Tigereye
Another name for quartz is rock crystal.
uses of quartz window
Both a quartz watch and an escalator are examples of periodic movement.
The scientific name for quartz is silicon dioxide (SiO2).
The scientific name for quartz crystal is silicon dioxide (SiO2).
Another name for black quartz is "smoky quartz." This variety of quartz has a brown to black coloration, which is caused by natural irradiation of the silicon dioxide. Smoky quartz is often used in jewelry and is believed to have grounding and protective properties in crystal healing practices.
Name is quartz From group quartz
Sio2
NO quartz can not used as it rotate polarization
Citrines belong in the quartz family. Citrine is the name for quartz that is yellow, greenish-yellow, brownish-yellow or orange. The name is derived from "citron" which is the name of a yellow fruit.
chrome diopside and quartz are two different gemstones. Chrome diopside is sometime found along with quartz and hence the name.
silicon