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Vendor:UnderGround Treasures
Brochantite
A striking piece featuring deep-green, highly translucent, acicular Brochantite crystals on a dark-brown matrix from Tsumeb. At first glance it can appear to be Malachite, but the deep-green color and reflections from countless crystal faces requires a closer look. With a loupe it is...- $180.00
- $180.00
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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
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
Cerrusite
A striking specimen of twinned crystals of glassy, striated Cerussite on a black/brown matrix. In excellent condition. Location:Â Tsumeb, Namibia Size:Â 2.5 x 2.7 x 4 cm- $475.00
- $475.00
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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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Vendor:UnderGround Treasures
Dioptase with Calcite
A very aesthetic combination piece from Tsumeb featuring emerald-green Dioptase crystals with colorless, lustrous transparent Calcite rhombohedrons, all on a contrasting brown matrix. Exceptional contrast, color and luster. In excellent condition. Location:Â Tsumeb, Namibia Size:Â 6.5 x 5 x 4 cm- $175.00
- $175.00
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Vendor:UnderGround Treasures
Atacamite with Quartz
A lustrous and colorful piece featuring numerous long, lustrous, dark-green crystals of Atacamite on a matrix of light-green druzy Quartz. A unique piece in excellent condition. Location:Â Lily Mine, Pisco Umay, Ica Department, Peru Size:Â 11.5 x 3 x 6 cm- $260.00
- $260.00
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Vendor:UnderGround Treasures
Aragonite, Blue
An extremely aesthetic specimen of botryoidal sky-blue Aragonite with needle-like (acicular) crystals throughout on dark-brown matrix. The unique sky-blue color is a result of copper inclusions, creating a unique, natural (no artificial dyes) and beautiful color. In excellent condition. Location:Â Wenshan, Yunnan Province, China Size:Â 10.5...- $155.00
- $155.00
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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 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
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 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
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
Epidote
A superb, lustrous spray of dark olive-green Epidote crystals. A beautiful and classic formation in excellent condition. Location:Â Pampa Blanca, Castrovirreyna District, Huancavelica Department, Peru Size:Â 7.8 x 5 x 2 cm- $185.00
- $185.00
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Vendor:UnderGround Treasures
Erythrite
A beautiful, well-formed spray of deep-wine colored Erythrite on a dark, contrasting matrix. The color, the crystal formation, the luster and the contrast are all impressive. In excellent condition. Location:Â Agodual Quarry, Bou Azzer, Ouarzazate Province, Morocco Size:Â 5.2 x 4.4 x 2.7 cm- $275.00
- $275.00
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Vendor:UnderGround Treasures
Fluorapatite
This piece features numerous transparent, yellow crystals of Apatite on with white Quartz matrix. The two main converging Apatite crystals at the front of the piece are quite gemmy with glassy luster and sharp terminations. Nice contrast and in excellent condition. Location:Â Cerro de Mercado,...- $260.00
- $260.00
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Vendor:UnderGround Treasures
Prehnite with Epidote
A large specimen featuring numerous spherical formations of translucent green prehnite on dark green Epidote crystals. These Prehnite spheres are aggregates of slender, radiating crystals clearly seen in the closeup of a contacted sphere. This is a very fine specimen with excellent color and...- $350.00
- $350.00
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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
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
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 on Calcite
A beautiful specimen of intergrown, cream-colored Calcite rhombohedrons with a dusting of vibrant green, microcrystalline Dioptase. It’s as if the Calcite has been sprinkled with green glitter - just amazing! This is a spectacular specimen and in excellent condition. Location: Tsumeb Mine, Tsumeb, Otjikoto Region,...- $675.00
- $675.00
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Vendor:UnderGround Treasures
Garnet, Spessartine on Albite
Garnets are found in metamorphic rocks, and this particular piece hosts a large and striking Garnet crystal with large and well-defined crystal faces, along with numerous small Garnet crystals scattered throughout the piece. This piece is eye-catching with great contrast and a large, well-defined,...- $380.00
- $380.00
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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
Epidote
This is a massive cluster of countless intersecting, doubly-terminated prismatic Epidote crystals (ok, maybe not countless, but way more than I care to count . . . ). The crystals have striated faces, a deep green color and are in excellent condition. There is...- $1,300.00
- $1,300.00
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Vendor:UnderGround Treasures
Astrophyllite
This piece hosts a complete spray of radiating, bronze-colored Astrophyllite crystals on a nicely contrasting bed of white Quartzite, along with a smaller spray on the side. The Astrophyllite crystals have an almost metallic luster. I have searched far and wide and have rarely...- $375.00
- $375.00
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Vendor:UnderGround Treasures
Celestine Geode
A large geode filled with gemmy, transparent sky blue Celestine crystals. The crystals are all in pristine condition, exceptionally large and with no damage. I was able to pick through literally hundreds of Celestine Geodes in order to find a few that were exceptional...- $265.00
- $265.00
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Vendor:UnderGround Treasures
Celestine Spray on Hematite
A beautiful, colorless Celestine spray on Hematite. Colorless Celestine is “pure” in that there are no impurities that usually give this mineral a variety of colors, especially blue. A truly unique and attractive piece with great contrast. Excellent condition. Location: N'Chwaning III Mine, Kalahari, South...- $200.00
- $200.00
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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
Apophyllite, Clear on Chalcedony
This is a beautifully balanced and aesthetic specimen of water clear, transparent Apophyllite. Positioned perfectly in the center of a mass of lustrous Apophyllite crystals, is a large, perfect pyramidal Apophyllite crystal, but to the left is a large rectangular crystal, contrasting two distinct...- $625.00
- $625.00
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