Table 2. Recorded physical properties of Rose Cottage Cave ochre and their identifying features.
Ochre attributes | Identifying features |
---|---|
Geological type | Shale, mudstone, siltstone, sandstone, snuffbox shale, iron oxide, other |
Brilliance | Mica inclusions present or absent |
Grain size | Texture: clayey, clayey/silty, silty, silty/sandy or sandy |
Hardness | Soft (Mohs Scale 1 and 2), medium (Mohs 3 and 4) and hard (Mohs 5 and above) |
Colour | Munsell colour readings on streaks. Colour groupings are made with a polythetic divisive classificatory program [81] |