Check out the Azurite & Malachite, Arsenopyrite & Ilvaite, Apophyllite with Mordenite & Stilbite, Fluorite Crystals with Drusy Quartz, Blue Barite Crystal Cluster with Calcite, Calcite Crystals on Matrix, Quartz var. Amethyst, Adamite, Chalcopyrite with Quartz, Chalcopyrite Crystals on Pyrite, Prehnite "Cast" after Glauberite with Calcite, Fluorite Crystals on Calcite, Sulfur with Aragonite, Fluorapophyllite & Stilbite, Manganoan Calcite with Calcite & Quartz, Calcite Crystal on Chalcedony ps. after Calcite, Pyrite with Sphalerite, Celestite Crystal Cluster, Manganoan Calcite on Quartz with Sulfides, Blue Chalcedony over Barite, Vivianite Crystals on Siderite, Calcite crystals on Dolomite, Pyrite Crystals on Calcite, Chalcopyrite with Sphalerite & Quartz and Copper Nuggat mineral specimens on this page.
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
12 x 8 x 3 cm
Daye County, Hubei, China
15 x 10 x 4.5 cm
Quartz var. Amethyst
Farm Boekenhouthoek, South Africa
7 x 5.5 x 2.5 cm
Ojuela Mine, Mapimi, Durango, Mexico
5 x 4 x 1 cm
Nice plate of Amethyst crystals (to 2.25 x 2 cm), some sceptered, on matrix
Quartz var. Amethyst Crystals on Matrix
Goboboseb Mountains, Brandberg District, Namibia, Africa
9.5 x 7 x 4 cm
Super specimen of glassy Quartz crystals on Chalcopyrite. Note the double terminated bow-tie shaped Quartz crystal in the center.
A heavy, solid piece of silvery Pyrite with nicely separated, sharp, golden crystals of Chalcopyrite to 2 x 2 cm.
Chalcopyrite with Quartz
Boldut Mine, Cavnic, Maramures, Romania
10.5 x 8 x 4 cm
Chalcopyrite Crystals on Pyrite
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Department, Peru
15 x 10 x 6 cm
Ex-Jorge Diaz Asenjo Collection
Top quality and extremely rare specimen of light green, lustrous Prehnite "casts" after rhombic shaped Glauberite on basalt matrix. Also present is a translucent golden rhombohedron of Calcite.
Prehnite "Casts" after Glauberite with Calcite
Fanwood Quarry, Watchung, Somerset County, New Jersey
13 x 12 x 5.5 cm
Lustrous, golden colored Calcite Crystals.
Calcite Crystal Cluster
Denton Mine, Hardin County, Illinois, USA
11.5 x 4.5 x 4 cm
Ex-Gregory Crenko Collection
Super yellow-green Fluorite cubes on Calcite in fine condition. The Fluorite crystals are partially coated with glistening microcrystals of Calcite.
Fluorite Crystals on Calcite
El Hamman Mine, Meknes, Meknes-Tafilalet Region, Morocco
11 x 10.5 x 6.5 cm
Bright yellow, translucent Sulfur crystals on a bed of Aragonite crystals.
Beautiful coverage of light green Fluorapophyllite crystals with cream colored Stilbite on basalt matrix.
Sulfur Crystals with Aragonite on Matrix
Agrigento Province, Sicily, Italy
17.5 x 7 x 5 cm
Fluorapophyllite & Stilbite Crystal Cluster
Jalgaon, Maharashtra, India
15 x 11 x 5 cm
Gemmy Fluorite with Quartz
Xianghualing, Chenzhou Prefecture, Hunan Province, China
11 x 9 x 6.5 cm
A gorgeous pair of gemmy, mint-green, interpenetrating Fluorite cubes aesthetically set atop a sculptural sulfide matrix covered with sparkly milky Quartz crystals. The stunning Fluorite crystals measure 4 x 3.6 x 3.2 cm and very glassy and lustrous. The impressive, sharp, tabular structure in the middle may be a barite pseudomorph or an unusual tabular Quartz crystal.
In fine condition.
Manganoan Calcite with Calcite & Quartz
Huanggang Mine, Hexigter, Inner Mongolia A. R., China
18 x 17 x 14 cm
A spectacular, large, two-sided, combination specimen. Features a dramatic, 12.7 x 10.5 cm rosette of lustrous, pastel-pink Manganoan Calcite disks perched atop a sloping field of glassy, translucent Quartz points. A sharp, 3.8 cm on the diagonal, Manganoan Calcite rhomb on the lower left side is a very nice accent. The back side is quite different! The parallel-growth disks of the rosette are set on an earlier generation, impressive, 10 cm on the diagonal, tannish-pink, Manganoan Calcite rhomb. Quartz is on the specimen matrix and the 6.7 Quartz point is a nice accent. In very fine condition.
Pyrite & Sphalerite Crystals
Mina Hercules, Ticapampa District, Recuay Province, Ancash Department, Peru
9 x 8 x 3 cm
Ex-Jorge Diaz Asenjo Collection
Calcite Crystal on Chalcedony ps. after Calcite
Jalgaon, Maharashtra, India
9 x 9 x 7.5 cm
Celestite Crystal Cluster
N'Chwaning II Mine, Kuruman, Kalahari, South Africa
9.5 X 8.5 X 3 cm
Manganoan Calcite on Quartz & Sulfides
Droujba Mine, Lakli, Rhodope Mountains, Bulgaria
8 x 7.5 x 3.5 cm
A light honey colored, transparent Calcite rhomb measuring 4.5x3.75x3.5 cm perched on a Chalcedony ps. after Calcite matrix. In fine condition.
Nice cluster of golden, slightly iridescent Pyrite with nicely formed crystals of Sphalerite.
Esthetic growth of two groups of elongated radiating prismatic crystals with very acute terminations. The crystals, bright and of uniform clear sky blue color, are on a small matrix. From a not that common location for the species. In fine condition.
Pretty formation of two generations of Manganoan Calcite on Quartz and Sulfides.
Eye appealing coverage of light blue to cream colored Chalcedony over Barite crystals. Possibly a partial pseudomorph.
Blue Chalcedony over Barite Crystals
Kalahari Manganese Fields, Northern Cape Province, South Africa
11.5 x 9 x 2.5 cm
This is definitely the best Vivianite specimen I have ever offered on my site. It has super gemmy emerald green crystals (to 2.2x0.8 cm) aesthetically arranged by nature on a Siderite matrix - much better than the more common, fragile Limonite material. The Vivianite crystals are in pristine condition with nice accenting dotting of Siderite crystals on some of the terminations. A Beauty !!!
Vivianite Crystals on Siderite
Huanuni, Dalence, Oruro, Bolivia
9 x 6.5 x 4.5 cm
Calcite Crystal on Dolomite Matrix
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
18.5 x 13 x 4 cm
A super, gemmy, golden and lustrous double terminated Calcite crystal, measuring 9.5x5x3.5 cm, aesthetically perched on a Dolomite matrix from the famous Elmwood Mine.
Pyrite Crystal on Calcite
Huanzala Mine, Huallanca, Huanuco, Peru
12 x 9 x 7 cm
This is not your "run of the mill" Pyrite specimen.
A large (6.5x6x6 cm) silvery, highly lustrous complex crystal formation , perched atop a solid Calcite matrix, from the Huanzala Mine privides a stunning display. In fine condition.
Very nice plate of golden Chalcopyrite crystals with Sphalerite and minor Quartz.
Chalcopyrite, Sphalerite & Quartz
Huaron District, Pasco Department, Peru
12 x 10 x 4 cm
20 x 9.5 x 1 cm
Nice, large Copper nuggat from Michigan.
Keystone Sale - All specimens on this page are 50% Off List Price