General Information:
Chemical Formula:
SrAl3(PO4)2(OH)5·(H2O)
Composition:
(Molecular Weight = 461.56 gm)
Strontium 18.98 % Sr
Aluminum 17.54 % Al
Phosphorus 13.42 % P
Hydrogen 1.53 % H
Oxygen 48.53 % O
Empirical Formula:
SrAl3(PO4)2(OH)5·(H2O)
Name Origin:
Named after the province of Goyaz, Brazil.
Physical Properties:
Cleavage:
[0001] Perfect
Color:
lemon yellow, pink, or colorless.
Density:
3.16 - 3.28, Average = 3.22
Diaphaniety:
Transparent
Habits:
Blocky - Rhombohedral - Crystal shape resembles rhomohedrons., Disseminated - Occurs in small, distinct particles dispersed in matrix.,
Hardness:
4-5 - Fluorite-Apatite
Luminescence:
None.
Luster:
Vitreous - Greasy
Streak:
white
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