Zircon

ZrSiO4

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Zircon is the oldest mineral found on Earth, with some crystals dating back 4.4 billion years. It is an important accessory mineral in igneous rocks and a key mineral for geochronology (U-Pb dating). The gem variety comes in many colors.

Système Cristallin Tetragonal
Classe Minérale 09 Silicates
Dureté Mohs 6.5-7.5
Densité 3.93-4.73
Couleur Colorless, yellow, brown, red, green, blue
Éclat Adamantine
Trait Colorless
Clivage Poor {110}, {111}
Cassure Conchoidal
Transparence Transparent
Habitus Cristallin Prismatic with pyramidal terminations

Dureté Mohs

Mohs Hardness: 6,5 – 7,5
1 Soft10 Hard

Système Cristallin

Tetragonal

Explore on Science FYI

ChemFYI
Zirconium (Zr) Primary zirconium ore (ZrSiO₄)
ChemFYI
Silicon (Si) Nesosilicate framework
GemFYI
Zircon Natural gemstone (not cubic zirconia)

Frequently Asked Questions

What is the hardness of Zircon?
Zircon has a Mohs hardness of 6.5-7.5.
What crystal system does Zircon belong to?
Zircon crystallizes in the Tetragonal crystal system.
What color is Zircon?
Zircon is typically Colorless, yellow, brown, red, green, blue.
What type of luster does Zircon have?
Zircon exhibits a Adamantine luster.
What is the chemical formula of Zircon?
The chemical formula of Zircon is ZrSiO4.