ATHENA MINERALOGY |
Mineral: | PUMPELLYITE-(Mg) |
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Formula: | Ca2MgAl2(SiO4)(Si2O7)(OH)2.H2O |
Crystal System: | Monoclinic |
Group: | Pumpellyite group |
IMA Number: | 1973 s.p. |
References: | AM 61 (1976), 176; AM 68 (1983), 1250; AM 77 (1992), 1307; HB2/2 (1995); EJM 30 (2018), 1133 |
Type Locality: | Calumet, Keweenawan copper deposit, Houghton Co, Michigan, USA |
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