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ATHENA

MINERALOGY

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Mineral: BERTHIERINE
Formula: (Fe2+,Fe3+,Mg)2-3(Si,Al)2O5(OH)4
Crystal System: Monoclinic
Group: Kaolinite-Serpentine group. Serpentine subgroup
IMA Number: 1832
References: HB2/1 (1995)
Type Locality: Chazelle, Pontgibaud, Puy-de-Dôme, France
Comments: Polytypes -1M,- 1H

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