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ATHENA

MINERALOGY

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Mineral: MESSELITE
Formula: Ca2[Fe2+(PO4)2(H2O)2]
Crystal System: Anorthic (Triclinic)
Group: Kröhnkite supergroup. Fairfieldite group
IMA Number: 1890
References: Zts K. Min. 17 (1890), 93; AM 40 (1955), 829; HB4 (2000); EJM 36 (2024), 604; MM 89 (2025), 736
Type Locality: Messel, Darmstadt, Hessen, Germany
Messelite 4 cm
Grube Messel, Darmstadt, Hessen, Germany (Type locality)
Photo and Coll. P. Perroud
See also: athena.unige.ch -> mineral pictures

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