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Mineralpedia Details for Danalite

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Danalite

Danalite

Danalite, is beryllium bearing, and found typically in tin-beryllium skarns, but also found in NYF style pegmatites as is this occurence.

Formula
Be3Fe2+4(SiO4)3
Crystal System
Isometric 
Crystal Habit
Massive 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Greasy 
Color
brown, brownish black, grayish yellow, pink, reddish brown 
Streak
gray white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
5.5-6 
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Danalite from Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway

Danalite
            from Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway

Red crystals to 4mm with characteristic triangular cross-sections scattered throughout K-spar amazonite matrix. Danalite, is beryllium bearing, and found typically in tin-beryllium skarns, but also found in NYF style pegmatites as is this occurence.

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