RockVault
Zircon

Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)

tetragonaluncommonSilicates

Zircon

ZrSiO4

This image displays a well-formed, transparent to translucent, reddish-brown Zircon crystal with a distinct adamantine luster, characteristic of gem-quality specimens.

Zircon Physical Properties

Mohs Hardness

7.5

Crystal System

tetragonal

Luster

adamantine

Streak Color

white

Cleavage

indistinct/poor on {110}

Fracture

conchoidal

Specific Gravity

4.65

Colors

colorless, yellow, orange, red, brown, green, blue

Transparency

transparent

Type Locality

Thabeikyin, Mogok, Sagaing District, Mandalay Division, Burma (Myanmar)

Mineral Group

Silicates

Uses

gemstone, refractory material, source of zirconium, geochronology

Associated Minerals

quartz, feldspar, mica, apatite, magnetite

Rarity

uncommon

Geological Context

Zircon is a common accessory mineral found in various igneous rocks (especially felsic), metamorphic rocks, and as detrital grains in sedimentary rocks due to its high durability. It forms during the late stages of magma crystallization or during high-grade metamorphism.