Pyrite

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Physical & Optical Properties

Mohs Hardness 6.0 – 6.5
Specific Gravity 5.0 – 5.2
Crystal System Isometric
Luster Metallic
Cleavage Indistinct
Fracture Uneven,Conchoidal
Color various
Pleochroism Absent

Mohs Hardness

Mohs Hardness: 6.0 – 6.5
1 Soft10 Hard

Crystal System

Value & Market

Price Tier Moderate ($50-500/ct)

About Pyrite

Pyrite, nicknamed Fool's Gold, is a pale brass-yellow iron sulfide with a bright metallic luster and cubic crystal habit, creating strikingly geometric natural forms. Though long mistaken for gold by prospectors, pyrite has genuine value as a sulfur ore, in the production of sulfuric acid, and as a striking ornamental stone for carvings and jewelry. It occurs globally in sedimentary, metamorphic, and igneous rocks, and has been used decoratively since ancient times.

Jewelry Use

Durability 5/10

Science FYI Family

Frequently Asked Questions

What is Pyrite?
Pyrite, nicknamed Fool's Gold, is a pale brass-yellow iron sulfide with a bright metallic luster and cubic crystal habit, creating strikingly geometric natural forms. Though long mistaken for gold by prospectors, pyrite has genuine value as a sulfur ore, in the production of sulfuric acid, and as a
What is the hardness of Pyrite?
Pyrite has a Mohs hardness of 6.0 to 6.5, making it moderate for use in jewelry.
What color is Pyrite?
Pyrite is primarily Various.
How much does Pyrite cost?
Pyrite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Pyrite?
Pyrite belongs to the Isometric crystal system.

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