Montebrasite

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Physical & Optical Properties

Mohs Hardness 5,5 – 6,0
Specific Gravity 2,98 – 3,1
Refractive Index 1,578 – 1,646
Crystal System Triclinic
Luster Vitreous
Cleavage Perfect
Fracture Uneven,Sub-Conchoidal
Color various
Birefringence 0,02

Mohs Hardness

Mohs Hardness: 5,5 – 6,0
1 Soft10 Hard

Crystal System

a b c Triclinic a ≠ b ≠ c, α ≠ β ≠ γ ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

About Montebrasite

La montebrasite es la variedad hidroxilada del mineral amblygonita, con la que es difícil distinguirla a simple vista: forma cristales prismáticos o tabulares de color blanco, amarillo pálido o verde claro con lustre vítreo a aperlado. Se halla en pegmatitas graníticas ricas en litio junto con minerales como el espodumeno y la ambligonita, siendo Brasil y Portugal sus principales fuentes. El material transparente facetado es escaso y muy valorado por los coleccionistas de fosfatos de litio.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Montebrasite?
La montebrasite es la variedad hidroxilada del mineral amblygonita, con la que es difícil distinguirla a simple vista: forma cristales prismáticos o tabulares de color blanco, amarillo pálido o verde claro con lustre vítreo a aperlado. Se halla en pegmatitas graníticas ricas en litio junto con miner
What is the hardness of Montebrasite?
Montebrasite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Montebrasite?
Montebrasite is primarily Various.
How much does Montebrasite cost?
Montebrasite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Montebrasite?
Montebrasite belongs to the Triclinic crystal system.

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