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772 specimens found
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Chalcopyrite (fine Euhedral crystals)
stock #10.1-070
Commodore Mine, Creede, Mineral County
Colorado, United States
5.5 x 4.1 CM (small cabinet/ large miniature)
price: $360


An extraordinary, sharp and brilliant Chalcopyrite from the classic Creede district. Chalcopyrite is a delicate, brittle mineral that rarely survives without damage, it is quite rare to find really good crystal specimens. This is a very fine example with rich patina and form, individual crystals reach 2.2 CM and the overall condition is outstanding, no eye visible damage! Fine piece for the locality and for the specie.
Cinnabar on Dolomite
stock #7 CNA 522
Chatian Mine, Fenghuang
Hunan, China
6.5 x 5 CM (small cabinet/ large miniature)
price: $220


A very fine gemmy 1.3 cm main crystal of Cinnabar sits well in an exposed vug of crystallized Dolomite. It is rare to find this form, tabular and untwinned in any but micro crystals. The color is the richest possible red and is in good condition. Close examination shows a hairline crack in the prism but it seems solid and does not detract at all. This is far above the usual quality!
HOLD Pyrrhotite (ex Lechner, John Marshall)
stock #HOLD 0105-JM-4049
Loben, Bad St. Leonhard, Packalpe Mts.
Carinthia, Austria
7.4 x 4.4 CM (cabinet)
price: $100


A very old, classic European location piece, presenting some good sharp bundles of stacked Pyrrhotite crystals. The original label says "pyrrhotite and marcasite" the latter is not evident. John Marshall's note says "where is the marcasite?" Wherever it is or went, the piece has a great pedigree with reasonable cost. These are very rare in any form today.
Galena (mirror bright modified cubes)
stock #10.1-068
Gyudyurska Mine, Zlatograd
Smolyan Oblast, Bulgaria
8.5 x 5.4 CM (cabinet)
price: $140


Impossibly bright and lustrous, these modified cubes make a very eyecatching specimen. The fantastic Bulgarian Galenas are already noted as some of the best ever found. There are many forms and associations, but the most impressive are those with an intense metallic luster that is almost impossible to photograph. Damage free, this is a great value.
Amazonite (Microcline)
stock #10.1-005
Lake George, Park County
Colorado, United States
7.2 x 5.9 CM (cabinet)
price: $285


Sharply crystallized and with excellent color, this is a good Colorado Amazonite. Without damage and with good esthetics, this is an affordable specimen from a classic location.
Eosphorite on Quartz (doubly terminated)
stock #0128-JM-2142
Taquaral, Itinga
Minas Gerais, Brazil
10.1 x 3.8 x 2.2 CM (cabinet)
price: $185


A 10 CM, doubly terminated gemmy quartz crystal showing parallel growth is host to a rich display of Eosphorite crystals. No damage, the Eosphorite blades are in radiating clusters that reach up to 1.7 cm. Ex John Marshall collection, he obtained this piece in the 1970's. Good Eosphorites are uncommon, and this is an exceptionally fine one.
SOLD Siderite Spheres on Quartz (ex John Marshall)
stock # SOLD 0124-JM-4076
La Sirena Mine, Guanajuato
Guanajuato, Mexico
10.4 x 6.5 CM (cabinet)
price: $0


An exceptional Mexican specimen, a fine example of the specie and this uncommon form. This is the very best specimen of this sort I have seen. Bright sparkling spheres in a chain arrangement are contrasted by the quartz crystals. Damage free, with strong esthetics (it could be trimmed to a smaller matrix but I prefer the current form) this is a fine and rare example from Guanajuato. Ex John Marshall collection.
Beryl (Zoned-milky white to Aquamarine)
stock #0126-JM-383
Palmital Mine, Minas Novas, Jequitinhonha Valley
Minas Gerais, Brazil
3.9 x 3.6 CM (miniature)
price: $175


An unusual Beryl crystal, from a find several years ago (1960's) that produced these odd specimens. Bright glassy luster, a deep translucent bluish white zone at the base changes to a clear blue green near the termination. There is micro chipping on some edges, as all pieces had from this find, despite this the specimen is the most pristine I have seen of this style. A very different Beryl that is certainly rare!
772 specimens found
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 |