Mineral description : Anthophyllite

Suns of anthophyllite in chlorite from Altemark talc mine, Mo i Rana, Norway.

Sprays of anthophyllite in chlorite from Altemark talc mine, Mo i Rana, Norway.

Anthophyllite from Kaveltorp.

Mineral class	Silicates : Inosilicates : Cummingtonite - Anthophyllite group.
Chemical formula	(Mg,Fe)7(OH,Si4O11)2
Crystal system	Orthorombic.
Habitus	Radiating aggregates, needle like crystals and fibrous aggregates.
Cleavage	Perfect in two directions with an angle of 124 degrees, uneven fracture.
Hardness	5.5-6
Density	2.8-3.2
Color	Gray, light green to light brown, white.
Streak	White to gray.
Luster	Vitreous, transparent to opaque.
Description
Occurance	In magnesia rich scarns and metamorphic rocks.
Associates
Notes
Locations	A common mineral in the scarns surrounding many mines in Sweden. Falu mine, Falun, Dalarna. In scarn. Riddarhyttan mining district. Nordmark, Värmland. Västra Silvberg. Altemark talc mine, Mo i Rana, Norway. As white stars in chlorite with magnesite.

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