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Earth lab datasite

Topaz
Silicate waterworn crystal
hydrous aluminosilicate
Al2 Si O4 (OH F)2
Scale bar = 1 centimetre
cleavage: Perfect
crystal system: Orthorhombic
hardness 8.0
relative density 3.5 - 3.6
Cairngorm dist., Aberdeenshire
24 C 9