Calcite Minerals

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4.25" Natural Calcite Crystal Gemstone Mineral Specimen #RMI536 4.25" Natural Calcite Crystal Gemstone Mineral Specimen #RMI536

4.25" Natural Calcite Crystal Gemstone Mineral Specimen #RMI536

Bold and beautiful, this Calcite specimen comes to us all the way from Morocco! This dazzling specimen contains stunning terminations accompanied by a bright and vibrant shade of orange and...
$68.97 $33.99
4.5" Natural Calcite Crystal Gemstone Mineral Specimen #RMI533 4.5" Natural Calcite Crystal Gemstone Mineral Specimen #RMI533

4.5" Natural Calcite Crystal Gemstone Mineral Specimen #RMI533

Fall in love with this gorgeous Calcite specimen! This dazzling piece comes to us from Morocco and features various eye-catching terminations. Along with these terminations is a rich deep shade...
$74.97 $36.99
Quartz Stalactite Cave Calcite Mineral Specimen 2.9 Lb #RMI488 Quartz Stalactite Cave Calcite Mineral Specimen 2.9 Lb #RMI488

Quartz Stalactite Cave Calcite Mineral Specimen 2.9 Lb #RMI488

This Quartz Stalactite Cave Calcite Mineral Specimen from Madhya Pradesh, India is a beautiful addition to any collection. The specimen weighs 2.9 Lb and is composed of Quartz, Stalactite Cave,...
$447.99 $298.00
Calcite Chalcedony Mineral Specimen 15.5 Oz #RMI484 Calcite Chalcedony Mineral Specimen 15.5 Oz #RMI484

Calcite Chalcedony Mineral Specimen 15.5 Oz #RMI484

Introducing the Calcite Chalcedony Mineral Specimen 15.5 Oz, a high-grade specimen brought to you from Nashik Mines in India. This beautiful mineral, with its combination of Calcite and Chalcedony, has...
$222.99 $148.00
Calcite Crystal Mineral Specimen #RMI214 Calcite Crystal Mineral Specimen #RMI214

Calcite Crystal Mineral Specimen #RMI214

This Calcite Crystal Mineral Specimen packs immense beauty into a small package. It has an impressive 2.1 Oz weight and measures 2.5" in length, 2.5" in height, and 2" in...
$42.97 $20.99
Calcite Crystal Mineral Specimen #RMI211 Calcite Crystal Mineral Specimen #RMI211

Calcite Crystal Mineral Specimen #RMI211

This 3.1 Oz Calcite Crystal Mineral Specimen is a stunning natural specimen with a length of 3.25 inches, a height of 3.25 inches, and a width of 1.75 inches. With...
$46.97 $22.99
Natural Calcite Crystal Gemstone Mineral Specimen 2.6 Oz Natural Calcite Crystal Gemstone Mineral Specimen 2.6 Oz

Natural Calcite Crystal Gemstone Mineral Specimen 2.6 Oz

This lovely Calcite mineral specimen comes to us all the way directly from India! It is composed of two crystals with cloudy inclusions that lay upon a cloud-like bed of...
$42.97 $20.99
Natural Calcite Crystal Gemstone Mineral Specimen 0.7 Oz Natural Calcite Crystal Gemstone Mineral Specimen 0.7 Oz

Natural Calcite Crystal Gemstone Mineral Specimen 0.7 Oz

This stunning Calcite mineral specimen comes to us all the way from India! It contains a couple of crystals that formed together in order to produce this lovely piece. With...
$26.97 $12.99
Calcite Crystal Collectible Mineral Specimen (4.25") Calcite Crystal Collectible Mineral Specimen (4.25")

Calcite Crystal Collectible Mineral Specimen (4.25")

This stunning Calcite mineral specimen comes to us all the way from India! It contains a lovely and vibrant shade of white. Held within this single crystal are various cloud...
$34.97 $16.99
Natural Calcite Gemstone Crystal Mineral Specimen Natural Calcite Gemstone Crystal Mineral Specimen

Natural Calcite Gemstone Crystal Mineral Specimen

This dazzling Calcite mineral specimen piece comes to us directly from Maharashtra, India. It contains an almost ombre effect with the white bottom fading out into a clear yet slightly...
$26.97 $12.99
Calcite Crystal Mineral Specimen #RMI225 Calcite Crystal Mineral Specimen #RMI225

Calcite Crystal Mineral Specimen #RMI225

This Calcite Crystal Mineral Specimen # RMI225 is a unique addition to any collection. Weighing in at 1.3 oz and measuring 4" in length, 4" in height, and 0.75" in...
$38.97 $18.99
Natural Calcite Crystal Gemstone Mineral Specimen 2.5 Oz Natural Calcite Crystal Gemstone Mineral Specimen 2.5 Oz

Natural Calcite Crystal Gemstone Mineral Specimen 2.5 Oz

This stunning Calcite mineral specimen is derived from Maharashtra, India. The crystal sits upon a lovely bed of white stone. The inclusion found within is a mix of clear and...
$30.97 $14.99
Natural Calcite Gemstone Crystal Mineral Specimen 1 Oz Natural Calcite Gemstone Crystal Mineral Specimen 1 Oz

Natural Calcite Gemstone Crystal Mineral Specimen 1 Oz

This eye-catching Calcite mineral specimen piece comes to us all the way from India! It is composed of a multitude of crystals that formed together in order to produce this...
$34.97 $16.99
Natural Calcite Gemstone Crystal Mineral Specimen 1.4 Oz Natural Calcite Gemstone Crystal Mineral Specimen 1.4 Oz

Natural Calcite Gemstone Crystal Mineral Specimen 1.4 Oz

This stunning Calcite mineral specimen comes to us all the way from India! It is composed of a variety of crystals that form together in order to produce this lovely...
$30.97 $14.99
Natural Calcite Gemstone Crystal Mineral Specimen 1.2 Oz Natural Calcite Gemstone Crystal Mineral Specimen 1.2 Oz

Natural Calcite Gemstone Crystal Mineral Specimen 1.2 Oz

This gorgeous Calcite mineral specimen comes to us all the way from India! It is composed of a multitude of crystals that form together in order to create this dazzling...
$30.97 $14.99
Calcite Crystal Mineral Specimen #RMI226 Calcite Crystal Mineral Specimen #RMI226

Calcite Crystal Mineral Specimen #RMI226

This Calcite Crystal Mineral Specimen is a must-have for any collector. It has impressive dimensions of 2.5" long, 2.5" tall, and 1" wide with a weight of 1.3 oz. This...
$34.97 $16.99
Calcite Crystal Mineral Specimen #RMI213 Calcite Crystal Mineral Specimen #RMI213

Calcite Crystal Mineral Specimen #RMI213

This Calcite Crystal Mineral Specimen #RMI213 is a beautiful addition to any collection. It features a natural Calcite Crystal and weighs 0.7 ounces, with a 2" length, 2" height, and...
$30.97 $14.99
Calcite Crystal Mineral Specimen #RMI228 Calcite Crystal Mineral Specimen #RMI228

Calcite Crystal Mineral Specimen #RMI228

This eye-catching Calcite Crystal Mineral Specimen (#RMI228) has a weight of 1.2 Oz and length, height, and width of 2.75", 2.75", and 1" respectively. Its brilliant colors and luminescence make...
$34.97 $16.99
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Calcite is a very common rock-forming mineral. It comes in a variety of shapes and colors. It is also an important part of many rocks. Calcite is an important component of limestone and marble. Calcite is known for its variety of crystals and beautiful expansion. Some geologists consider it a "ubiquitous mineral." This calcite is formed by the accumulation of calcium-containing water in caves or between limestone. Calcite is a major component of stalactites and stalagmites. It is also responsible for the "cave pearls" that are found in some caves.

Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite". Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C, and vaterite is even less stable. Calcite is thermodynamically stable only at temperatures below 550 °C. Above this temperature, it decomposes into calcium oxide and carbon dioxide, with release of carbon dioxide.

All members of the calcite group crystallize in a triangular arrangement. Although calcite can produce beautiful crystals, it is usually very large. Calcite specimens may be present in metamorphic deposits, igneous rocks, and hydroelectric veins. It is used in agricultural soil treatment, manufacturing aggregates, pigments, pharmaceuticals, construction materials, and much more.

Crystal healers consider calcite as a stone used for purification. In addition, calcite is a spiritual stone that helps to open higher consciousness and mental abilities. They also believe that calcite cleanses and improves the function of the kidneys, pancreas, and spleen. Crystal healers also believe that calcite balances the absorption of calcium within the body and strengthens all the joints.