A large Geode lined with pink-orange Heulandite crystals with a partial coating of miniature, colorless Stilbite crystals, hosting a large (4.5 cm) translucent, soft-yellow Calcite rhombohedron. The Heulandite and Stilbite is colorful with a sparkling luster, while the Calcite rhomb has a satin luster....

A very large aesthetic specimen hosting numerous radiating flower-like clusters of Calcite scalenohedra. The Calcite crystals are soft-white with minor reddish Hematite inclusions and have a pearly luster. Even the matrix, with colorless Quartz, lustrous Galena and Chalcopyrite, adds to the overall aesthetics of...

A very large specimen featuring lustrous, white crystalline Quartz hosting a large, sharp, translucent, cream-colored Calcite crystal. The Calcite crystal is prismatic with a flattened triangular termination (fun trivia stuff), has a smooth, velvety luster, and is perfectly centered. A nice piece with great...

A large, aesthetic specimen of lustrous, brilliant-black twinned Sphalerite crystals with partial overgrowth of translucent, off-white druzy Calcite crystals. The Sphalerite crystals are well-formed and sharp with a brilliant metallic luster. A beautiful piece in excellent condition. Location: Trepca Mine, Mitrovica, Kosovo Size: 10 x 6.5...

A pristine, transparent, gemmy, lustrous, perfectly-terminated golden Calcite crystal hosting blood-red Realgar crystals near the base. A beautiful and very aesthetic specimen in excellent condition. Location: Shimen County, Chanhde Prefecture, Hunan Province, China Size: 7 x 5.5 x 5 cm

An unusual Geode filled with predominantly Quartz crystals with some Calcite crystals closer to the opening. The  Quartz crystals are miniature and transparent, thus a sparkly luster, whereas the Calcite crystals are more off-white in color and lustrous due to the larger crystal faces....

A geode lined with lustrous, transparent colorless scalenohedral Calcite crytals. The crystals are sharp and quite large for a geode, and contrast nicely with the golden-yellow matrix. A beautiful, showy piece in excellent condition. Location: Mibladen, Midelt, Khenifra Province, Meknes-Tafilalet Region, Morocco Size: 14.3 x 12.3...

This very large plate features numerous large, transparent, lustrous mint-green modified cubic crystals of Fluorite. Interspersed with the Fluorite crystals are numerous white, translucent, flattened rhombohedral Calcite crystals with pearly luster. The clarity and transparency of the Fluorite crystals is superb - you can...

An amazing piece that starts with a colorless Quartz matrix with numerous miniature Quartz crystals, partially covered with miniature light-yellow scalenohedral Calcite crystals and finally topped off by a stunning, lustrous, transparent blue-purple cubo-octahedral Fluorite crystal with stepped octahedral faces. Even the bottom hosts...

This piece features two lustrous, translucent to transparent complex crystals of golden Calcite on matrix. A great piece in excellent condition. Location: Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana, USA Size: 6 x 3.8 x 2.8 cm

A large cluster of elongated colorless/white translucent scalenohedral Calcite crystals on a Chlorite dusted Quartz matrix. The contrast between the satin luster and clear/white color of the Calcite against the dark-green (practically black) color and matte luster of the Chlorite coated Quartz is about...

A cluster of dark-amber colored scalenohedral Calcite crystals in parallel orientation. An old specimen with great color and unique parallel crystal formation. Overall in good condition. Location: Tri-State District, Joplin, Jasper County, Missouri, USA Size: 6 x 4.8 x 6.5 cm

A striking specimen of Calcite from the famous Elmwood Mine. This piece hosts numerous doubly-terminated, transparent, light-yellow lustrous scalenohedral Calcite crystals - on both sides - on a limestone matrix. When this specimen is displayed upright, the piece is capped off with a cluster...

This very aesthetic piece features a dark matrix hosting four elongated, highly translucent, pristine stepped Calcite crystals all with “nail-head” terminations. This is a unique piece with great contrast and symmetry. In excellent condition. Location: Irai, Alto Uruguai Region, Rio Grande do Sul, Brazil Size: 8 x...

A very large plate completely covered with golden Calcite crystals. Rising out of this layer of small Calcite crystals are a few larger Calcite crystals, with the main large golden Calcite crystal measure 6 cm in length! Amazing piece with no damage. Location: Picher, Oklahoma,...

A specimen of deep-yellow, transparent, lustrous Fluorite crystals hosting a trio of sharply formed, highly translucent, colorless Calcite crystals with minor white Dolomite crystals. This piece has great contrast, especially with the trio of Calcite crystals sitting on top along with the Dolomite scattered...

A large, beautiful transparent to translucent rhombohedral Calcite crystal, 3.5 cm on edge, with intersecting Stilbite crystals on a matrix of snow-white microcrystalline Quartz, with minor Apophyllite. The Calcite crystal has a satin luster  and because of the transparency, the intersecting Stilbite crystals can...

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...

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...

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...

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 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....

This extra-large specimen features numerous clusters of highly translucent, tangerine-colored, flower-like scalenohedral Calcite crystals on matrix. I especially like the contrast of the smaller vertical flower-like clusters with the larger, horizontal singular crystals on the base. The color, the luster and the aesthetics makes...

A beautiful specimen of intergrown, cream-colored Calcite rhombohedrons with a dusting of vibrant green, microcrystalline Dioptase. It’s as if the Calcite has been sprinkled with green glitter - just amazing! This is a spectacular specimen and in excellent condition. Location: Tsumeb Mine, Tsumeb, Otjikoto Region,...

A beautiful piece featuring translucent Mangano Calcite crystals in plumose aggregates. Plumose: “Featherlike aggregate in which many small crystals protrude out of a long, slender one.” (Minerals.net) These pink Calcite crystal formations are an uncommon occurrence, yet these flower-like crystal aggregates are absolutely amazing...

A beautiful piece featuring translucent Mangano Calcite crystals in plumose aggregates. Plumose: “Featherlike aggregate in which many small crystals protrude out of a long, slender one.” (Minerals.net) These pink Calcite crystal formations are an uncommon occurrence, yet these flower-like crystal aggregates are absolutely amazing...

A huge piece that is entirely covered with miniature Calcite scalenohedra. What’s make this piece even more interesting is that these numerous Calcite crystals are clearly arranged into several flower-like clusters, emanating from a center point and radiating outward. Absolutely beautiful! The soft-white color,...

This specimen hosts a cluster of lavender Calcite scalenohedra on a layer of slightly amethystine crystalline Quartz. It’s unusual to see a specimen with such contrasting halves - the large, lavender Calcite crystals across from the crystalline Quartz - like a line was drawn...

This is a beautiful specimen of numerous light pink Mangano Calcite Rhombohedra. The piece appears to be very lightly dusted with a microcrystalline Calcite, giving it a satin luster. Bear with me on this thought: When I’ve displayed this piece next to countless shiny...