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M & W Minerals

Walter R. Kellogg


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Mineral Specimen #6218    Tourmaline with Iridescent Conchoidal Fracture

Minas Gerais, Brazil

1.3 x 0.8 x 0.7 cm


Here is a little curiosity, a yellow/green colored Tourmaline crystal with a flat termination at one end. The other end is quite unusual in that it has a concave conchoidal fracture which exhibits rainbow like diffractions.

Condition: Good

Flaws: There are internal cleaves which are perpendicular to the C axis.

This mineral is also found in the following galleries: Minerals From Brazil | Tourmaline | Minerals Priced Under 25 Dollars