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Tourmaline (chromian)

#PD34359

Tourmaline (chromian)

#PD34359
Availability
Sold
Price
$290.00
Size
2.3 x 2 x 1.3 cm - Thumbnail 
Formula
A(D3)G6(T6O18)(BO3)3X3Z (RRUFF)
Locality
Mong Hsu, Shan State, Burma
Tagged
melange

A complete hemihedral chrome tourmaline terminated on both end. As you can see both sides, however, have detachment points from matrix. The color is a gorgeous deep gemmy emerald green.

Tourmaline

Formula
Ca,Na,K[(Al,Fe2+,Fe3+,Li,Mg2+,Mn2+)3](Al,Cr3+,Fe3+,V3+)6(Si6O18)(BO3)3(O,OH)3(F,O,OH) 
Crystal System
Trigonal 
Fracture
Irregular/Uneven-Conchoidal 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection

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