Ultra Rare, once in a generation opportunity - Grandidierite in Rock Matrix Mineral Specimen. A new deposit of grandidierite, considered one of the world’s rarest gems, has been discovered in southern Madagascar. The new deposit is outside the town of Tranomaro, near the original locality of Andrahomana. Named after French naturalist Alfred Grandidier, grandidierite is an extremely rare orthorhombic Mg-Fe aluminous borosilicate. Grandidierite can be polished to be used as a gemstone.
Dimensions (millimeters): 35 x 30 x 15
Dimensions (inches): 1.4 x 1.2 x .6
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