Mineralpedia Details for Afmite
Afmite
Named for the Association Française de Microminéralogie (AFM), this rare hydrated aluminum phosphate was described by Anthony R. Kampf, Mills, Rossman, Steele, Pluth and Favreau in in 2011 in the European Journal of Mineralogy (23, 269-277). According to the authors "Afmite forms in cockscomb aggregates of diamond-shaped tablets on {001}, ubiquitously contact-twinned on {001}". Afmite has a distinct pearly luster.
- Formula
- Al3(OH)4(H2O)3(PO 4)(PO3OH)·H2O
- Crystal System
- Triclinic
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Afmite from Fumade, Castelnau-de-Brassac, Tarn, Midi-Pyrénées, France
Named for the Association Française de Microminéralogie (AFM), this rare hydrated aluminum phosphate was described by Anthony R. Kampf, Mills, Rossman, Steele, Pluth and Favreau in in 2011 in the European Journal of Mineralogy (23, 269-277). According to the authors "Afmite forms in cockscomb aggregates of diamond-shaped tablets on {001}, ubiquitously contact-twinned on {001}". Afmite has a distinct pearly luster. This specimen is extremly rich with crystals to about 0.3mm.
