General Information:
Chemical Formula:
Mg(Ti,Fe+++,Al)(BO3)O
Composition:
(Molecular Weight = 206.10 gm)
Magnesium 11.79 % Mg
Titanium 13.94 % Ti
Aluminum 1.31 % Al
Iron 8.13 % Fe
Boron 10.49 % B
Oxygen 54.34 % O
Empirical Formula:
MgTi0.6Fe3+0.3Al0.1(BO3)O
Locality:
Southwest of Edenville, in the town of Warwick, Orange Co., New York.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
[100] Perfect
Color:
brown or black.
Density:
3.36
Diaphaniety:
Transparent to Subtranslucent
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Crystalline - Fine - Occurs as well-formed fine sized crystals.,
Hardness:
3-4 - Calcite-Fluorite
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Silky
Streak:
bluish black
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