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Vendor:UnderGround Treasures
Black Specimen Stands (Four Pack Combo - XL/X/M/S)
These custom stands are designed to provide greater grip and stability for specimens, while greatly reducing the risk of damage. The vast majority of specimen stands currently available are made from rigid plastic using straight round columns with sharp, flat and hard edges. This...- $15.00
- $15.00
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Vendor:UnderGround Treasures
White Specimen Stands (Four Pack Combo - XL/X/M/S)
These custom stands are designed to provide greater grip and stability for specimens, while greatly reducing the risk of damage. The vast majority of specimen stands currently available are made from rigid plastic using straight round columns with sharp, flat and hard edges. This...- $15.00
- $15.00
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Vendor:UnderGround Treasures
Calcite
A large piece featuring 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. Overall in great condition. Location: Brandberg, Namibia...- $150.00
- $150.00
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Vendor:UnderGround Treasures
Labradorite (Spectrolite)
A Feldspar mineral, also known as Spectrolite, or more descriptively, rainbow Spectrolite. Labradorite is named for Labrador, where it was first discovered (imagine that). Labradorite displays an iridescent effect known as labradorescence (once again, imagine that . . . ). When held at various...- $90.00
- $90.00
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Vendor:UnderGround Treasures
Fluorite
A very large, lustrous specimen featuring numerous large intersecting Fluorite octahedrons with purple phantoms. These highly translucent crystals sit on a first generation of deep purple massive Fluorite. See the backlit picture for translucency. The crystal edges might appear dinged at first glance, but...- $525.00
- $525.00
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Vendor:UnderGround Treasures
Fluorite on Fluorite
An exceptionally large, striking and aesthetic piece featuring a plate of intergrown, lustrous, deep-green Fluorite octahedra hosting a partial secondary layer of of translucent, gray-purple microcrystalline stepped Fluorite crystals. A beautiful specimen with great color, crystal formation, contrast and luster. In excellent condition. Location: Wuyi...- $440.00
- $440.00
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Vendor:UnderGround Treasures
Quartz cluster
A beautiful and gemmy cluster of lustrous, transparent, water-clear Quartz crystals. In excellent condition. Location: Collier Creek Mine, Mt. Ida, Montgomery Co., Arkansas, USA Size: 4 x 4 x 7 cm- $35.00
- $35.00
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Vendor:UnderGround Treasures
Quartz cluster
A lustrous Quartz cluster featuring a large main crystal with numerous smaller adjacent crystals. The crystals are all transparent with great luster, and most of all, pristine terminations. Great piece for an excellent price! Location: Collier Creek Mine, Mt. Ida, Montgomery Co., Arkansas, USA Size: 6.5...- $30.00
- $30.00
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Vendor:UnderGround Treasures
Aurichalcite with Calcite
A very aesthetic and colorful piece featuring a chocolate-brown Limonite matrix hosting numerous clusters of clear, intergrown, transparent and lustrous Calcite rhombs heavily included by rich-teal, fibrous Aurichalcite. There are also small clusters and veins of radial, acicular Aurichalcite and Calcite throughout the piece....- $150.00
- $150.00
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Vendor:UnderGround Treasures
Aurichalcite with Calcite
A very aesthetic and colorful piece featuring a chocolate-brown Limonite matrix hosting a cluster of intergrown, transparent and lustrous Calcite rhombs heavily included by rich-teal, fibrous Aurichalcite across the top ridge. There are also small clusters and veins of radial, acicular Aurichalcite and Calcite...- $595.00
- $595.00
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Vendor:UnderGround Treasures
Quartz
A large, transparent, colorless Quartz crystal with a simply pristine termination. It’s so rare to find undamaged Quartz crystal terminations, especially one this large - but it is and it’s amazing! Location: La Belleza Mine, Santander, Columbia Size: 7 x 6.5 x 14.5 cm- $140.00
- $140.00
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Vendor:UnderGround Treasures
Quartz
A colorful, lustrous cluster of Colombian Quartz crystals on orange-yellow Limonite matrix. The crystals are transparent, with pristine terminations and have an eye-catching yellow hue on the terminations due to Limonite inclusions (not to be confused with Mango Quartz with Halloysite inclusions). A very...- $115.00
- $115.00
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Vendor:UnderGround Treasures
Quartz
A very large cluster of lustrous, glassy intersecting Columbian Quartz crystals. This is a really clean and sharp piece with clean, pristine terminations. In excellent condition. Location: La Belleza Mine, Santander, Columbia Size: 18 x 13 x 16.5 cm- $240.00
- $240.00
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Vendor:UnderGround Treasures
Cobalto Calcite
This aesthetic piece features gemmy, lavender, coblato Calcite pentagonal repeated twin crystals. The crystals are lustrous and vibrant and are arranged on a ridge above a white and dark-grey matrix. Spectacular color, crystal formation and contrast. In excellent condition. Location: Bou Azzer, Ouarzazate, Drâa-Tafilalet Region,...- $185.00
- $185.00
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Vendor:UnderGround Treasures
Cobalto Calcite
A protected vug filled with pink to rose-colored coblato Calcite nail-head crystals. Spectacular color, crystal formation and contrast. In excellent condition. Location: Bou Azzer, Ouarzazate, Drâa-Tafilalet Region, Morocco Size: 8.5 x 6 x 6 cm- $160.00
- $160.00
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Vendor:UnderGround Treasures
Heulandite in Basalt Geode
A rare piece featuring a layered cluster of transparent, parallel, clear Heulandite “coffin” shaped crystals on a black Basalt Geode. Great contrast, crystal formation and symmetry. In excellent condition. Location: Maharashtra, India Size: 11.5 x 5.5 x 7 cm- $95.00
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Vendor:UnderGround Treasures
Agate Geode (2 halves)
A large Agate Geode perfectly split in half revealing white/grey Agate banding with a white Quartz druzy filled center. The Geode is completely natural and unaltered in every way - no cutting or polishing. I love how polishing can often reveal hidden beauty, but...- $145.00
- $145.00
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Vendor:UnderGround Treasures
Brucite
Brucite is an uncommon mineral, up to now found only in a handful of deposits around the world and relegated to unimpressive shades of white to green. Thanks to new, recent finds in Pakistan, we now have Brucite with vibrant lemon-yellow crystals, with a...- $95.00
- $95.00
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Vendor:UnderGround Treasures
Brucite
Brucite is an uncommon mineral, up to now found only in a handful of deposits around the world and relegated to unimpressive shades of white to green. Thanks to new, recent finds in Pakistan, we now have Brucite with vibrant lemon-yellow crystals, with a...- $225.00
- $225.00
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Vendor:UnderGround Treasures
Aragonite
A large, lustrous radiating cluster of translucent red-brown Aragonite crystals. The crystals are considered pseudo-hexagonal, that is, they appear 6-sided but are actually three twinned crystals forming together. In excellent condition. Location: Tazouta, Sefrou Province, Fés-Boulemane, Morocco Size: 8 x 5 x 6.5 cm- $60.00
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Vendor:UnderGround Treasures
Aragonite
A large, lustrous radiating cluster of translucent red-brown Aragonite crystals. The crystals are considered pseudo-hexagonal, that is, they appear 6-sided but are actually three twinned crystals forming together. In excellent condition. Location: Tazouta, Sefrou Province, Fés-Boulemane, Morocco Size: 11 x 6.5 x 6 cm- $60.00
- $60.00
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Vendor:UnderGround Treasures
Aragonite
A large, lustrous radiating cluster of translucent red-brown Aragonite crystals. The crystals are considered pseudo-hexagonal, that is, they appear 6-sided but are actually three twinned crystals forming together. In excellent condition. Location: Tazouta, Sefrou Province, Fés-Boulemane, Morocco Size: 10 x 7 x 5.5 cm- $60.00
- $60.00
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Vendor:UnderGround Treasures
Amethyst with Calcite
An exceptionally large Geode filled with Amethyst druzy and some stalactitic growth. On top of the Amethyst druzy is a second generation of thin, white scalohedral Calcite crystals, many in pairs and flower-like clusters. The combination is stunning! Add to that a black exterior...- $375.00
- $375.00
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Vendor:UnderGround Treasures
Celestine Geode
A large geode filled with gemmy, transparent blue Celestine crystals. The crystals are all in pristine condition and with no damage. I was able to pick through literally hundreds of Celestine Geodes in order to find a few that were exceptional including this one...- $250.00
- $250.00
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Vendor:UnderGround Treasures
Silver
A striking specimen featuring Native Silver on white Calcite. The Calcite has been etched revealing the beautiful, dendritic formations of the Native Silver (Dendrite: a crystal aggregate composed of branching skeletal or tree-like formations. Minerals.net). The crystal formations are stunning, and this piece is...- $315.00
- $315.00
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Vendor:UnderGround Treasures
Chrysocolla with Malachite
A very colorful, large and aesthetic combo piece featuring botryoidal and banded turquoise-blue Chrysocolla with deep-green Malachite. All natural with no polishing or dyes. Location: Katanga, DR Congo Size: 12.5 x 6 x 7.5 cm- $95.00
- $95.00
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Vendor:UnderGround Treasures
Aragonite
A lustrous radiating cluster of translucent red-brown Aragonite crystals. The crystals are considered pseudo-hexagonal, that is, they appear 6-sided but are actually three twinned crystals forming together. In excellent condition. Location: Tazouta, Sefrou Province, Fés-Boulemane, Morocco Size: 6 x 4.5 x 4.5 cm- $40.00
- $40.00
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Vendor:UnderGround Treasures
Stibnite
A large aesthetic radiating cluster of metallic-gray Stibnite crystals on the leading edge of the matrix. In addition to the focal cluster are numerous miniature Stibnite blades throughout the matrix. This piece is very unique and aesthetic - the luster, crystal formation, symmetry and...- $950.00
- $950.00
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Vendor:UnderGround Treasures
Mango Quartz
This piece is simply stunning! It’s large with a grey matrix hosting a dense cluster of Mango Quartz. The Mango Quartz crystals are pristine, exceptionally lustrous, transparent, and host a deep-yellow termination (thus the "mango" association). The large focal crystal literally grew on the...- $390.00
- $390.00
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Vendor:UnderGround Treasures
Sulfur
Deep yellow, transparent, lustrous complex Sulfur crystals on matrix. These sulfur crystals are striking - their color, luster and crystal formation are outstanding - a very aesthetic piece in excellent condition. Location: El Desierto Mine, San Pablo de Napa, Daniel Campos Province, Potosi Department, Bolivia...- $155.00
- $155.00
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