Uvite-Dravite – Blue Tourmaline from the Kokcha Valley, Badakshan

$40.00

1 in stock

Description

This tourmaline is from the Kokcha Valley in Badakshan, Afghanistan. It is in the uvite-dravite series of tourmaline and different sources list as being in both. It is a silicate and it contains the elements Na, Mg, Al, Si, O, B, and H. This specimen consists of a fuchsite matrix that hosts a somewhat rare blue tourmaline  The crystals have trigonal-pyramidal and tabular morphologies. The prism faces are complex and irregular due to their growth which was concurrent with the growth of the surrounding matrix. They are somewhat translucent near the surface under bright light.  It measures 1 7/8 x 1 1/2 x 1 1/4 inches or 48 x 38 x 32 mm.

Additional information

Weight6 oz

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