farm, Pierrepont, St. Lawrence County, New York.  Field collected by Michael Walter Summer 2013 from classic site on hilltop.  These specimens collected during the 2013 season are fine examples naturally weathered from a large open vein that was somehow missed by many decades of serious collectors that came before me.  I spent 38 days working the vein to recover these specimens which are all of very fine quality.  Again, these specimens are naturally exposed, not etched, so they are exceptionally stable and the tiny fractures seen in close up views are almost always fully healed.  Most came from a depth of five to ten feet below the surface and many could benefit from further cleaning.  These are all top quality specimens and not the cheap stuff one finds on e-Bay that gets etched from massive calcite in someone's back yard.  The uralite is a tremolite/ talc pseudomorph after diopside resulting from retrograde metamorphism.  

Large well formed pseudomorphs of excellent quality.  The piece has contact along the edge of the long crystals but still views nicely.  7.6 x 3.5 x 2.5 cm overall with uralite crystals to 4.5 cm each.  $40

 

 

 

 

 

 

 

OKK-963

OKK-963      Uralite on Phlogopite    Powers Farm, Pierrepont, St. Lawrence County, New York.  Field collected by Michael Walter Summer 2013 from classic site on hilltop.  These specimens collected during the 2013 season are fine examples naturally weathered from a large open vein that was somehow missed by many decades of serious collectors that came before me.  I spent 38 days working the vein to recover these specimens which are all of very fine quality.  Again, these specimens are naturally exposed, not etched, so they are exceptionally stable and the tiny fractures seen in close up views are almost always fully healed.  Most came from a depth of five to ten feet below the surface and many could benefit from further cleaning.  These are all top quality specimens and not the cheap stuff one finds on e-Bay that gets etched from massive calcite in someone's back yard.  The uralite is a tremolite/ talc pseudomorph after diopside resulting from retrograde metamorphism. 

An exceptional example of this material with very large, stocky crystals.  Some crystal damage on several sides but overall this is a superior piece for the site.  Complex terminations on the larger crystals.  5.4 x 4 x 3.5 cm overall with uralite crystals to well over 3 cm each.  $70

 

 

 

 

 

 

OKK-814

OKK-814     Siderite cast after Calcite     Aggenys, North Cape, South Africa.  These odd things have been around for awhile now.  Totally hollow and it can be seen due to breakage on one edge.  The piece measures 7.2 x 5 x 5 cm.  It is a matrix specimen and great conversation piece!  $45

 

 

 

 

 

 

OKK-804

OKK-804     Siderite cast after Calcite     Aggenys, North Cape, South Africa.  A complete, hollow, chocolate brown pseudomorphs measuring 5.6 x 4 x 2.5 cm.  No damage.  $60

 

 

 

 

 

 

OKI-073

OKI-073     Safflorite pseudomorph after Silver     Frood Mine, McKim Twp., Sudbury Dist. Ontario, Canada.  Prev. Oren Root collection and x-ray identified by Dr, George Robinson.  What an uncommon and nice looking pseudo.  These rare pieces are probably worth 100$++ per specimen but the group will be kept together.  The largest is 1.2 cm and all are outstanding replacements that are far more aesthetic than most pseudos.  Great little floaters with nice 3-D form.  Sorry about the poor photographs.  Grab these before some dealer finds them and scatters them individually.  Rare, rare, rare,   185$

 

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