Mineral description : Norbergite

Norbergite as red dots close to dollaceite (brownish) from Östanmossa.

Mineral class	Silicates : Nesosilicates : Olivine group
Chemical formula	Mg3(OH,F)2(SiO4)
Crystal system
Habitus	Often as small grains or aggregates.
Cleavage	No cleavage.
Hardness	6.5
Density	3.14
Color	Pale red.
Streak
Luster
Description
Occurance
Associates	Tremolite, Dollaseite-(Ce)
Notes
Locations	A rare mineral Östanmossagruvan, Norberg. As red grains with dollaseite and tremolite in limestone. Kallmorberg, Norberg (W of Kapellgruvan). Grayish red with tremolite. Also found in Hackspikgruvan and Johannagruvan, Norberg.

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