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

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 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 large, exceptional cluster of gemmy, transparent complex Calcite crystals on a reddish-brown matrix. Amazing contrast, luster, crystal formation and symmetry. A great piece in excellent condition. Location: Xiang Hua Pu, Hunan Province, China Size: 13.5 x 9 x 8 cm

A pristine, transparent, light amber-colored, doubly terminated, twinned and complete Calcite crystal with Chert matrix attached. A beautiful, highly lustrous and complete twinned Calcite crystal with glass-like transparency. A beautiful piece! Location: Elmwood Mine, Gemmy Pocket, Carthage, Smith County, Tennessee, USA Size: 9.5 x 6 x 4.5...

An exceptionally large and spectacular piece featuring numerous lustrous, milky-white pseudohexagonal (tabular) Calcite crystals up to 6 cm across on a black matrix. Some of the crystals are aligned in parallel formation (often referred to as “poker chip” formation, but these are way too...

This unique and aesthetic piece features two spherical Calcite crystal clusters on a plate of Calcite crystals. These clusters exhibit an “oily” luster with a striking yellow/orange color. No damage. Location: Wenshan, Yunnan Province, China Size: 12 x 7 x 8.5 cm

A large piece featuring clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are transparent to translucent with a slight Hematitic hue and vary in size throughout the piece. Nice luster - even the matrix has a sparkling druzy luster. Great piece in excellent...

A large piece featuring clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are transparent to translucent with a slight Hematitic hue and vary in size throughout the piece. Nice luster - even the matrix has a sparkling druzy luster. Great piece in...

A large piece featuring clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are transparent to translucent with a slight Hematitic hue and vary in size throughout the piece. Nice luster - even the matrix has a sparkling druzy luster. Great piece in...

This piece features 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. In excellent condition. Location: Brandberg, Namibia Size: 5.5 x 5...

This piece features 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. In excellent condition. Location: Brandberg, Namibia Size: 7 x 3.5...

This piece features 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. In excellent condition. Location: Brandberg, Namibia Size: 4 x 3.5...

This piece features 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. In excellent condition. Location: Brandberg, Namibia Size: 4 x 3.5...

This piece features clusters of prismatic hexagonal Calcite crystals on matrix. The crystals are colorless, transparent to translucent, and vary in size.. Good luster - even the matrix has a sparkling druzy luster. In excellent condition. Location: Brandberg, Namibia Size: 4.3 x 2 x 4.5 cm...

This piece features numerous sharp, lustrous transparent Calcite rhombohedrons on a partial Calcite filled Dolomite nodule matrix from Tsumeb. Great contrast and crystal formation. In excellent condition. Location: Tsumeb, Namibia Size: 4.5 x 3 x 4.8 cm

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 stalactitic formation of highly translucent to transparent Calcite scalenohedral crystals. In excellent condition. Location: Buena Tierra Mine, Santa Eulalia, Chihuahua, Mexico Size: 7.5 x 4.5 x 11 cm

A large, rounded cluster of lustrous, pink-beige Calcite scalenohedral crystals, often referred to as “dog-tooth” Calcite crystals. A very aesthetic piece from an unusual locality. In excellent condition. Location: Balchistan Regiion, Pakistan Size: 13 x 11 x 8 cm

A large, rounded radial cluster of lustrous, honey-colored complex scalenohedral Calcite crystals. An impressive and aesthetic grouping with beautiful color, luster and symmetry. In excellent condition. Location: Chihuahua, Mexico Size: 13 x 10 x 6 cm

An exceptionally large piece! The miner that extracted this piece referred to it as a Calcite “lily pad”, with the flat crystalline surface parallel to the water lever in this particular cave. This is a unique find, with excellent crystalline growth and luster and...

A large stacked cluster of highly translucent to transparent golden rhombohedral Calcite crystals - with its golden color, silky luster and stair-stepped form, this is a unique and aesthetic piece. In excellent condition. Location: Saint-Philippe Quarry, Saint-Philipp, Roussillon RCM, Montérégie, Québec, Canada Size: 13 x 8...

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...

This unique piece features two intersecting spherical Calcite crystal clusters. These clusters exhibit an “oily” luster with a striking yellow/orange color. No damage. Location: Wenshan, Yunnan Province, China Size: 12 x 9 x 7 cm

This is an exceptionally large and superb piece that features a Calcite stalactite completely covered with a later generation of large, gemmy, sharp and lustrous scalenohedral Calcite crystals. I have scoured this piece up and down and I cannot even find one little ding...

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...

Really interesting piece: Several small Calcite crystals dusted with microcrystalline Quartz deposited on a plate of Amethyst Quartz crystals, also dusted with microcrystalline Quartz. This makes for incredible luster, great contrast and an unusual yet intriguing, eye-catching piece - I have yet to see...

A large, very aesthetic piece from Tsumeb featuring deep-red, slightly translucent Cuprite crystals hosting a coating of clear, colorless, intersecting Calcite rhombohedrons with inclusions of microcrystalline Malachite, giving the Calcite a light-green hue. An impressive piece with great color and luster. In excellent condition....

A large cluster of lustrous, transparent, golden Fluorite cubes hosting a cluster of white, translucent Calcite scalenohedra perfectly positioned on the highest point. Striking contrast, color, crystal formation and symmetry. In excellent condition. Location: Moscona Mine, Solis, Llanera, Asturias, Spain Size: 9 x 5 x 8...

A large Geode lined with pink-orange Heulandite crystals hosting a large, lustrous, colorless and transparent Calcite rhombohedron. The Calcite rhomb is perfectly centered - an outstanding and aesthetic specimen with great luster, crystal formation, contrast and symmetry. In excellent condition. Location: Nashik, India Size: 13 x...