| |
 |
Serandite Mineral Data
|
|
|
General Serandite Information
|
 Chemical Formula: |
Na(Mn++,Ca)2Si3O8(OH) |
| Composition: |
Molecular Weight = 354.69 gm |
| |
Sodium 6.48 % Na 8.74 % Na2O |
| |
Calcium 5.65 % Ca 7.91 % CaO |
| |
Manganese 23.23 % Mn 30.00 % MnO |
| |
Silicon 23.75 % Si 50.82 % SiO2 |
| |
Hydrogen 0.28 % H 2.54 % H2O |
| |
Oxygen 40.60 % O |
| |
______ ______ |
| |
100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaMn2+1.5Ca0.5Si3O8(OH) |
| Environment: |
Alkaline rocks and syenite pegmatites. Forms a series with pectolite. |
| IMA Status: |
Valid Species (Pre-IMA) 1931 |
| Locality: |
Rouma, Los Islands, Guinea. Link to MinDat.org Location Data. |
| Name Origin: |
Named for J. M. Serand, West African mineral collector. |
| Name Pronunciation: |
Serandite + Pronunciation  |
| Synonym: |
ICSD 12130 |
| |
PDF 25-723 |
| |