Alevrolit (from the Greek. Ἄλευρον - flour and λίθος - stone) - solid sedimentary rock . Formed from silt in the process of lithification .
| Aleurolite | |
|---|---|
 Aleurolite | |
| Physical properties | |
| Colour | Gray, dark gray, brown, red, greenish gray |
| Density | 1.8-2.6 g / cm³ |
| Hardness | up to 6 on the Mohs scale, 460-2200 MPa (according to LA Schreiner) |
Cliffs composed of red-brown siltstones and red sandstones
Content
Composition
It consists of grains of irregular shape, 0.01–0.1 mm in size (according to other data - 0.005–0.05 mm). There are three varieties of siltstone in the form of the constituent particles: coarse-grained, different-grained and fine-grained [1] . The basis of siltstone is quartz , there may also be particles of feldspar , clay minerals , sometimes there are carbonates and iron hydroxides.
Prey
Alevrolit is mined mainly for the production of cement and garden paths. It can be found in coal mines between coal seams.
Notes
- ↑ Alevrolit - The Great Encyclopedia of Oil and Gas . The appeal date is March 7, 2013. Archived March 24, 2013.
Links
- Alevrolit // Great Soviet Encyclopedia : [in 30 t.] / Ch. ed. A. M. Prokhorov . - 3rd ed. - M .: Soviet Encyclopedia, 1969-1978.
- Alevrolit in the Minerals Catalog (rus.)