Chemical Formula:
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(K,Na,Ca)1-2(Si,Al)8O16·6(H2O) |
Composition:
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Molecular Weight = 664.63 g |
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Hydrogen |
1.82 % |
H |
16.26 % |
H2O |
0.00 % |
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Oxygen |
52.96 % |
O |
0.00 % |
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0.00 % |
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Aluminum |
12.18 % |
Al |
23.01 % |
Al2O3 |
0.00 % |
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Silicon |
21.13 % |
Si |
45.20 % |
SiO2 |
0.00 % |
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Potassium |
5.88 % |
K |
7.09 % |
K2O |
0.00 % |
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Calcium |
6.03 % |
Ca |
8.44 % |
CaO |
0.00 % |
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100.00 % |
|
100.00 % |
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Empirical Formula:
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KCaAl3Si5O16·6(H2O) |
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Environment:
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Common zeolite in volcanic rocks, ore veins, diagenetically altered rhyolitic vitric tuffs, saline lake deposits, and ocean floor sediments |
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Locality:
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Capo di Bove, south of Rome, Italy.. Link to
MinDat.org
Location Data.
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Name Origin:
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Named after William Phillips (1775-1829), English mineralogist and founder of the Geological Society of London |
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Synonym:
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Cross stone |
| Abrazite |
| Wellsite-Ba |
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