Chlorapatite

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Physical & Optical Properties

Mohs Hardness 5,0
Specific Gravity 3,17 – 3,18
Refractive Index 1,665 – 1,667
Crystal System Hexagonal
Luster Vitreous
Cleavage Poor
Color various
Pleochroism Weak to moderate; in pale colors.

Mohs Hardness

Mohs Hardness: 5,0
1 Soft10 Hard

Crystal System

a a c Hexagonal a = b ≠ c, α = β = 90°, γ = 120°

Value & Market

Price Tier Budget (< $50/ct)

About Chlorapatite

Chlorapatite is the chlorine-dominant end member of the apatite mineral group, forming transparent to translucent hexagonal crystals typically in colorless, yellow, or pale green tones in skarn deposits, metamorphic rocks, and igneous rocks. Fine faceted specimens are occasional collector curiosities, though chlorapatite is rarely separated from other apatite varieties in the gem trade. Notable occurrences are found in South Africa and Mexico.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Chlorapatite?
Chlorapatite is the chlorine-dominant end member of the apatite mineral group, forming transparent to translucent hexagonal crystals typically in colorless, yellow, or pale green tones in skarn deposits, metamorphic rocks, and igneous rocks. Fine faceted specimens are occasional collector curiositie
What is the hardness of Chlorapatite?
Chlorapatite has a Mohs hardness of 5.0, making it moderate for use in jewelry.
What color is Chlorapatite?
Chlorapatite is primarily Various.
How much does Chlorapatite cost?
Chlorapatite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Chlorapatite?
Chlorapatite belongs to the Hexagonal crystal system.

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