ATHENA MINERALOGY |
Mineral: | CIPRIANIITE |
---|---|
Formula: | Ca4[(Th,U)Ca]2Al(Be0,5▢1,5)[B4Si4O22](OH)2 |
Crystal System: | Monoclinic |
Group: | Hellandite group |
IMA Number: | 2001-021 |
References: | AM 87 (2002), 739; AM 87 (2002), 745; MR 2 (2004), 176; EJM 30 (2018), 1037-1043; EJM 31 (2019), 799 |
Type Locality: | Tre Croci, Vico volcanic region, Vetralla, Viterbo, Lazio (Latium), Italy |
Comments: | ▢ = vacancy |
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