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Vendor:UnderGround Treasures
Cobalto Calcite
A beautiful specimen of lustrous, pink-colored Cobalto Calcite with minor Malachite on contrasting matrix from the DR Congo. Very aesthetic with great color. In excellent condition. Location: Kambove Mine, Kambove District, Katanga, DR Congo Size: 13 x 6 x 8 cm- $75.00
- $75.00
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Vendor:UnderGround Treasures
Calcite on Cuprite with Malachite inclusions
A large, very aesthetic piece from Tsumeb featuring deep-red, slightly translucent Cuprite crystals hosting a coating of clear, colorless, intersecting Calcite rhombohedrons with inclusions of microcrystalline Malachite, giving the Calcite a light-green hue. An impressive piece with great color and luster. In excellent condition....- $325.00
- $325.00
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Vendor:UnderGround Treasures
Calcite
This piece features numerous sharp, lustrous transparent Calcite rhombohedrons on a partial Calcite filled Dolomite nodule matrix from Tsumeb. Great contrast and crystal formation. In excellent condition. Location: Tsumeb, Namibia Size: 4.5 x 3 x 4.8 cm- $120.00
- $120.00
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Vendor:UnderGround Treasures
Calcite with Malachite
A very unique and rare piece from Tsumeb featuring a large cluster of transparent, colorless Calcite rhombohedrons with fibrous green Malachite inclusions. The effect is striking - the color, contrast and crystal formation is exceptional. Great piece in excellent condition. Location: Tsumeb, Namibia Size: 7 x...- $390.00
- $390.00
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Vendor:UnderGround Treasures
Calcite with Duftite
A very lustrous piece featuring numerous transparent, stair-stepped Calcite Rhombs on an olive-green partial Duftite nodule. Upon closer look, the Calcite has a hint of a cobaltoan hue to it, which when added to the luster and the olive-green Duftite, makes for a very...- $120.00
- $120.00
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Vendor:UnderGround Treasures
Mangano Calcite
A large plate featuring a layer of lustrous, pink, intergrown Mangano Calcite rhombohedrons on a dark matrix from Tsumeb. Fantastic color, and great contrast with the matrix. In excellent condition. Location: Tsumeb, Namibia Size: 9 x 3.5 x 5.5 cm- $160.00
- $160.00
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Vendor:UnderGround Treasures
Biotite in Calcite
A rare piece featuring numerous lustrous, black Biotite crystal clusters on Honey Calcite. The rhombic cleavage can be seen along the length of the honey Calcite, and in addition to all of the Biotite crystal clusters there is a complete pair of intersecting Biotite...- $225.00
- $225.00
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Vendor:UnderGround Treasures
Calcite
This piece features clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are colorless, transparent to translucent, and vary in size.. Good luster - even the matrix has a sparkling druzy luster. In excellent condition. Location: Brandberg, Namibia Size: 4.3 x 2 x 4.5 cm...- $75.00
- $75.00
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Vendor:UnderGround Treasures
Calcite
This piece features clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are colorless, transparent to translucent, and vary in size throughout the piece. Good luster - even the matrix has a sparkling druzy luster. In excellent condition. Location: Brandberg, Namibia Size: 4 x 3.5...- $60.00
- $60.00
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Vendor:UnderGround Treasures
Calcite
This piece features clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are colorless, transparent to translucent, and vary in size throughout the piece. Good luster - even the matrix has a sparkling druzy luster. In excellent condition. Location: Brandberg, Namibia Size: 4 x 3.5...- $65.00
- $65.00
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Vendor:UnderGround Treasures
Calcite
This piece features clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are colorless, transparent to translucent, and vary in size throughout the piece. Good luster - even the matrix has a sparkling druzy luster. In excellent condition. Location: Brandberg, Namibia Size: 7 x 3.5...- $85.00
- $85.00
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Vendor:UnderGround Treasures
Calcite
This piece features clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are colorless, transparent to translucent, and vary in size throughout the piece. Good luster - even the matrix has a sparkling druzy luster. In excellent condition. Location: Brandberg, Namibia Size: 5.5 x 5...- $80.00
- $80.00
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Vendor:UnderGround Treasures
Calcite
A large piece featuring clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are transparent to translucent with a slight Hematitic hue and vary in size throughout the piece. Nice luster - even the matrix has a sparkling druzy luster. Great piece in...- $95.00
- $95.00
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Vendor:UnderGround Treasures
Calcite
A large piece featuring clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are transparent to translucent with a slight Hematitic hue and vary in size throughout the piece. Nice luster - even the matrix has a sparkling druzy luster. Great piece in...- $125.00
- $125.00
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Vendor:UnderGround Treasures
Calcite
A large piece featuring clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are transparent to translucent with a slight Hematitic hue and vary in size throughout the piece. Nice luster - even the matrix has a sparkling druzy luster. Great piece in excellent...- $140.00
- $140.00
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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: Tsumeb, Namibia Size: 6.5 x 5 x 4 cm- $175.00
- $175.00
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Vendor:UnderGround Treasures
Amethyst Geode with Calcite
A unique Geode that is translucent with slight Amethyst banding, and lined with Quartz crystals completely coated with a 2nd generation of clear druzy Quartz. Add to that a single, long, slightly amber-colored Calcite crystal emanating from the very back of the Geode -...- $315.00
- $315.00
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Vendor:UnderGround Treasures
Pyrite with Calcite
A large cluster of lustrous Pyrite crystals hosting a partial coating of slightly pink, lustrous hemispherical clusters of Calcite crystals. Great luster, color and contrast - in excellent condition. Location: Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru Size: 9 x 6 x 10 cm- $145.00
- $145.00
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Vendor:UnderGround Treasures
Sulfur with Calcite
Deep yellow, transparent, lustrous complex Sulfur crystals with clusters of white, microcrystalline Calcite on matrix. These sulfur crystals are striking - their color, luster and crystal formation are outstanding - and along with the white Calcite and light-brown matrix makes for a very aesthetic...- $195.00
- $195.00
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Vendor:UnderGround Treasures
Mangano Calcite
A very large and beautiful piece featuring translucent miniature Mangano Calcite crystals in plumose aggregates covering the entire surface. Plumose: “Featherlike aggregate" (Minerals.net). These Calcite crystal formations are an uncommon occurrence - they are unique and extremely aesthetic. In excellent condition. Location: Huanzala Mine, Huánuco Department,...- $240.00
- $240.00
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Vendor:UnderGround Treasures
Calcite
This unique and aesthetic piece features two spherical Calcite crystal clusters on a plate of Calcite crystals. These clusters exhibit an “oily” luster with a striking yellow/orange color. No damage. Location: Wenshan, Yunnan Province, China Size: 12 x 7 x 8.5 cm- $325.00
- $325.00
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Vendor:UnderGround Treasures
Mangano Calcite
A large cluster of light-pink intersecting bladed Calcite crystals on a matrix covered with lustrous, clear Quartz crystals. The highlight of this piece is a very large, perfectly centered Calcite blade rising above the rest of the blades and positioned perpendicular to them. There...- $230.00
- $230.00
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Vendor:UnderGround Treasures
Cobalto Calcite
A large and very aesthetic specimen featuring a large vug completely lined with sharp, lustrous, translucent to transparent pink-lavender Cobalto Calcite crystals (The pink color is the result of Cobalt impurities). The contrast of the lustrous Cobalto Calcite with the surrounding dull, brown matrix...- $275.00
- $275.00
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Vendor:UnderGround Treasures
Amethyst with Calcite
A very large plate of lustrous, large deep-purple Amethyst crystals with two clusters (one large and one smaller) of highly translucent, colorless, intergrown parallel Calcite “nailhead spar” crystals emanating from the center of the plate of Amethyst. It is incredible! Amazing color, luster, symmetry...- $325.00
- $325.00
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Vendor:UnderGround Treasures
Calcite, Stilbite on Chalcedony and Quartz
An extremely large, elongated Geode, hosting a large, beautiful, transparent golden-tinted twinned Calcite crystal on the right side along with numerous pink-orange, lustrous Stilbite crystals, including one very large crystal on the left side, all on a bed of Chalcedony. Most of the Stilbite...- $1,450.00
- $1,450.00
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Vendor:UnderGround Treasures
Calcite, Stilbite with Chalcedony
A large and extremely aesthetic piece that features a base of Chalcedony coated Calcite hosting a couple of complex, lustrous, water clear Calcite crystals with four intersecting, perfectly formed pink-orange Stilbite crystals. The crystal formation, color, contrast, luster and symmetry are all amazing! It...- $550.00
- $550.00
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Vendor:UnderGround Treasures
Sphalerite with Calcite on Chalcedony
“Jack” is the nickname or slang term miners used to refer to Sphalerite. Black Sphalerite was called Black Jack and the translucent ruby-red from of Sphalerite was aptly called Ruby Jack. Thus, we have a very aesthetic piece consisting of dark-gray Chalcedony hosting numerous...- $375.00
- $375.00
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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
Calcite on Fluorite
A large cluster of lustrous, transparent, golden Fluorite cubes hosting a cluster of white, translucent Calcite scalenohedra perfectly positioned on the highest point. Striking contrast, color, crystal formation and symmetry. In excellent condition. Location: Moscona Mine, Solis, Llanera, Asturias, Spain Size: 9 x 5 x 8...- $350.00
- $350.00
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Vendor:UnderGround Treasures
Chalcedony Geode with Okenite and Calcite
An exceptionally large Basaltic Geode lined with lustrous, blue-gray crystalline Chalcedony hosting dozens (maybe hundreds . . . ) of small, white Okenite balls and a centered cluster of intersecting, lustrous golden Calcite crystals. An amazing piece with exceptional contrast, luster, crystal formation and...- $750.00
- $750.00
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