Zircon

Name:

Zircon

Composition:
Zirconium Silicate, ZrSiO4
Hardness:
7.5
Colours:
Can be colorless crystals or in shades of green, gray, red, blue, yellow, or brown.
Use:
Gemstone - hyacinth, jacinth, jargon.
Countries where found:
Sri Lanka, Madagascar, Norway, and New South Wales, Australia.
Summary of formation:
Zircon occurs as an accessory mineral in all types of igneous rock. Zircon is abundant in silica-rich rocks; it crystallizes in the tetragonal system .