ATHENA MINERALOGY |
Mineral: | STILBITE-Ca |
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Formula: | (Ca0,5,Na,K)9[Al9Si27O72].28H2O |
Crystal System: | Monoclinic |
Group: | Zeolite group. Stilbite subgroup |
IMA Number: | 1997 s.p. |
References: | L 5 (1984), 5; HB2/2 (1995); EJM 10 (1998), 1037; Phys. Chem. Min. 48 (2021), 4 |
Type Locality: | Berufjord or Helgustadir, Island |
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