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Vendor:UnderGround Treasures
Cerrusite with Duftite
An exceptional piece featuring a large transparent, colorless glassy complex wide crystal of Cerussite hosting random clusters of olive-green Duftite microcrystals. The Cerussite crystal faces are pristine and sharp, and the contrast with the Diftite crystals is unique and striking. A great piece in...- $325.00
- $325.00
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Vendor:UnderGround Treasures
Chalcedony Needle Stalactites
A fascinating new find out of Nashik, India: A plate of needle-like stalactites of Chalcedony creating a breathtaking visual - it’s surreal, like some kind of miniature set piece with miniature arches (see the pics). This is another one of those “that can’t be...- $600.00
- $600.00
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Vendor:UnderGround Treasures
Chalcedony, Golden
A colorful specimen of lustrous, translucent, golden botryoidal Chalcedony in a Flint vug. A unique, aesthetic piece with great color, luster and form. In excellent condition. Location:Â Etretat, Seine-Maritime, Upper-Normandy, France Size:Â 7 x 5.6 x 4.5 cm- $145.00
- $145.00
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Vendor:UnderGround Treasures
Chalcopyrite
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:Â Panasqueira...- $225.00
- $225.00
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Vendor:UnderGround Treasures
Chrysocolla
This is a large, colorful specimen of Chrysocolla rough - it is completely natural and unaltered. On the “front” surface you can even see a botryoidal formation. Chrysocolla is a semi-precious stone used for jewelry, carving and more. This particular rough is an example...- $90.00
- $90.00
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Vendor:UnderGround Treasures
Chrysocolla
An exceptional specimen of turquoise-blue, botryoidal Chrysocolla with Malachite. The Chrysocolla is perfectly smooth and where the specimen was extracted you can see the banding in the Malachite. The color is completely natural and unaltered. It’s amazing and in great condition! Location: L'Etoile du Congo...- $225.00
- $225.00
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Vendor:UnderGround Treasures
Chrysocolla (polished)
A large rough of Chrysocolla with a flat, polished face. The color, pattern and depth is exceptional. If one had the means and desire, one or two more slabs could be made from this one piece. A beautiful, aesthetic piece. Location:Â Omaue Mine, Kunene Region,...- $175.00
- $175.00
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Vendor:UnderGround Treasures
Chrysocolla with Brochantite
An aesthetic piece featuring two spherical formations of aqua-blue Chrysocolla with a partial encrusting of Chrysocolla in a shallow cavity along the front of the matrix. In addition there are some lustrous, dark-green acicular (needle-like) Brochantite crystals that along with the Chrysocolla banding throughout the...- $165.00
- $165.00
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Vendor:UnderGround Treasures
Chrysocolla with Malachite
This is a miniature featuring vivid turquoise-blue botryoidal Chrysocolla over Malachite with the layering beautifully displayed on the edges. In very good condition. Location:Â L'Etoile du Congo Mine, Lubumbashi, Katanga, DR Congo Size:Â 4.2 x 2.5 x 2 cm- $20.00
- $20.00
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Vendor:UnderGround Treasures
Chrysocolla with Malachite
A beautiful specimen of vivid turquoise-blue botryoidal Chrysocolla with dark-green microcrystalline and botryoidal Malachite. A very aesthetic and colorful piece! Location:Â Lupoto Mine, Katanga, DR Congo Size:Â 9 x 9 x 6.5 cm- $120.00
- $120.00
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Vendor:UnderGround Treasures
Chrysocolla with Malachite
This is a beautiful eye-catching piece of turquoise-blue Chrysocolla over botryoidal Malachite in a vug, with the layering nicely displayed on the edges. A very aesthetic specimen of Chrysocolla in excellent condition. Location:Â L'Etoile du Congo Mine, Lubumbashi, Katanga, DR Congo Size:Â 8.5 x 7 x...- $145.00
- $145.00
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Vendor:UnderGround Treasures
Cobalto Calcite
A very large and impressive 15cm twinned Cobalto Calcite crystal. The crystal is transparent to highly translucent, a beautiful light pink-lavender color, and has numerous striated complex crystal faces. This crystal is twinned in the middle of the front face - the top has...- $650.00
- $650.00
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Vendor:UnderGround Treasures
Cobalto Calcite
A large specimen featuring lustrous pink transparent to translucent Calcite crystals lining a shallow vug. The pink color is due to Cobalt impurities. In addition to the main vug you can see numerous inclusions of Cobalto Calcite throughout the matrix, including a Cobalto Calcite...- $150.00
- $150.00
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Vendor:UnderGround Treasures
Cobalto Calcite
A beautiful specimen of lustrous, pink Cobalto Calcite in a shallow vug on contrasting matrix. Very aesthetic piece with great color and luster. In excellent condition. Location:Â Bou Azer, Tazenakht, Ouarzazate Province, Morocco Size:Â 8.5 x 3.5 x 7 cm- $65.00
- $65.00
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Vendor:UnderGround Treasures
Cobalto Calcite
A very colorful and aesthetic piece featuring a vug filled with druzy Cobalto Calcite crystals surrounded by white massive Calcite with striking rhombohedral cleavage, along with minimal gray matrix. A large and lustrous piece in excellent condition. Location:Â Bou Azer, Tazenakht, Ouarzazate Province, Morocco Size:Â 14...- $110.00
- $110.00
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Vendor:UnderGround Treasures
Conichalcite
A colorful specimen of brown Limonite and Quartz matrix hosting a layer of lustrous, miniature dark-green botryoidal aggregates of crystalline Conichalcite. This piece has great color and contrast and is in excellent condition. Location:Â Mina Ojuela, Mapimi, Durango, Mexico Size:Â 11 x 7.5 x 2 cm...- $80.00
- $80.00
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Vendor:UnderGround Treasures
Copper
A classic dendritic formation of native Copper crystals densely grouped together. (Dendrite: a crystal aggregate composed of branching skeletal or tree-like formations. Minerals.net) A unique and aesthetic piece of native Copper in excellent condition. Location: Itauz Mine, Djezkazgan, Kazakhstan Size: 5.5 x 1.3 x 9 cm- $70.00
- $70.00
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Vendor:UnderGround Treasures
Copper Dendrite
A large dendritic formation of native Copper crystals densely grouped together. A very aesthetic and showy piece of native Copper in excellent condition. Location:Â Itauz Mine, Djezkazgan, Kazakhstan Size:Â 8.5 x 3.2 x 15 cm- $190.00
- $190.00
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Vendor:UnderGround Treasures
Copper Dendrite
A classic dendritic formation of native Copper crystals densely grouped together. (Dendrite: a crystal aggregate composed of branching skeletal or tree-like formations. Minerals.net) A unique and showy piece of native Copper in excellent condition. Location:Â Itauz Mine, Dzhezkazgan, Kazakhstan Size:Â 3.5 x 1 x 12 cm...- $95.00
- $95.00
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Vendor:UnderGround Treasures
Copper Dendrite
A classic dendritic formation of native Copper crystals densely grouped together. (Dendrite: a crystal aggregate composed of branching skeletal or tree-like formations. Minerals.net) A unique and showy piece of native Copper in excellent condition. Location:Â Itauz Mine, Dzhezkazgan, Kazakkhstan Size:Â 5 x 1 x 8.5 cm...- $55.00
- $55.00
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Vendor:UnderGround Treasures
Copper Dendrite
A classic dendritic formation of native Copper crystals densely grouped together. (Dendrite: a crystal aggregate composed of branching skeletal or tree-like formations. Minerals.net) A unique and showy piece of native Copper in excellent condition. Location:Â Itauz Mine, Dzhezkazgan, Kazakhstan Size:Â 6.5 x 1.5 x 5.5 cm...- $50.00
- $50.00
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Vendor:UnderGround Treasures
Coral Agate
A large, very aesthetic and beautiful piece of agatized coral, formed when the original fossilized coral was pseudomorphed (completely replaced) by Chalcedony/Agate. Chalcedony, in this rounded, banded form, is referred to as Agate. The original piece was sawn in half and the face polished, displaying the light-brown/golden...- $175.00
- $175.00
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Vendor:UnderGround Treasures
Corundum var. Ruby
A perfectly centered crystal of pink-red Ruby in contrasting white Marble matrix. The Ruby crystal is lustrous, highly translucent and nicely terminated. A very aesthetic specimen with a beautifully colored Ruby crystal perfectly balanced - a great piece in excellent condition.- $485.00
- $485.00
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Vendor:UnderGround Treasures
Creedite
Two spherical groupings of radiating, transparent to translucent orange Creedite crystals on contrasting matrix. The Creedite crystals are gem-like in their luster and transparency. A beautiful piece in excellent condition. Location:Â Navidad Mine, Abasolo, Municipio de Rodeo, Durango, Mexico Size:Â 6 x 3.5 x 5 cm...- $95.00
- $95.00
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Vendor:UnderGround Treasures
Dioptase
Lustrous, deep green, transparent to translucent crystals of Dioptase in two main pockets - front and side. Great contrast and in excellent condition. Location: Altyn-Tyube Mine, Karagandy Province, Kazakhstan Size: 13 x 7.5 x 8.5 cm- $675.00
- $675.00
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Vendor:UnderGround Treasures
Dioptase
A large specimen hosting translucent, lustrous, vibrant-green Dioptase crystals on matrix. In addition to the fully crystallized front, there are numerous Dioptase veins throughout the matrix. It is a beautiful piece and the deep, lustrous green color is certainly eye-catching. In great condition. Location:Â Altyn-Tyube...- $295.00
- $295.00
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Vendor:UnderGround Treasures
Dioptase
A large piece of matrix with light-blue Shattuckite hosting some large, lustrous, translucent, sharp, deep-green Dioptase crystals lining a shallow vug. The large, focal Dioptase crystals is nearly 2 cm in size. There is also a light Dioptase druse on a portion of the...- $560.00
- $560.00
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Vendor:UnderGround Treasures
Dioptase
A cabinet-sized specimen of matrix hosting a perfectly centered dense cluster of lustrous, translucent, rich-green Dioptase crystals. Truly a beautiful mineral, and this specimen hosts some of the most lustrous and richly colored Dioptase to be found! Location:Â Altyn-Tyube Mine, Karagandy Province, Kazakhstan Size:Â 7.5 x...- $425.00
- $425.00
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Vendor:UnderGround Treasures
Dioptase
A cabinet-sized specimen of matrix hosting a dense cluster of lustrous, translucent, rich-green Dioptase crystals. Truly a beautiful mineral, and this specimen hosts some of the most lustrous and richly colored Dioptase to be found! In excellent condition. Location:Â Altyn-Tyube Mine, Karagandy Province, Kazakhstan Size:Â 8...- $340.00
- $340.00
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Vendor:UnderGround Treasures
Dioptase
A large piece of matrix with a shallow vug hosting a primary layer of white/clear Calcite rhombohedrons with a secondary layer of lustrous, emerald-green Dioptase crystals. A very aesthetic combination and great contrast not only between the white and green colors, but between the...- $210.00
- $210.00
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