Collection: Aegirine (Acmite)

Formula: NaFe³⁺Si₂O₆

Colour: Dark green to greenish black, reddish-brown, black

Luster: Vitreous

Hardness: 6

Specific Gravity: 3.5 - 3.6

Crystal System: Monoclinic

Member of: Clinopyroxene Subgroup > Pyroxene Group

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