Matter
- Name
- Volcanic tuff (Corent)
- Family
- mineral
- Database
- Experimentalists
- Level
- from laboratory repository
- Origins
- natural terrestrial
- Provider
- IPAG
- Provider reference code
- Tuff (Corent)
- Body name
- Earth
- Terrain type
- mineral subsurface
- Place
- Grande carrière de pouzzolane de Corent (Puy-de-Dôme) , Auvergne-Rhône-Alpes , France
Coordinates
- System
- WGS84
- Position type
- point
- Geolocation
-
Point Latitude Longitude Altitude #1 45.6598° 3.1844° - Comments
- scree at the bottom of the quarry
- Preparation
- raw
- Phase type
- solid
- Component type (group)
- igneous rock (pyroclastic rock or sediment)
- Comments
- Rock type: “tephrite” according to Niggli classification, but very close to the boundary of the basalt/andesite class
- Texture
- cemented granular
- Type of porosity
- open pores
- Oxides
-
Formula $SiO_{2}$ $Al_{2}O_{3}$ $Fe_{2}O_{3}$ $TiO_{2}$ $CaO$ $MgO$ $Na_{2}O$ $K_{2}O$ Mass fraction (%) 43.0 13.4 13.0 4.0 11.82 7.59 2.8 1.76 - Oxides comments
- loss on ignition: 2.25% - average values over the quarry