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Mineralpedia Details for Samuelsonite

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Samuelsonite

Samuelsonite

Formula
Ca9Mn2+4Al2(PO4)10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Striated 
Cleavage
Good, None, None 
Luster
Subadamantine 
Color
colorless 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
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Samuelsonite from Palermo mine, Groton, Grafton Co., New Hampshire, United States

Samuelsonite
            from Palermo mine, Groton, Grafton Co., New Hampshire, United States
Special Info
Type Locality

Two yellowish, striated crystal plates each less than 1mm in capsule. Cureton label.

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