ATHENA MINERALOGY |
Mineral: | TVRDYITE |
---|---|
Name: | Tvrdýite |
Formula: | Fe2+Fe3+2Al3(PO4)4(OH)5(H2O)4.2H2O |
Crystal System: | Monoclinic |
Group: | Beraunite group |
IMA Number: | 2014-082 |
References: | MM 79 (2015), 51-58; MM 80 (2016), 1077; AM 102 (2017), 920 |
Type Locality: | Huber stock (open pit), Krásno (Schönfeld), Horní Slavkov (Schlaggenwald), Karlovy Vary, Cechy (Bohemia), Czech Republic |
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