Purpurite

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Physical & Optical Properties

Mohs Hardness 4.0 – 4.5
Specific Gravity 3.2 – 3.4
Refractive Index 1.85 – 1.92
Crystal System Orthorhombic
Luster Metallic
Cleavage Distinct
Fracture Uneven
Color various
Birefringence 0.07
Pleochroism Strong

Mohs Hardness

Mohs Hardness: 4.0 – 4.5
1 Soft10 Hard

Crystal System

a b c Orthorhombic a ≠ b ≠ c, α = β = γ = 90°

Value & Market

Price Tier Budget (< $50/ct)

About Purpurite

Purpurite is a striking manganese phosphate mineral displaying rich shades of purple, violet, and pinkish-red with a silky to submetallic luster on cleavage surfaces. It forms as an oxidation product of lithiophilite and triphylite in granitic pegmatites and is found in Namibia, Western Australia, Portugal, and the United States. Its vivid purple coloration makes it a prized material for lapidary work and collectors despite its relative softness.

Jewelry Use

Durability 3/10

Science FYI Family

Frequently Asked Questions

What is Purpurite?
Purpurite is a striking manganese phosphate mineral displaying rich shades of purple, violet, and pinkish-red with a silky to submetallic luster on cleavage surfaces. It forms as an oxidation product of lithiophilite and triphylite in granitic pegmatites and is found in Namibia, Western Australia, P
What is the hardness of Purpurite?
Purpurite has a Mohs hardness of 4.0 to 4.5, making it relatively soft for use in jewelry.
What color is Purpurite?
Purpurite is primarily Various.
How much does Purpurite cost?
Purpurite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Purpurite?
Purpurite belongs to the Orthorhombic crystal system.

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