Mineralogy Database
Search | About the mineralogy database | Contact| Sample n° 11553 |
Minerals found in the sample
| Mineral | Formula | Category | Subcategory | Importance |
|---|---|---|---|---|
| TOURMALINE | (Na,Ca)(Mg,Fe,Al)3(Al,Fe,Mg)6(BO3)3Si6O18(OH)4 | cyclosilicates | tourmaline | major |
Description
| Description: | broken and corroded black crystal (7 cm) |
Origin
Country:
Congo (RDC)
Region:
Orientale
Locality:
Mambasa, Senguli
Specification
| Donors | Smith | Sampling year | |
| Donation year | 1968 | 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 |
