Andalusite cut stone
Andalusite is an aluminium silicate. It shows spectacular red and green pleochroic colours
Picture No
10703750
Media ID
47586695
Size
1444px x 1772px
(865KB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Aluminium Aluminum Gemstone Mineral Nesosilicate Orthosilicate Pleochroism Rounded Silicate
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