Aragonite is the second most common polymorph of natural calcium carbonate. The most common is Calcite. It is significantly less common than Calcite and is formed under a much narrower range of geological conditions. It is an unstable formation compared to calcite and may actually convert to calcite with changes in its environment. It is nearly always a low-temperature, near the surface mineral. It was named after the village of Molina de Aragón, Spain where it was originally found.

Aragonite is a polymorph of calcite, which means that it has the same chemistry as calcite but it has a different structure, and more importantly, different symmetry and crystal shapes. Aragonite’s Crystal Habits include twinned hexagonal prismatic crystals as well as a diverse assortment of thin elongated prismatic, curved bladed, steep pyramidal (spiked) and chisel shaped crystals. A branching tree, coral or worm-like delicate form is called "flos ferri". Aragonite is a mineral found in many species' shell structures. A layered sedimentary marble like formation with Aragonite is called Mexican Onyx and is used for carvings and ornamental purposes. Calcite pseudomorphs of aragonite crystals and formations are common.

31g Aragonite Cluster from Morocco
31g Aragonite Cluster from Morocco
31g Aragonite Cluster from Morocco 31g Aragonite Cluster from Morocco
Item # 2AR0315105

31g Aragonite Cluster from Morocco

$20.00

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Aragonite Crystal Cluster

This well defined quality cinnamon colored crystal cluster is from the Safro Mine in Bou Azzer Morocco.

This specimen weighs 31 grams and measures 1.6 x 1.4 x 1.1 inches (40 x 36 x 28 mm)

36g Aragonite Cluster from Morocco
36g Aragonite Cluster from Morocco
36g Aragonite Cluster from Morocco 36g Aragonite Cluster from Morocco
Item # 3AR0315205

36g Aragonite Cluster from Morocco

$20.00

36g Aragonite Crystal Cluster

This beautiful quality cinnamon colored crystal cluster is from Morocco.

This specimen weighs 36 grams and measures 1.5 x 1.4 x 1.4 inches (39 x 37 x 35 mm)

Aragonite Vug from Socorro New Mexico
Aragonite Vug from Socorro New Mexico
Aragonite Vug from Socorro New Mexico
Aragonite Vug from Socorro New Mexico
Aragonite Vug from Socorro New Mexico
Aragonite_Socorro_NM_1_
Aragonite Vug from Socorro New Mexico Aragonite Vug from Socorro New Mexico Aragonite Vug from Socorro New Mexico Aragonite Vug from Socorro New Mexico Aragonite Vug from Socorro New Mexico Aragonite_Socorro_NM_1_
Item # AR101600001

Aragonite Vug from Socorro New Mexico

$49.00

This rare Aragonite crystalline vug in matrix was found in the mid 1990's in the Magdalena Mountains by a student at the New Mexico Institute of Mining and Technology (New Mexico Tech) in Socorro, New Mexico. An extraordinary and Rare Specimen for your collection!

Measures 2.9 x 2.5 x 2.4 inches (7.5 x 6.4 x 6.1 cm) and weighs 8.5 oz or 0.53 lbs (243g)

28g Aragonite Cluster from Morocco
28g Aragonite Cluster from Morocco
28g Aragonite Cluster from Morocco 28g Aragonite Cluster from Morocco
Item # 8AR01164521

28g Aragonite Cluster from Morocco

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28g Aragonite Crystal Cluster

This beautiful quality clear and cinnamon colored crystal cluster is from Morocco. This specimen has very unique crystal structure and displays nicely!

This specimen weighs 28 grams and measures 1.7 x 1 x 0.9 inches 43 x 27 x 24mm)

28g Aragonite Cluster from Morocco
28g Aragonite Cluster from Morocco
28g Aragonite Cluster from Morocco 28g Aragonite Cluster from Morocco
Item # 10AR01169911

28g Aragonite Cluster from Morocco

$18.00

28g Aragonite Crystal Cluster

This beautiful quality cinnamon colored crystal cluster is from Morocco. This specimen has very unique crystal structure and displays nicely!

This specimen weighs 28 grams and measures 1.3 x 1.1 x 1.1 inches (35 x 30 x 29 mm)

Old Stock Cave Aragonite Stalactite
Old Stock Cave Aragonite Stalactite
Old Stock Cave Aragonite Stalactite
Old Stock Cave Aragonite Stalactite
Old Stock Cave Aragonite Stalactite
Old Stock Cave Aragonite Stalactite
Old Stock Cave Aragonite Stalactite Old Stock Cave Aragonite Stalactite Old Stock Cave Aragonite Stalactite Old Stock Cave Aragonite Stalactite Old Stock Cave Aragonite Stalactite Old Stock Cave Aragonite Stalactite
Item # AR01175223

Old Stock Cave Aragonite Stalactite

$59.00

This rare old stock cave Aragonite stalactite is an extraordinary and Rare Specimen for your collection! We procured this specimen from Wally Marks at the old Highway 50 & 95 Rock Shop in Fallon, NV in the late 1990's. Wally told us he got it from an old collection from the 1930's. We do not know the locale this is from, we only know it is a unique and rare piece for your collection. This has been in our collection for the past 18 years or so.

Measures 4.5 x 2.8 x 2.8 inches (11.6 x 7.3 x 7.2 cm) and weighs 14.4 oz or 0.9 lbs (409g)