allophane मीनिंग इन हिंदी

उदाहरण वाक्य

1. In 1816, with Friedrich Stromeyer, he described the mineral allophane.
2. A copper containing variety " cupro-allophane " has been reported.
3. It is characteristic of soils high in such minerals as allophane, developed from volcanic ash.
4. "' Allophane "'is an amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid.
5. Associated minerals include hydrobasaluminite, hydroargillite, meta-aluminite, allophane, gibbsite, gypsum and aragonite.
6. Allophane can alter to form halloysite under resilicating aqueous conditions and can alter to form gibbsite under desilicating conditions.
7. Andosols are usually defined as soils containing high proportions of glass and amorphous colloidal materials, including allophane, imogolite and ferrihydrite.
8. It may be associated with cerussite, plattnerite, azurite, malachite, pyromorphite, mimetite, beudantite, duftite, crocoite, gibbsite, allophane and limonite.
9. It has also been found as prismatic crystals up to 1 mm in length at the El Dragon Mine, Potosi, Bolivia in association with allophane, chalcomenite, clinochalcomenite and barite.
10. Allophane is a weathering or hydrothermal alteration product of volcanic glass and feldspars and sometimes has a composition similar to kaolinite but generally has a molar ratio of Al : Si = 2.