General Information:
Chemical Formula:
Mg14(PO4)6(PO3OH,CO3)2(OH)6
Composition:
(Molecular Weight = 1,474.30 gm)
Magnesium 23.08 % Mg
Phosphorus 21.72 % P
Hydrogen 0.71 % H
Carbon 0.62 % C
Oxygen 53.87 % O
Empirical Formula:
Mg14(PO4)6(PO3OH)4.34(CO3)0.76(OH)6
Environment:
Lenses of Precambrian serpentine-magnesite rocks of the Tingelstadtjern depost, Modum terrane, southern Norway. Found in very high-pressure assemblages
IMA Status:
Approved IMA (Dana # Added)
Locality:
TL: Modum, Norway. Dora-Maira massif, near San Giocomo, Vallone di Gilba, Val Varaita, in the Western Alps, Italy, Piemonte, Italy.
Name Origin:
Named as the phosphate analogue of ellenbergerite.
Physical Properties:
Cleavage:
None
Color:
blue.
Density:
3
Diaphaniety:
Translucent to transparent
Habits:
Anhedral Grains - Granular minerals without the expression of crystal shapes, ,
Hardness:
6.5 - Pyrite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
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