Colorado Mineral Specimens For Sale, Page 2

 

OKH-442

OKH-442     Rhodochrosite    American Tunnel Mine, Silverton, Colorado.  Ex Nancy Collins collection.  Attractive pink rhombs to .5 cm each on micro quartz matrix.  The specimen is damage free and measures 3 x 3 x 2.5 cm.  $100

 

 

 

 

 

 

OKI-589

OKI-589    Vesuvianite     Italian Mountain, Taylor Park., Colorado.  Ex. Dr. Steve Chamberlain Collection.  A rare and fine example which measures 3.2 x 2.5 x 1.2 cm with crystals to .9 cm each.  The crystals are gemmy and exhibit outstanding luster.  There is some edge damage on one crystal but the others are wonderful.  Light yellowish green color to these glassy crystals.  An unusual find.  145$

 

 

 

 

 

 

OKI-622

OKI-622    Amazonite    Take Five Claim, Pikes, Peak, Teller Co., Colorado.  Ex. Dr. Steve Chamberlain Collection.  A wonderful, rich blue, green single crystal measuring 2.5 x 2.3 x 1.6 cm.  It is almost a floater, double terminated, with only a small area of contact at its base.  No damage, Nice form, excellent luster…competition grade example of this common material.  Currently glued in a perky box.  70$  

 

 

 

 

 

 

OKI-621

OKI-621     Amazonite     Crystal Creek, Colorado.  Ex. Dr. George Robinson Collection.  A nice green/ blue single crystal of good form with minor manganese overgrowths.  The crystal measures 3.6 x 2.5 x 1.4 cm and has base and back contacts.  25$

 

 

 

 

 

 

OK-005

OK-005    Pyrite    RESERVED    Mammoth Mine, Central City District, Gilpin Co., Colorado.  Ex. Dr, Steve Chamberlain Collection.  Pretty TN specimen measuring 2.5 cm on longest face.  High luster and sharp form to this complex crystal composed of a cube modified by a dodecahedron.  The stepped growth on each face makes it attractive and very display worthy.  Contact is only to a well concealed section of the base.  Only micro rubs which are not distracting.  90$

 

 

 

 

 

 

 

OKF-546

OKF-546    Gold     Cripple Creek, Colorado.  The specimen is composed of multiple plates of gold that total 1.2 cm across.  A good example which is mounted on Styrofoam in a perky box.  Sorry about the fibers in image.  90$

 

 

 

 

 

 

 

OKF-463

OKF-463    Calcite Stalactites    American Tunnel, Sunnyside Mine, Howardsville, Silverton District, San Juan County, Colorado.  Ex. Dr. Steve Chamberlain collection, prev. Donald Briggs collection.  Several bright white stalactites on matrix from a sit famous for its rhodos and fluorites.  3 x 2.8 x 1.8 cm.  Mounted in a perky box.  22$

 

 

 

 

 

 

OKF-643

OKF-643     Quartz     Crystal Peak, Colorado.   Ex. Dr. Steve Chamberlain collection.  What a cool piece.  Unusually translucent smoky quartz measuring 9 cm long.  There is a minor piece of weathered rock attached and the specimen is double terminated.  Basal termination is multiple and does have some dings.  Other tip is very nice but also shows a tiny chip, only visible with magnification.  This is an excellent Tessin habit quartz for this price….45$

 

 

 

 

 

 

 

OKF-461

OKF-461    Rhodochrosite and minor Quartz    American Tunnel, Sunnyside Mine, Howardsville, Silverton District, San Juan County, Colorado.  Ex. Dr. Steve Chamberlain collection, prev. Donald Briggs collection.  A 3.5 x 2.5 x 1.7 cm plate of light pink, micro crystals.  Specimen is mounted in a perky box.  Minor sulfides.  No damage.  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-137

OKF-137    Sphalerite with Siderite    Eagle Mine, Gilman, Colorado.  Ex. Jim Turek Collection.  A superior display piece from Colorado measuring 9 x 5 x 3 cm.  It sits on edge and displays a fully crystallized frontal face that is extremely aesthetic.  The siderites are tabular and light tan in color and perfectly dispersed within the sphalerites.  The sphalerites show two types of crystal face development: the first is highly lustrous mirror like faces, while the second harvest slightly lower luster with unique surface feature growths.  A great specimen for the Colorado collector.  $750

 

 

 

 

 

 

OKF-075

OKF-075     Barite    Grand Junction, Colorado.  Ex. Dr. Steven Chamberlain collection.  This large TN specimen measures in at 3.4 x 3.1 x 2.5 making it barely able to fit into a Perky box.  The big crystals are clear with some veils of inclusions.  An attractive, displayable specimen with no damage.  100$

 

 

 

 

 

 

OKF-035

OKF-035    Rhodochrosite on Quartz with Sphalerite and Pyrite          Sweet Home Mine, Alma, Colorado.  Ex. Jim Turek Collection.  An aesthetic piece with several rhodos to 1.5 cm each.  Nice gemmy crystals that are networked into the quartz yet stand up well for display.  The backside of the specimen is sawn flat as most are from this location.  7.5 x 6 x 2.5 cm thick.  One cluster of rhodos shows some cleaving.   Add some color to your collection with this fine specimen.  500$

 

 

 

 

 

 

OKE-096

OKE-096    Barite    Stoneham, Wield County, Colorado.  Beautiful, blue, translucent, double terminated crystals forming a cross shaped display.  There is a tiny crystal which penetrates a termination on the large crystal which is cleaved, otherwise damage free.  Measures 6.1 cm.  Sorry, but the photo of this one is very poor.  Fantastic piece for this price.  40$

 

 

 

 

 

 

 

OKE-097

OKE-097    Barite    Stoneham, Wield County, Colorado.  Beautiful, blue, translucent, single terminated crystals in parallel growth.  Damage free.  Measures 5.6 x 3 x 1.3 cm.  Fantastic piece for this price.  35$

 

 

 

 

 

 

OKE-055

Best color representation.

OKE-055    Barite    Stoneham, Wield County, Colorado.  Beautiful, blue, translucent, double terminated crystals forming an display.  Damage free.  Measures 7 cm.  Fantastic piece for this price.  40$

 

 

 

 

 

 

OKD-844

Back

OKD-844    Barite     Stoneham, Weld Co., Colorado.  Ex. Dr. Steve Chamberlain Collection.  A nice big grouping of parallel growh barites to 5.7 cm each.  The crystals are a nice blue color, translucent to transparent and well formed.  Basil contact and a small crystal missing on back.  A very good specimen for this Colorado location.  80$

 

 

 

 

 

 

OKD-836

Backs

OKD-836    Microcline    Crystal Peak, Colorado.  Ex. Dr. Steve Chamberlain Collection.   A pair of double terminated feldspars which are low on luster but high on form.  One measures 3.5 and the second 2.5 cm in length.  Classic material.  75$

 

 

 

 

 

 

OKD-753

OKD-753    Covellite     Summetville, Colorado.  Ex. Jim Turek Collection.  2.5 x 2.5 x 1.8 cm cluster of high luster, metallic crystals.  Attractive specimen!  50$

 

 

 

 

 

 

OKD-596

OKD-496    Rhodochrosite    American Tunnel, San Juan Co., Colorado.  Ex Nancy Collins Collection.  Here is a fine thumbnail specimen measuring 1.9 x 1.8 x 1.4 cm.  Most of the piece is composed of a single complex rhodo of good color.  Nice associations if pyrite and quartz add color and character.  Zero damage.  In Perky box.  70$

 

 

 

 

 

 

OKD-497

Bottom of specimen.

OKD-497    Rhodochrosite    American Tunnel, San Juan Co., Colorado.  Ex Nancy Collins Collection.  1.5 x 1.5 x .9 cm rhomb of rhodochrosite on crystalline and massive quartz.  Overall dimensions are 4.5 x 3.5 x 2 cm.  This piece has an old style collection number on its base as well as some residual Styrofoam from a previous mount.  The crystal is beautifully formed and resting up high on the matrix.  A nice specimen from a classic American locale.  350$

 

 

 

 

 

 

OKD-498

OKD-498    Rhodochrosite    American Tunnel, San Juan Co., Colorado.  Ex Nancy Collins Collection.  A small grouping of deep ping interlocking, tabular rhombs to 1.2 cm each.  The cluster is 2 x 1.2 x 1 cm and has what appears to be minor crystals of sphalerite.  Every view is a good one on this piece.  A very attractive and desirable thumbnail specimen.  65$

 

 

 

 

 

 

OKD-499

OKD-499    Rhodochrosite    Sweet Home Mine, Alma, Colorado.  Ex Nancy Collins Collection.  2 cm gemmy rhomb with about 50% clean faces and 50% cleaved and having matrix contact.  Minor quartz and a visible inclusion of sphalerite or tetrahedrite.  Cherry red and great translucence.  125$

 

 

 

 

 

 

OKD-371

Back

OKD-371     Manganocalcite      Ouray, Colorado.  Ex. Nancy Collins Collection.   The grouping of crystals here measures 8 x 4 x 2 cm and is a pleasing pink color which is slightly darker than the photo indicates.  Individual crystals reach 5 cm.  On backside there is a crystal that is cleaved off.  Wonderful front view.  320$

 

 

 

 

 

 

OKD-312

OKD-312    Rhodochrosite   American Tunnel, Silverton, Colorado.   Ex. Nancy Collins Collection.  Rhodo rhombs coated by quartz druze on the main face of this small cabinet specimen.  On top of this is a single rhomb of pink rhodochrosite which measures 1.5 cm on edge.  There is a chip (cleave) on one corner.  Other areas are very rough which appears to be in-situe  damage or growth or both.  I priced this as being natural (and bought it as such).  Now I question this enough to feel I have to cut the price in half.  It displays nicely several ways and is still a quality specimen.  Great North American classic at a fine price.  Not 1,500….750$

 

 

 

 

 

 

OKD-154

OKD-154    Pyrite and Bravoite   Colorado.  Ex. Dr. Steve Chamberlain Collection.  Wards Mineral piece with old tag.  5 x 3 cm display face on this metallic specimen is fully crystallized.  Appears to be all pyritohedrons of moderate luster.  I know nothing about bravoite so can’t comment on it.  50$

 

 

 

 

 

 

OKC-071

OKC-071  Sphalerite and Calcite?   Gilman, Colorado.  Acquired from Dottie Herman, circ. 1964, Ex. Dr. Steve Chamberlain Collection.  Great old Colorado piece which measures 7. 5 x 5 cm.  It is a plate which has nice bulges of sphalerite crystals to .4 cm each.  Calcites? are tabular and up to .7 cm each.   Classic material.  Very fairly priced at 80$

 

 

 

 

 

 

OKB-954

OKB-954   Feldspar? Quartz? Pseudo by Tourmaline????  Lake George, Colorado.  Self collected piece from many years ago.  Came from a small pocket which contained nice quartz crystals and a couple of these weird things.  Small unknown crystals on the surface.  In TN perky box.  18$

 

 

 

 

 

 

OKB-576

OKB-576    Goethite Pseudomorph after Pyrite   Colorado.   Ex. Dr. Steve Chamberlain collection, acquired from Ward's, Prev. C. B. Sawyer collection #182.  Big 5 cm pseudo.  Classic, just wish I had a more specific location.  Big crack on one side but very stable.  Great value for some Colorado collector at 130$

 

 

 

 

 

OKB-264

OKB-264    Amazonite   Crystal Creek? (maybe Crystal Peak), Colorado.   Super color to this individual 3 x 3 x 2.5 cm crystal.  In perky box.  12$

 

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