आयोलाइट इसके अंग्रेजी अर्थ का उदाहरण

The mineralogical difference is that the rocks of Saucer group commonly contain Felspar and Biolite but no chlorite whereas those of Sakoli group contain invariably chlorite, rarely Biolite and no Felspar.

Public high schools in California In mathematics, in particular algebraic topology, a p-compact group is (roughly speaking) a space that is a [version of a Prasiolite (also known as green quartz, green amethyst or vermarine) is a green variety of quartz, a silicate mineral chemically silicon dioxide.

Since 1950, almost all natural prasiolite has come from a small Brazilian mine, but it has also been mined in Lower Silesia in Poland.

Naturally occurring prasiolite has also been found in the Thunder Bay area of Canada.

, the only mine producing prasiolite is in Brazil but even that is almost mined out.

Most prasiolite sold is used in jewellery settings, where it can substitute for far more expensive precious gemstones.

It is a rare stone in nature; artificially produced prasiolite is heat treated amethyst.

Currently, almost all prasiolite on the market results from a combination of heat treatment and ionizing radiation.

Green quartz is sometimes incorrectly called green amethyst, which is not an acceptable name for the material, the proper terminology being prasiolite.

It is against Federal Trade Commission Guidelines to call prasiolite "green amethyst".

The word prasiolite literally means "scallion green-colored stone" and is derived from Greek πράσον prason meaning "leek" and λίθος lithos meaning "stone".

Natural prasiolite is a very light, translucent green.

– Prasiolite on Mindat.