Dogtooth Calcite is a variety of Calcite that forms as multiple scalenohedral crystals. Dogtooth Calcite is often referred to as Dog-toothed Spar. (Spar is a general term for transparent to translucent, generally light-colored and vitreous crystalline minerals.) Dogtooth Calcite is an unusual variety of calcite and is named "Dogtooth" because the stone itself looks like a large collection of dogs teeth. It has some standard colorings from clear through golden, white, grey, tan, brown and purple to name a few, but also is found some rarer shades.

Dogtooth Calcite is often found in caves as a speleothem growing out of limestone. These caves often have standing water that is seasonal or undisturbed for many years to allow these unique formations to grow. Dogtooth calcite crystals are not limited to caves, but can grow in any open space including veins, fractures, and geodes.

The sharply tooth-shaped crystals typically consist of acute scalenohedrons, triangular crystal faces that ideally form scalene triangles. (In a scalene triangle, all sides and all angles are unequal. An example is a right triangle, but scalene triangles are not always right triangles.) However, modification of these faces is common, and individual crystal faces may have many more than three edges.

Our favorite Dogtooth Calcite specimens come from the Mines in the Santa Eulalia District, Chihuahua, Mexico. The stunning tans, browns, purples and "snow coatings" are fascinating

Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite
Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite Dark Chocolate Dogtooth Calcite
Item # 1DTC12192156

Dark Chocolate Dogtooth Calcite

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This is an outstanding large cabinet specimen of well defined, sharp Scalenohedral Dogtooth Calcite crystals from the Buena Tierra mine, Santa Eulalia District, Aquiles Serdan, Mexico. There is one spot where some of the dogtooth crystals broke off, due to extraction damage. This does not distract from the beauty of this specimen. This is a great piece to display or add to a collection. This specimen from our personal collection was extracted by hand in 2009 by a collector who personally goes to the mines in the Santa Eulalia District of Mexico daily and hand picks only the best and rarest finds from the mines.. Specimens are no longer coming out of this mine, the pocket has been exhausted.

This specimen weighs 44.3 oz or 2.77 lbs (1.256 kg) and measures 5.4 x 4.6 x 3.1 inches (13.7 x 11.7 x 7.8 cm)

Selenite Crystals on Dogtooth Calcite
Selenite Crystals on Dogtooth Calcite
Selenite Crystals on Dogtooth Calcite
Selenite Crystals on Dogtooth Calcite
Selenite Crystals on Dogtooth Calcite
Selenite Crystals on Dogtooth Calcite Selenite Crystals on Dogtooth Calcite Selenite Crystals on Dogtooth Calcite Selenite Crystals on Dogtooth Calcite Selenite Crystals on Dogtooth Calcite
Item # DTC01169985

Selenite Crystals on Dogtooth Calcite

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This is an outstanding large cabinet specimen of Selenite Crystals on well defined, sharp Scalenohedral Dogtooth Calcite crystals from the Buena Tierra mine, Santa Eulalia District, Aquiles Serdan, Mexico. There is one spot where some of the dogtooth crystals broke off, probably due to something in the cave falling on the formation many years ago, and Selenite has started to form over the damaged area. This does not distract from the beauty of this specimen. This unique piece has diametrical growth color variations from the interior that are visible when viewed from the bottom. This is a great piece to display or add to a collection. This specimen from our personal collection was extracted by hand in 2009. Specimens are no longer coming out of this mine, the pocket has been exhausted.

This specimen weighs 27.4 oz or 1.71 lbs (779g) and measures 5.1 x 4.5 x 2.2 inches (13.1 x 11.5 x 5.6 cm)

Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico
Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico
Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico
Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico
Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico
Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico
Item # DTC03167004

Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico

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Rare Purple Dogtooth Calcite Points from Santa Eulalia, Mexico

This is a beautiful purple dogtooth calcite from the San Jose mine, Santa Eulalia district. The deep purple color comes from the growth of fluorite mixing into the brown calcite.

This specimen weighs10 oz or 0.62 lbs (284g) and measures 3.8 x 3 x 1.9 inches (9.8 x 7.7 x 4.9 cm)

Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico
Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico
Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico
Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico
Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico
Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico
Item # DTCNM03160001

Rare Dogtooth Calcite on Pyrite Matrix from SW New Mexico

$49.00

This is very old, rare and unusual find is from a rather remote area in New Mexico. This specimen of Dogtooth Calcite on a Pyrite matrix from our personal collection was found in the Peloncillo (Little Baldy) Mountains, Hidalgo County, in the SW corner of New Mexico in an area known as the “Bootheel”. The southern border of this area is shared between the Mexican States of Chihuahua and Sonora while the eastern border is the Mexican State of Chihuahua. The western border is the State of Arizona.

This piece weighs 5.8 oz or 0.36 lb (165g) and measures 3.1 x 2.2 x 1.3 inches (8 x 5.6 x 3.2 cm)