gemstones

Obsidian stone

Obsidian is a naturally occurring volcanic glass formed as an extrusive ign...

Aquamarine Stone

The origin of the word Aquamarine The word Aquamarine is written in Spanish and means "seawate...

Sunstone

Sunstone is a plagioclase feldspar, which when viewed from certain directions exhibit...

Amethyst

Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiatio...

gemstones

Precious or precious stones , precious or refined [1] are different types of polymers composed of tw...