Adamite

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Physical & Optical Properties

Mohs Hardness 3.5
Specific Gravity 4.3 – 4.68
Refractive Index 1.708 – 1.773
Crystal System Orthorhombic
Luster Vitreous
Cleavage Distinct
Fracture Conchoidal
Color various
Birefringence 0.031
Pleochroism Nil

Mohs Hardness

Mohs Hardness: 3.5
1 Soft10 Hard

Crystal System

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

Value & Market

Price Tier Budget (< $50/ct)

About Adamite

Adamite is a vivid yellow-green to green zinc arsenate mineral that forms lustrous, fan-shaped crystal clusters on limonite matrix. It is found primarily in the oxidized zones of zinc ore deposits in Mexico, Chile, and Greece, with the finest specimens coming from the Ojuela Mine in Durango, Mexico. Its bright, translucent color and distinctive wedge-shaped crystals make it a popular mineral specimen.

Jewelry Use

Durability 2/10

Science FYI Family

Frequently Asked Questions

What is Adamite?
Adamite is a vivid yellow-green to green zinc arsenate mineral that forms lustrous, fan-shaped crystal clusters on limonite matrix. It is found primarily in the oxidized zones of zinc ore deposits in Mexico, Chile, and Greece, with the finest specimens coming from the Ojuela Mine in Durango, Mexico.
What is the hardness of Adamite?
Adamite has a Mohs hardness of 3.5, making it relatively soft for use in jewelry.
What color is Adamite?
Adamite is primarily Various.
How much does Adamite cost?
Adamite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Adamite?
Adamite belongs to the Orthorhombic crystal system.

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