Tags: Chemical Substance, Mineral.
Prasiolite green-quartz or vermarine is a green form of quartz a silicate mineral chemically silicon dioxide. Prasiolite is one of several quartz varieties.Since 1950 almost all natural prasiolite has come from a small Brazilian mine but it is also seen in Lower Silesia in Poland. Naturally occurring prasiolite is also found in the Thunder Bay area of Canada.Prasiolite can also be found spelled praziolite.