General Information:
Chemical Formula:Ca2B2SiO7
Composition:(Molecular Weight = 241.86 gm)Calcium 33.14 %
CaSilicon 11.61 %
SiBoron 8.94 %
B Oxygen 46.31 %
O Empirical Formula: Ca2B2SiO7
Environment:The boron-dominant analogue of gehlenite. Skarm mineral.
IMA Status:Approved IMA (Dana # Added)
Locality:The Fuka mine, Bicchu-cho, Okayama Prefecture, Japan.
Name Origin:Named after it's locality.
Physical Properties: Cleavage:None
Color:creamy white.
Density:3.3
Habits:Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:5.5 - Knife Blade
Luster:Earthy (Dull)
Streak:white
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