Pale green glassy double terminated hiddenite crystal (4.0 × 2.0 × 1.2 cm) from Araçuaí, Minas Gerais, Brazil — Photo: Ivar Leidus · CC BY-SA 4.0
Hiddenite
The emerald-green chromium-colored variety of spodumene, first found around 1879 in North Carolina.
Intro adapted from Wikipedia (CC BY-SA).
Hiddenite is a mineral variety of Spodumene, with the chemical formula LiAlSi₂O₆.
It crystallizes in the monoclinic crystal system.
Key properties: Mohs hardness 6.5–7; typically green.
Collections: Gemstones, Rare & Remarkable.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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