Aragonite is a carbonate mineral, one of the two common, naturally occurring, crystal forms of calcium carbonate, CaCO3 (the other form being the mineral calcite). It is formed by biological and physical processes, including precipitation from marine and freshwater environments. Aragonite's crystal lattice differs from that of calcite, resulting in a different crystal shape, an orthorhombic system with acicular crystals. Repeated twinning results in pseudo-hexagonal trillings. Therefore, although Aragonite crystallizes in the orthorhombic system, virtually all its crystals are hexagonal shaped.

Aragonite may be columnar or fibrous, occasionally in branching stalactitic forms. Calcite forms trigonal crystals. The type location for aragonite is Molina de Aragón (Guadalajara, Spain), 25 km from Aragon for which it was named in 1797. Read More...



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Aragonite-01- Molina de Aragón Spain
Large crystals of purplish Aragonite. This is an exceptionally large and well crystallized mult..
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Aragonite-02- Molina de Aragón Spain
Large crystals of purplish Aragonite with reddish iron inclusions. This is an excepti..
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Aragonite-03- Molina de Aragón Spain
Purple Aragonite crystal rarely seen on matrix found in the '70s at Molina de Aragón, Guadalajara, C..
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Aragonite-04- Grand Atlas Morocco
Aragonite, near Sefrou Mine, Grand Atlas, Morocco 4.1 x 3.3 x 3.0 cm (Miniature) ..
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Aragonite-05- Grand Atlas Morocco
Cluster of orange brown Aragonite, near Sefrou Mine, Grand Atlas, Morocco 3.7 x 3.1 x 3.3 cm..
$10.00 USD
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Aragonite-07- Molina de Aragón Spain
An aesthetic Aragonite floater showing various lustrous, pseudo-hexagonal crystals with a purpl..
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Aragonite-08- Molina de Aragón Spain
A single elongated, colorless, pseudo-hexagonal Aragonite crystal with brown inclusions giving ..
$15.00 USD
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