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0 item @ $0.00  

Dickinsonite

#PD54280

Dickinsonite

#PD54280
Availability
Sold
Size
13 x 8 x 6 cm - Cabinet 
Formula
K(NaMn)CaNa3AlMn13(PO4)12(OH)2 (RRUFF)
Locality
Smith mine, Alexandria, Grafton Co., New Hampshire, United States
Tagged
phosphate , pegmatite mineral

Large specimen of green, granular Dickinsonite with Microcline and Quartz. It was once in the collection of the late Paul Moore, an expert on phosphate mineralogy.

Dickinsonite

Formula
KNa4Ca(Mn2+,Fe2+)14Al(PO4)12(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Foliated, Micaceous 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
brownish green, green, yellow green 
Streak
white 
Class
Monoclinic - Domatic 
Fracture
Brittle - Uneven 
Hardness
3.5-4 

Data courtesy of Webmineral.

Collection
Don Phillips Collection

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