| |
 |
Schorl Mineral Data
|
|
|
General Schorl Information
|
 Chemical Formula: |
NaFe++3Al6(BO3)3Si6O18(OH)4 |
| Composition: |
Molecular Weight = 1,053.38 gm |
| |
Sodium 2.18 % Na 2.94 % Na2O |
| |
Aluminum 15.37 % Al 29.04 % Al2O3 |
| |
Iron 15.91 % Fe 20.46 % FeO |
| |
Silicon 16.00 % Si 34.22 % SiO2 |
| |
Boron 3.08 % B 9.91 % B2O3 |
| |
Hydrogen 0.38 % H 3.42 % H2O |
| |
Oxygen 47.08 % O |
| |
______ ______ |
| |
100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaFe2+3Al6(BO3)3Si6O18(OH)4 |
| Environment: |
Granites, diorites, gabbro pegmatites, greisens, skarns and quartz veins. |
| IMA Status: |
Valid Species (Pre-IMA) 1524 (Dana # Changed from 61.3.1.10) |
| Locality: |
Sonnenberg, Bodenmais and Spessart, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
Old name of unknown origin. |
| Name Pronunciation: |
Schorl  |
| Synonym: |
ICSD 74180 |
| |
PDF 43-1464 |
| |
Tourmaline |
| |