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Aragonite

Aragonite was named in 1797 after the village of Molina de Aragón in Spain. The varieties of aragonite are pea, hot spring and iron flower. It is an abundant mineral occurring mainly in the cavities of igneous rocks, but is also formed by settling from solutions. More info

Aragonite was named in 1797 after the village of Molina de Aragón in Spain. The varieties of aragonite are pea, hot spring and iron flower. It is an abundant mineral occurring mainly in the cavities of igneous rocks, but is also formed by settling from solutions.

  • Chemical Formula: CaCO3
  • Molecular Weight: 100.09 gm
  • IMA Status: Valid Species (Pre-IMA) 1790
  • Locality: Aragon (Spain).

Composition:

  • Calcium: 40,04 %  , CaO 56,03%
  • Carbon: 12 %  , CO43.97
  • Oxygen: 47,96 %  

Physical Properties:

  • Cleavage: {010} 

  • Color: Colorless, White, Gray, Yellowish white, Reddish white

  • Density: 2,93

  • Diaphaneity: Transparent to translucent

  • Fracture: Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.

  • Habit: Columnar - Forms columns

  • Habit: Fibrous - Crystals made up of fibers

  • Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.

  • Hardness: 3.5-4

  • Luminescence: Fluorescent and phosphorescent, Short UV=green,yellow white, Long UV=green, yellow pink.

  • Luster: Vitreous (Glassy)

  • Streak: white

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