Hollandite
From Infogalactic: the planetary knowledge core
| Hollandite | |
|---|---|
| 240px | |
| General | |
| Category | Mineral |
| Formula (repeating unit) |
Ba(Mn4+6Mn3+2)O16 |
| Strunz classification | 4.DK.05a |
| Dana classification | 7.9.1.1 |
| Identification | |
| Color | Silvery-grey to greyish |
| Crystal system | Monoclinic |
| Cleavage | Distinct / Good, Prismatic |
| Mohs scale hardness | 4 to 6 |
| Density | 4.95[1] |
Hollandite is an oxide mineral. It was discovered in the Kajlidongri Mine Jhabua district, Madhya Pradesh. It was described by Lewis Leigh Fermor and named after Thomas Henry Holland , the director of the Geological Survey of India.[2]
