Eudidymite

Eudidymite is a mineral, tape silicate from the amphibole group. The name derived from two Greek words – “eu” and “didymis”, meaning “well twinned”, due to the frequent occurrence of twinned crystals of eudidymites.

Eudidymite is a transparent or translucent mineral with a variety of colors. Has a hardness on the Mohs scale – 6. It occurs in the form of tabular crystals of monoclinic system with frequent appearance of twins. Eudidymite opened in 1887 in Norway.

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