ATHENA MINERALOGY |
Mineral: | TVEDALITE |
---|---|
Formula: | (Ca,Mn2+)4Be3Si6O17(OH)4.3H2O |
Crystal System: | Orthorhombic |
Group: | Zeolite group related |
IMA Number: | 1990-027 |
References: | AM 77 (1992), 438; HB2/2 (1995); NM 90-94 (1997); EJM 10 (1998), 1037 |
Type Locality: | Vevya quarry, Tvedalen, Vestfold Co., Norway |
Comments: | A possible beryllosilicate zeolite (?) |
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