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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
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
- $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
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
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:Â Katanga, DR Congo Size:Â 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
Epidote
A lustrous dark-green cluster of Epidote crystals with striations and wedge-shaped terminations on a matrix of crystallized massive Epidote. Under lighting, the classic pistachio-green can be clearly seen. A very aesthetic specimen of Epidote in excellent condition. Location:Â Pampa Blanca, Castrovirreyna District, Huancavelica Department, Peru...- $135.00
- $135.00
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Vendor:UnderGround Treasures
Aegirine with Microcline
An uncommon specimen featuring intersecting crystals of burnt orange-colored Microcline hosting clusters of long and large, lustrous, deep-green Aegirine crystals along with thick and stubby crystals and dense clusters of thin crystals. A unique and collectable piece with great contrast, symmetry, and a wide...- $285.00
- $285.00
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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
Actinolite in Quartz
A very large piece featuring dense clusters of reticulated, slender dark-green Actinolite crystals in clear Quartz. From a new find in Shigar Valley, Pakistan, this piece is densely populated on all sides and all the way thru. An eye-catching piece for its sheer density...- $285.00
- $285.00
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Vendor:UnderGround Treasures
Aegirine with Microcline
An uncommon specimen featuring intersecting crystals of buff-colored Microcline hosting dense clusters of thin, lustrous, deep-green Aegirine crystals. A unique and collectable piece with great contrast and symmetry. In excellent condition. Location: Girardville, Québec, Canada Size: 5.5 x 3.5 x 4 cm- $50.00
- $50.00
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Vendor:UnderGround Treasures
Aegirine with Microcline
An uncommon specimen featuring intersecting crystals of buff-colored Microcline hosting dense clusters of thin, lustrous, deep-green Aegirine crystals. A unique and collectable piece with great contrast and symmetry. In excellent condition. Location: Girardville, Québec, Canada Size: 5 x 4 x 4.5 cm- $55.00
- $55.00
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Vendor:UnderGround Treasures
Aegirine with Microcline
An uncommon specimen featuring intersecting crystals of buff-colored Microcline hosting dense clusters of thin, lustrous, deep-green Aegirine crystals. A unique and collectable piece with great contrast and symmetry. In excellent condition. Location: Girardville, Québec, Canada Size: 7 x 4 x 4.5 cm- $65.00
- $65.00
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Vendor:UnderGround Treasures
Celestine Geode
A large double 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...- $290.00
- $290.00
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Vendor:UnderGround Treasures
Glendonite
This is a very unique specimen: A spherical cluster of brown Calcite crystals pseudomorphed after Ikaite. The Calcite chemically replaced the mineral Ikaite while retaining the crystal shape of the original Ikaite. Although not an official name, this particular specimen/pseudomorph is referred to as...- $55.00
- $55.00
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Vendor:UnderGround Treasures
Glendonite
This is a very unique specimen: A spherical cluster of brown Calcite crystals pseudomorphed after Ikaite. The Calcite chemically replaced the mineral Ikaite while retaining the crystal shape of the original Ikaite. Although not an official name, this particular specimen/pseudomorph is referred to as...- $55.00
- $55.00
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Vendor:UnderGround Treasures
Glendonite
This is a very unique specimen: An elongated cluster of brown Calcite crystals pseudomorphed after Ikaite. The Calcite chemically replaced the mineral Ikaite while retaining the crystal shape of the original Ikaite. Although not an official name, this particular specimen/pseudomorph is referred to as...- $65.00
- $65.00
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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
Cassiterite
This aesthetic piece features a matrix of clear, crystalline Quartz hosting two black, lustrous, mirror-like Cassiterite crystals. The contrast is amazing! The large, focal Cassiterite crystal is striking, especially against the Quartz backdrop. In excellent condition. Location:Â Viloco Mine, Loayza Province, La Paz Department, Bolivia...- $170.00
- $170.00
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Vendor:UnderGround Treasures
Cassiterite
This cabinet-sized piece features a dense coating of black, lustrous, sharp Cassiterite crystals with minor clear Quartz on matrix from the famous Viloco Mine in Bolivia. The Cassiterite crystals are exceptionally large, very sharp and mirror-like and contrast nicely with the Quartz crystals. The...- $325.00
- $325.00
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Vendor:UnderGround Treasures
Cassiterite
This cabinet-sized piece features numerous black, lustrous, sharp Cassiterite crystals on a matrix of clear, microcrystalline Quartz from the famous Viloco Mine in Bolivia. The Cassiterite crystals are exceptionally large, very sharp and mirror-like and contrast nicely with the microcrystalline Quartz. The crystal edges...- $220.00
- $220.00
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Vendor:UnderGround Treasures
Cassiterite
This large piece (especially for the species) features a dense coating of black, lustrous, sharp Cassiterite crystals with minor clear Quartz on matrix from the famous Viloco Mine in Bolivia. The Cassiterite crystals are exceptionally large, very sharp and mirror-like and contrast nicely with...- $450.00
- $450.00
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Vendor:UnderGround Treasures
Blue-Green Aragonite
Aragonite comes in many forms and colors, one of the most common being the radiating clusters of translucent red-brown pseudo-hexagonal clusters. What makes this particular piece so unique is for one; its wheel shaped formation of parallel pseudo-hexagonal crystals. But by far, the most...- $195.00
- $195.00
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Vendor:UnderGround Treasures
Adamite var. Cuprian
A large and deep cavity in brown Limonite Gossan completely lined with transparent, lustrous green Adamite var. Cuprian. There are additional clusters of Adamite var. Cuprian throughout the outside of the cavity. The color, luster, and especially the contrast, are simply amazing! A superb...- $750.00
- $750.00
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Vendor:UnderGround Treasures
Aragonite Stalactite
A large stalactitic formation of transparent to translucent, lustrous white, cave Aragonite. A very aesthetic piece with countless delicate branching crystals throughout. Great luster, crystal formation and size. In excellent condition. Location:Â Chihuahua, Mexico Size:Â 10 x 9.5 x 6.5 cm- $90.00
- $90.00
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Vendor:UnderGround Treasures
Aragonite Stalactite
A large stalactitic formation of translucent, lustrous white, cave Aragonite. A very aesthetic piece with countless delicate branching crystals throughout. Great luster, crystal formation and size. In excellent condition. Location:Â Chihuahua, Mexico Size:Â 13.5 x 9 x 12.5 cm- $140.00
- $140.00
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Vendor:UnderGround Treasures
Aurichalcite
An exceptionally large piece hosting numerous radial clusters of blue-green Aurichalcite crystals throughout the red-brown matrix. There are clusters of Aurichalcite all over the matrix - you’ll enjoy exploring every nook and cranny! The color and contrast is striking - a unique and large...- $340.00
- $340.00
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