Esquema molecular
Aragonite
CaCO3
Description
Aragonite is a carbonate mineral that is a polymorph of calcite. It forms in low-temperature, high-pressure environments, often associated with biogenic deposits.
Chemical composition
Chemical formula
CaCO3
Classification
carbonatos
Crystal system
ortorrómbico
Luster
Vítreo, a veces resinoso
Streak
Blanca
Density
2.94 g/cm³
Temperatura de fusión
825 °C
Mohs Scale — 3.5/10
Referencia: Fluorita
Color
Incoloro, blanco, amarillento, a veces teñido de violeta, azul o verde
Usos
Uso cotidiano
Decoration, jewelry, ornaments, and in aquariums to stabilize pH.
Uso industrial
Calcium source, agricultural supplements, and the chemical industry.
Similar minerals
Compare species
| Properties | Aragonite | Calcite |
|---|---|---|
| Chemical formula | CaCO3 | CaCO₃ |
| Classification | Carbonates | Carbonates |
| Crystal system | ortorrómbico | trigonal |
| Hardness | 3.5 | 3 |
| Density | 2.94 g/cm³ | 2.71 g/cm³ |
| Luster | Vítreo, a veces resinoso | Vitreous |
| Streak | Blanca | White |
| Cleavage | Unknown | Unknown |
| Transparency | Unknown | Unknown |
Similar minerals: Calcita · Estroncianita · Witherita
Derivatives and uses
Metallic calcium, calcium oxide.
Geographic distribution
Extraction countries: España, México, Marruecos, Estados Unidos, Chequia
Galería de la comunidad
Periodic table
Contains elements: Ca · C · O
Carbon
#6 · Nonmetals
