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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 Phyllosilicate Trioctahedral mica Biotite |
| Synthetic? | no |
|
Formula Standard element(s) |
K(Fe,Mg)3AlSi3O10(OH,F)2 Si Al Mg K |
| Origin, rock type... | C.M. Taylor |
No images found...
(*) Recommended analysis.
| Analysis 1 | |
|---|---|
| Recommended analysis | |
| Reference | Analysis from C.M. Taylor. |
| Analysis type | unknown |
| Analysis comment | H2O recalculated through mineral formula calculation (original value = 3.53). |
| Wt-% oxide | Wt-% element | Atomic | ||
|---|---|---|---|---|
| 38.330 1.670 15.300 2.250 8.550 19.350 0.110 0.010 0.220 0.210 0.090 10.030 0.030 0.260 4.011 -0.109 | SiO2 TiO2 Al2O3 Fe2O3 FeO MgO MnO ZnO BaO CaO Na2O K2O Rb2O F H2O O=F,Cl | 17.917 1.001 8.098 1.574 6.646 11.669 0.085 0.008 0.197 0.150 0.067 8.326 0.027 0.260 0.449 -0.109 43.947 | Si Ti Al Fe3+ Fe2+ Mg Mn Zn Ba Ca Na K Rb F H O=F,Cl O | 2.780 0.091 1.308 0.123 0.519 2.092 0.007 0.001 0.006 0.016 0.013 0.928 0.001 0.060 1.940 0 12.000 |
| 100.312 | 100.312 | 21.885 | ||
| Analysis 2 | |
|---|---|
| See analysis 1 for recommended analysis | |
| Reference | Analysis from C.M. Taylor. |
| Analysis type | single point |
| Analysis comment | Single point or average microprobe analysis. MgO taken from previous analysis. |
| Wt-% oxide | Wt-% element | Atomic | ||
|---|---|---|---|---|
| 38.370 1.700 15.530 10.360 19.350 0.100 0.050 0.100 10.220 4.116 | SiO2 TiO2 Al2O3 FeO MgO MnO CaO Na2O K2O H2O | 17.935 1.019 8.219 8.053 11.669 0.077 0.036 0.074 8.484 0.461 43.869 | Si Ti Al Fe2+ Mg Mn Ca Na K H O | 2.795 0.093 1.333 0.631 2.101 0.006 0.004 0.014 0.950 2.000 12.000 |
| 99.896 | 99.896 | 21.927 | ||
40-60 mesh.
No reference
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