20 results found for “pyrite-sulfides*”

I’m not sure where to begin with this piece - it’s another one of my favorites and I notice something new every time I study it. Besides being huge, the most obvious feature are the Stibnite clusters - their delicateness, metallic luster and flower-like...

A plate of light-brown Chert hosting several sharp cubic Galena crystals, including a few miniature Galena crystals on the bottom of the matrix. An excellent specimen from the now-closed mines of Picher, Oklahoma. Location: Picher, Ottowa County, Oklahoma, USA Size: 10.5 x 7 x 3.5 cm...

A spherical nodule of golden-metallic Pyrite crystals. The nodule is covered on all sides with Pyrite crystals. Very unique formation and in excellent condition. Location: Otjihase Mine, Von Francois Farm 60, Windhoek Rural, Khomas Region, Namibia Size: 3.8 x 3.2 x 2.5 cm

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts 3 lustrous Pyrite cubes, 3 cm, 2.5 cm and 2 cm., all in excellent condition. Great piece!...

A large cluster of intergrown, stepped-growth Chalcopyrite crystals with Siderite on a contrasting Dolomite Matrix. The Chalcopyrite has a golden metallic luster which accentuates the stepped-growth crystal lines. A very unique and aesthetic piece with great luster, color and contrast. In excellent condition. Location: Panasqueira...

This is a superb specimen of cuboctohedral (cubic with octahedral corners) Galena from the Gidiursko Mine, Bulgaria. The Galena crystals from this mine are often sharp with a brilliant, metallic/mirror-like luster. Add to that numerous radiating clusters of contrasting, transparent, colorless needle-Quartz and you...

Pyrite cubes never get old - they are completely natural, and thus a favorite of collectors. This particular piece hosts two large intersecting Pyrite cubes - both perfect and just amazing! The perfect cubic formation, metallic luster and contrast with the matrix makes for...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 4 cm Pyrite cube. There are two minor contacts (the one on top...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 4 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a large 3 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

A vary large, lustrous cluster of intersecting Pyrite cubo-octohedral crystals. The crystals are large and well formed with complex surface textures which make for a unique and aesthetic piece. The metallic luster is mirror-like and exceptional. A great piece in excellent condition. Location: Huanzala Mine,...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 3.7 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a 2.5 cm Pyrite cube and a large 3 cm intergrown cube - both perfect...

A showy cluster of Sphalerite crystals on quartz, with red microcrystalline quartz crystals intermingled with, and in some instances, coating several of the Sphalerite crystals, along with numerous Calcite crystals populating the piece, especially the back. The Sphalerite crystals are a deep reddish-brown (see...

A very aesthetic piece featuring a complex cluster of intersecting, brilliant-metallic Galena crystals perched perfectly on top of the matrix. Beautiful luster, contrast and symmetry. A great piece in excellent condition. Location: Tri-State Mining Area, Galena, Illinois, USA Size: 7.2 x 6.5 x 3 cm