General Information:
Chemical Formula:AlO(OH)
Composition:(Molecular Weight = 59.99 gm)Aluminum 44.98 %
AlHydrogen 1.68 %
H Oxygen 53.34 %
O Empirical Formula: AlO(OH)
Environment:Metamorphic and sedimentary bauxite ores.
Locality:Common world wide.
Name Origin:From the Greek word "to scatter," referring to the mineral's easy disintegration in the blowpipe flame.
Physical Properties: Cleavage:[010] Perfect, [110] Good
Color:white, greenish gray, grayish brown, colorless, or yellow.
Density:3.3 - 3.5, Average = 3.4
Diaphaniety:Transparent to subtranslucent
Habits:Platy - Sheet forms (e.g. micas)., Tabular - Form dimensions are thin in one direction., Disseminated - Occurs in small, distinct particles dispersed in matrix.
Hardness:6.5-7 - Pyrite-Quartz
Luminescence:None.
Luster:Vitreous - Pearly
Streak:white
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