Ottrelite

Updated on Jan 07, 2024

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Category Nesosilicate Formula mass 490.11 Crystal habit Granular		Strunz classification 09.AF.85 Color Pistachio green

Formula (repeating unit) (Mn,Fe,Mg)2Al4Si2O10(OH)4

Ottrelite is a form of chloritoid. Its empirical formula is (Mn,Fe,Mg)₂Al₄Si₂O₁₀(OH)₄.

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