Black tourmaline on quartz matrix
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Black tourmaline incrusted in a quartz matrix.
This spectacular rough piece consists of a large bar of black tourmaline among other adjacent smaller ones incrusted in a quartz matrix. In addition, small mica formations can be observed.
Approximate measurements: 19 cm x 25 cm x 9 cm and weighs about 5.3 kilograms.
It is a piece in this rough, and given its nature to handle it, pieces of quartz and tourmaline can be detached without altering their qualities.