aerinite

Aerinite () is a bluish-purple inosilicate mineral. It crystallizes in the monoclinic system and occurs as fibrous or compact masses and coatings. It has a dark, vitreous luster, a specific gravity of 2.48 and a Mohs hardness of 3.

Key facts

Mineral.name: Aerinite
Mineral.image: Aerinite2.jpg
Mineral.imagesize: 260px
Mineral.caption: Aerinite from Spain
Mineral.category: Inosilicates
Mineral.IMAsymbol: Aer
Mineral.strunz: 9.DB.45
Mineral.system: Trigonal
Mineral.symmetry: P3c1
Mineral.unit cell: a = 14.690(15), b = 16.872(15) c = 5.170(15) [Å]; β = 94.75°; Z = 1
Mineral.color: Blue to blue-green
Mineral.habit: fibrous
Mineral.mohs: 3
Mineral.luster: vitreous
Mineral.streak: bluish white
Mineral.diaphaneity: translucent
Mineral.gravity: 2.48
Mineral.opticalprop: Biaxial (−)

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Wikidata facts

Image: RM415-aerinita-estopanya.jpg

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Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 9.DB.45
Commons category: Aerinite
IMA Mineral Symbol: Aer
chemical formula: (Ca,Na)₆(Fe³⁺,Fe²⁺,Mg,Al)₄(Al,Mg)₆Si₁₂O₃₆(OH)₁₂(CO₃)·12H₂O

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It is a low-temperature hydrothermal phase occurring in zeolite facies alteration of dolerites. Associated minerals include prehnite, scolecite and mesolite.