This a large and beautiful specimen of lustrous, transparent to translucent yellow cubic Fluorite with purple zoning from the famous Minerva #1 Mine in the Cave-in-Rock District, Hardin county, Illinois. The core of these Fluorite cubes is a honey-yellow with a thin zone of...

A large plate of Galena and Chalcopyrite on a matrix hosting two prominent, transparent to translucent, light yellow nail-head Calcite crystals. The Calcite crystals are complete and undamaged and contrast very nicely with the metallic luster of the Galena/Chalcopyrite infused matrix. There are a...

A large, beautiful specimen of transparent, blue-green Fluorite with white Calcite crystals (including a bladed cluster) and a small area of sparkling microcrystalline Pyrite to add even more character to the piece. The luster, color, the contrast - it’s all amazing, but the depth...

A beautiful specimen of Celestine blades hosting several gemmy, lustrous “rootbeer” colored Fluorite cubes. The main center Fluorite cube is over 2 cms on edge. The contrast of color, crystal shape and luster is excellent, the balance is great, and the Fluorite cubes exhibit...

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...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts 3 lustrous Pyrite cubes, 3 cm, 2.5 cm and 2 cm., all in excellent condition. Great piece!...

An exceptionally large specimen hosting numerous translucent, white flattened rhombohedral Calcite crystals on matrix. The Calcite crystals have a soft, waxy luster, are striated, and are quite large. There is crystal growth in the voids, particularly evident on the bottom of the piece (though...

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...

This is a huge specimen of lustrous, highly translucent purple cubic Fluorite. The crystals exhibit spectacular stair-stepped growth patterns that are commensurate with the overall size of the piece. There are a few nicks that are pretty insignificant on a piece this size -...

I have some specimens from Red River that the Selenite ball is completely covered with golden Selenite crystal “fishtails.” But for some reason this piece catches my eye. For starters, the two Selenite crystals exhibit the classic “fishtail” formation, they’re sharp, transparent and they’re...

This is a superb piece featuring a perfect hemisphere of highly translucent yellow Fluorite in a Quartz lined vug. Even the vug itself is translucent. Amazing contrast, luster and symmetry. There are not many specimens like this around that are this clean and damage...

This is a unique, beautiful large piece that features black, lustrous Sphalerite (with Pyrite) hosting a first layer of miniature translucent, white Calcite rhombohedral crystals, then a second layer of larger, layered, pink Manganoan Calcite crystals. The end result is a piece with amazing...

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...

A very aesthetic piece of deep-green botryoidal Malachite with microcrystalline Malachite covering the entire surface, creating a beautiful sparkly luster. The botryoidal layering can be clearly seen on the cross-sections on the sides. A showy piece in excellent condition. Location: Lukuni Mine, Lubumbashi, Katanga, DR...

A superb large specimen of lustrous, white bladed Albite hosting numerous hexagonal crystals of silvery Muscovite Mica, with the focal cluster featuring several large, intergrown Muscovite hexagonal crystals. The luster, symmetry and contrast is amazing, and the Muscovite crystal centerpiece really stands out! In...

An aesthetic piece of lustrous, transparent, colorless needle Quartz crystal clusters on contrasting black Sphalerite. Also referred to as “porcupine Quartz”, the crystals are elongated and nicely terminated. A beautiful piece in excellent condition.  Location: Huaron Mining District, Huayllay District, Pasco Province, Pasco Department, Peru...

An attractive specimen of lustrous, radiating clusters of transparent green Apophyllite crystals on a plate of contrasting Stilbite crystals. These unusual Apophyllite crystals have flat terminations and the radiating, round-like clusters are incredibly aesthetic. They are also the reason for the nickname, “disco ball”...

A striking specimen of a large Basalt Geode hosting numerous white Okenite and Gyrolite balls. It is a fascinating piece with lots going on inside, yet my favorite feature is the ability to view this Geode from front AND back! Two openings make it...

An especially large specimen of lustrous, transparent to translucent, colorless Selenite on matrix. The two large crystals are aggregates exhibiting parallel crystal growth, and the the lower large crystal is twinned (“fishtail”). In addition to the two focal crystals are numerous smaller crystals throughout...

An exceptionally large, hemispherical specimen of rich-pink Manganoan Calcite, exhibiting an inter-grown, fan-shaped, radiating crystal habit on a massive scale, and I mean massive. I haven’t seen a piece this large or well formed before. There are miniature crystals covering the entire front surface...

A superb specimen of numerous, lustrous, highly translucent fan-shaped clusters of Hemimorphite crystals on a contrasting red-brown Limonite matrix. The large Hemimorphite fan-shaped crystals are some of the nicest I’ve seen. A really nice piece in excellent condition. Location: Mina La Ojuela, Mapimi, Durango, Mexico...

A large, perfectly terminated transparent light-blue Aquamarine on bladed Muscovite Mica crystals. In addition to the main Aquamarine crystal are three smaller Aquamarine crystals perfectly terminated as well. A truly superb specimen with flawless crystals, excellent contrast and symmetry. No damage. Location: Chumarbakor Mine, Nagar...

A very large plate of lustrous, Hematite included milky-white Quartz crystals (causing the red tinting near the tips). There is a light “dusting” of pearly Dolomite (creating a “snow” effect) and Chalcopyrite crystals scattered throughout the piece. Extremely aesthetic and in excellent condition. Location: Jiangxi...

A perfectly centered single crystal of indigo-blue Lazurite, a highly sought after gemstone, in contrasting white marble. The Lazurite with its well-defined faces and the color, contrast and symmetry of the piece is beautiful and extremely aesthetic. Excellent specimen. Location: Sar-e-Sang, Kokscha Valley, Badakshan, Afghanistan...

A superb, very large specimen hosting numerous stepped cubo-octahedral Fluorite crystals. The Fluorite crystals are a unique blue-purple color, incredibly lustrous and transparent, and perfectly spaced throughout the piece. Then there is a subsequent overgrowth of miniature white-to-colorless Quartz crystals covering the entire matrix...

A large, lustrous black Schorl Tourmaline crystal perfectly set on contrasting white Albite. The Schorl is perfectly terminated and nicely striated, and you literally can’t get any better contrast. Great piece with excellent symmetry in excellent condition. Location: Skardu District, Shigar Valley, Pakistan Size: 8.5 x...

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: Altyn-Tyube...

A large, fascinating specimen of flattened rhombohedral light-pink Calcite crystals in clusters of vertically and horizontally layered crystals in parallel orientation. Often referred to as “poker chip Calcite” or “bladed Calcite.” The mangano Calcite blades populate the entire matrix, creating a stunning aesthetic visual....

A beautiful and delicate spray of acicular, transparent, colorless to white Scolecite crystals on a base of dense Scolecite crystals. The contrasting direction of the upper cluster of crystals to the base is really eye-catching. A very aesthetic piece in great condition, especially given...

A sharp, translucent, terminated, yellow-green Beryl crystal (Heliodor) positioned perfectly on contrasting Quartz. Nice, lustrous specimen in excellent condition. Location: Haddam Neck, Haddam Middlesex County, Connecticut, USA Size: 8.5 x 5 x 6 cm