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FIGMAS
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First entry: 01/02/16 || Status: pending
| General information | |
|---|---|
|
Mineral class
Sub-class Group Species |
Silicate Tectosilicate Feldspar Anorthite |
| Synthetic? | no |
|
Formula Standard element(s) |
CaAl2Si2O8 Al Ca |
| Origin, rock type... | Great Sitkin Island, AK; Smithsonian Institute |
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(*) Recommended analysis.
| Analysis 1 | |
|---|---|
| Analysis type | unknown |
| Analysis comment | MgO < 0.02 |
| Wt-% oxide | Wt-% element | Atomic | ||
|---|---|---|---|---|
| 44.000 0.030 36.030 0.620 19.090 0.530 0.030 | SiO2 TiO2 Al2O3 FeO CaO Na2O K2O | 20.567 0.018 19.069 0.482 13.644 0.393 0.025 46.140 | Si Ti Al Fe2+ Ca Na K O | 2.031 0.001 1.961 0.024 0.944 0.047 0.002 8.000 |
| 100.330 | 100.338 | 13.010 | ||
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