Ruby in
biotite schist
Origin: Ambahatraso, Hiosy, Madagascar, Africa
Sample size: 6.5 x 4.5 x 3.5 cm (top/2nd row), 5.6 x 4.3 x 3 cm (3rd row), 5 x
3.5 x 2.5 cm (4th/5th row), 6.2 x 3.5 x 3.2 cm (bottom)
This is a lustrous and doubly terminated crystal of light yellow coloured
corundum. It has been very lightly abraded on the edges from its time in a
small stream.
Origin: Sri Lanka
Sample size: 1.8 x 0.6 x 0.5 cm
Ruby
Origin: Karnataka, India
Sample size: 5.2 x 5 x 3.2 cm
Origin: South Africa
Ex. Mike Keim collection
Sample size: 5.5 x 5 x 2.5 cm
A violet corundum crystal (1.3 x 0.7 cm) perched on a quartz noodle.
Origin: Mysore, India
Ex. Giorgio Spiga collection
Sample size: 2.5 x 2.5 x 1.5 cm
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