| |
 |
Apjohnite Mineral Data
|
|
|
General Apjohnite Information
|
 Chemical Formula: |
MnAl2(SO4)4•22(H2O) |
| Composition: |
Molecular Weight = 889.49 gm |
| |
Manganese 6.18 % Mn 7.98 % MnO |
| |
Aluminum 6.07 % Al 11.46 % Al2O3 |
| |
Hydrogen 4.99 % H 44.56 % H2O |
| |
Sulfur 14.42 % S 36.00 % SO3 |
| |
Oxygen 68.35 % O |
| |
______ ______ |
| |
100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+Al2(SO4)4•22(H2O) |
| Environment: |
Found as efflorescences. |
| IMA Status: |
Valid Species (Pre-IMA) 1838 |
| Locality: |
Maputo (Delagoa) Bay, near Maputo (Louren�co Marques), Mozambique. Link to MinDat.org Location Data. |
| Name Origin: |
Named for James Apjohn (1796-1886), Professor of Chemistry and Mineralogy, Trinity College, Dublin, Ireland. |
| Name Pronunciation: |
Apjohnite + Pronunciation  |
| Synonym: |
ICSD 14038 |
| |
PDF 29-886 |
| |