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Mineralpedia Details for Alpersite

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Alpersite

Alpersite

Formula
(Mg,Cu2+)SO4ยท7H2
Crystal System
Monoclinic 
Crystal Habit
Efflorescences 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
2.5 
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