Madagascar volcanic provinces linked to the Gondwana break-up: geochemical and isotopic evidences for contrasting mantle sources
Mineralogy Database
Search | About the mineralogy database | Contact| Sample n° 13670 |
Minerals found in the sample
| Mineral | Formula | Category | Subcategory | Importance |
|---|---|---|---|---|
| MONTGOMERYITE | Ca4MgAl4(PO4)6(OH)4•12H2O | phosphates, arsenates and vanadates | phosphates | major |
| VARISCITE | AlPO4•2H2O | phosphates, arsenates and vanadates | phosphates | minor |
Description
| Description: | white montgomeryite needles and pink variscite crust in geode in black rock |
Origin
Country:
Australia
Region:
South Australia
Locality:
Iron Knob
Specification
| Donors | Segnit | Sampling year | |
| Donation year | 1979 | Registration date | |
| Quantity | 1 | Dimension code 1>2>3 | 3 |
| Size | 2 | Quality code 1>2>3 | 1 |
| Holotype | no | Thin section | no |
| Paratype | no | Chemical analysis | no |
| Radioactive | no | X-Ray spectra | no |
