Microlite

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Physical & Optical Properties

Mohs Hardness 5,0 – 5,5
Specific Gravity 5,5
Refractive Index 1,993 – 2,02
Crystal System Isometric
Luster Vitreous,Resinous
Cleavage Indistinct
Fracture Sub-Conchoidal
Color various

Mohs Hardness

Mohs Hardness: 5,0 – 5,5
1 Soft10 Hard

Crystal System

Value & Market

Price Tier Budget (< $50/ct)

About Microlite

Microlite is a calcium sodium tantalum oxide pyrochlore-group mineral, typically forming pale yellow, brown, or greenish octahedral crystals with an adamantine to greasy luster in rare-metal granitic pegmatites. It was first described in 1835 from Chesterfield, Massachusetts, USA, and occurs additionally in Minas Gerais, Brazil, and Mozambique. Rare transparent yellow to honey-colored material has been faceted into collector gems notable for their exceptionally high refractive index and dispersion.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Microlite?
Microlite is a calcium sodium tantalum oxide pyrochlore-group mineral, typically forming pale yellow, brown, or greenish octahedral crystals with an adamantine to greasy luster in rare-metal granitic pegmatites. It was first described in 1835 from Chesterfield, Massachusetts, USA, and occurs additio
What is the hardness of Microlite?
Microlite has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Microlite?
Microlite is primarily Various.
How much does Microlite cost?
Microlite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Microlite?
Microlite belongs to the Isometric crystal system.

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