A striking specimen featuring Native Silver on white Calcite. The Calcite has been etched with acid 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 on the front and...

A large, 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 on the front and sides...

From a relatively new discovery in Peru - this beautiful, all natural pink Opal has a botryoidal-looking form, with a soft, satiny luster. It is gem quality and hard to find - a striking piece with great color and luster. In excellent condition. Location: Ica,...

Black, lustrous, sharp Cassiterite crystals on colorless to white Quartz matrix from the famous Viloco Mine in Bolivia. The Cassiterite crystals are large, very sharp and mirror-like and contrast amazingly with the white Quartz matrix. A very aesthetic piece in excellent condition. Location: Viloco Mine,...

This cabinet sized piece features a dense coating of black, lustrous, sharp Cassiterite crystals on a rust-colored matrix from the famous Viloco Mine in Bolivia. The Cassiterite crystals are large, very sharp and mirror-like and contrast amazingly with the matrix. A very aesthetic piece...

A large, lustrous Amethyst crystal with a pristine termination. Exceptional color and crystal formation - no damage. Location: Ametista do Sul, Rio Grande do Sul, Brazil Size: 8.5 x 6.5 x 11 cm

A classic dendritic formation of native Copper crystals densely grouped together. (Dendrite: a crystal aggregate composed of branching skeletal or tree-like formations. Minerals.net) A unique and aesthetic piece of native Copper in excellent condition. Location: Itauz Mine, Djezkazgan, Kazakhstan Size: 5.5 x 1.3 x 9 cm

A vary large, lustrous cluster of intersecting Pyrite cubo-octohedral crystals. The crystals are large and well formed with complex surface textures which make for a unique and aesthetic piece. The metallic luster is mirror-like and exceptional. A great piece in excellent condition. Location: Huanzala Mine,...

An exceptionally large cluster of intersecting lustrous, reddish lenticular Calcite crystals. The Calcite crystals are sharp and striated, with the majority having light to heavy red coloring due to Hematitic inclusions. This is a striking piece with lots of luster! In excellent condition. Location: Daye...

Deep red, uncut, unpolished rough Rhodonite with dark-gray to black Manganese Oxide. Rhodonite is used extensively in the gem trade, and this particular piece can be cut and polished into gemstones or simply enjoyed and displayed for its natural beauty. Location: Minas Gerais, Brazil Size: 10...

Deep red, uncut, unpolished rough Rhodonite with dark-gray to black Manganese Oxide and a vein of green-gray, fibrous Cummingtonite crystals. Rhodonite is used extensively in the gem trade, and this particular piece can be cut and polished into gemstones or simply enjoyed and displayed...

A very large Geode lined with beige Heulandite crystals hosting several intersecting sprays of lustrous, colorless, highly translucent, acicular (needle-like) Scolecite crystals. Simply an amazing piece - the crystal formation, the luster, the contrast, the symmetry - it’s all outstanding. And being protected within...

A large, free-standing Geode lined with peach-colored Heulandite crystals hosting colorless transparent Scolecite crystals along with two clusters of beige Stilbite crystals. The Geode is tall, thin and deep, making for a very dimensional piece. Very aesthetic and in excellent condition. Location: Panvel, Raigad District,...

A very large lustrous piece that hosts numerous large, light-green Apophyllite crystals and beige Stilbite crystals, with numerous colorless Scolecite needles all coated with microcrystalline Apophyllite crystals. The end result - it looks like it just snowed on the piece! An amazing, aesthetic piece...

A beautiful specimen featuring two pristine, lustrous, golden Selenite “petals” on a cluster of darker, smaller Selenite crystals. One of the petals is exceptionally large while the matrix is smaller, letting the Selenite easily become the focal point of the piece. A very aesthetic...

Forming in cavities in Rhyolite, these unique and beautiful Red Agates (also referred to as Crater Agates and Red Fox Agates) are colored deep red from imbedded iron oxides and form in a rounded nodular habit (note that this rich red color is completely...

Forming in cavities in Rhyolite, these unique and beautiful Red Agates (also referred to as Crater Agates and Red Fox Agates) are colored deep red from imbedded iron oxides and form in a rounded nodular habit (note that this rich red color is completely...

Forming in cavities in Rhyolite, these unique and beautiful Red Agates (also referred to as Crater Agates and Red Fox Agates) are colored deep red from imbedded iron oxides and form in a rounded nodular habit (note that this rich red color is completely...

This large piece features botryoidal translucent purple Fluorite with a soft, almost silky luster, on a contrasting brown matrix. The piece is quite stunning and really catches your eye - it’s not a common habit and with all of the varying contours in the...

A very aesthetic piece featuring a couple of focal Amethyst crystals along with a large centered beige Laumontite blade. Both Amethyst crystals have great luster, pristine terminations, and striking purple color, with the deepest purple found at the points. In excellent condition. Location: Piedra Parada,...

A very aesthetic and large piece featuring translucent, compressed rhombohedral crystals of pink Calcite with a soft, silky luster alongside lustrous, colorless needle Quartz on Matrix. I particularly like the contrast of the Calcite next to the Quartz, especially for both mineral’s color and...

A striking piece feature numerous intersecting rosettes of translucent, creamy white, flattened, lenticular Calcite crystals perfectly centered on top of a jet-black cluster of Sphalerite crystals. The silky luster of the Calcite on top of the metallic luster of the Sphalerite, along with the...

A large specimen featuring lustrous pink transparent to translucent Calcite crystals lining a shallow vug. The pink color is due to Cobalt impurities. In addition to the main vug you can see numerous inclusions of Cobalto Calcite throughout the matrix, including a Cobalto Calcite...

A large piece with dense coverage of golden-brown Astrophyllite blades on a contrasting matrix of white Quartzite. The size, contrast and metallic luster make for a unique and aesthetic specimen. In excellent condition. Location: Eveslogchorr Mt., Khibiny Massif, Murmansk Oblast, Russia Size: 6 x 3 x...

Beautiful, transparent and lustrous Veracruz Amethyst crystals on matrix. The piece features a focal Amethyst crystal that rises from the center of the cluster. Great color, clarity, contrast and symmetry. In excellent condition. Location: Piedra Parada, Las Vigas, Veracruz, Mexico Size: 6 x 5.5 x 4.5...

A beautiful specimen of Jacaré Smoky Quartz, that is, classic parallel crystal growth as seen at the top of the specimen. A very unique specimen not only for the Jacaré crystal growth, but for the large flat translucent to transparent smoky plate that the...

A cluster of numerous lustrous, transparent colorless bladed Hemimorphite crystals with translucent to transparent, well formed platy/lenticular Calcite crystals on a dark brown Limonite matrix. Great contrast, crystal formation and symmetry. In excellent condition. Location: Mina Ojuela, Mapimi, Durango, Mexico Size: 7 x 5 x 7...

A very aesthetic piece featuring a large cluster of highly translucent to transparent, well formed platy/lenticular Calcite crystals on a dark brown Limonite matrix. There is a slight reddish-brown tinting to the Calcite crystals, and upon closer inspection (see closeup pic), reddish Hematite inclusions...

A very aesthetic piece featuring a matrix densely coated with miniature, beige Stilbite crystals with a cluster of lustrous, larger light-beige Stilbite crystals at the base, all hosting a crown of transparent, mint-green Apophyllite pseudocubic (rectangular) crystals. Great contrast, color, symmetry and luster. In...

A large piece hosting a dense covering of rare orange hemispherical Heulandite crystal clusters with a secondary layer of beige Stilbite crystals. The color contrast between the Stilbite and Heulandite and the pearly luster of the Stilbite creates a very aesthetic and unique specimen....