General Information:
Chemical Formula:
(Ca,Mn++)14Si24O58(OH)8·2(H2O)
Composition:
(Molecular Weight = 2,364.92 gm)
Calcium 20.34 % Ca
Manganese 4.65 % Mn
Silicon 28.50 % Si
Hydrogen 0.51 % H
Oxygen 46.00 % O
Empirical Formula:
Ca12Mn2+2Si24O58(OH)8·2(H2O)
Environment:
Hydrothermal deposits.
Locality:
Lelong Donok gold mine, Benkeelen, Sumatra, Indonesia.
Name Origin:
Named for Samuel John Truscott (1970-1950), English mining geologist.
Physical Properties:
Cleavage:
[0001] Perfect
Color:
white.
Density:
2.35
Diaphaniety:
Transparent to translucent
Habits:
Spherical - Spherical, rounded aggregates., Micaceous - Platy texture with "flexible" plates., Aggregates - Made of numerous individual crystals or clusters.
Luster:
Pearly
Streak:
white
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