Norbergite

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Physical & Optical Properties

Mohs Hardness 6,0 – 6,5
Specific Gravity 3,177
Refractive Index 1,563 – 1,593
Crystal System Orthorhombic
Luster Vitreous,Resinous
Fracture Uneven,Sub-Conchoidal
Color various
Pleochroism Pale yellow - very pale yellow - colorless

Mohs Hardness

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

Crystal System

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

Value & Market

Price Tier Moderate ($50-500/ct)

About Norbergite

La norbergita es un nesosilicato de magnesio del grupo de la humita que forma cristales tabulares romboédricos de color amarillo, naranja o marrón con lustre vítreo. Se halla en mármoles y skarns dolomíticos metamorfizados, con su localidad tipo en Norberg, Suecia, y yacimientos adicionales en Tanzania, México y los Estados Unidos. Los cristales de calidad gema son raros y de gran interés para los coleccionistas de silicatos de magnesio.

Jewelry Use

Durability 5/10

Science FYI Family

Frequently Asked Questions

What is Norbergite?
La norbergita es un nesosilicato de magnesio del grupo de la humita que forma cristales tabulares romboédricos de color amarillo, naranja o marrón con lustre vítreo. Se halla en mármoles y skarns dolomíticos metamorfizados, con su localidad tipo en Norberg, Suecia, y yacimientos adicionales en Tanza
What is the hardness of Norbergite?
Norbergite has a Mohs hardness of 6.0 to 6.5, making it moderate for use in jewelry.
What color is Norbergite?
Norbergite is primarily Various.
How much does Norbergite cost?
Norbergite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Norbergite?
Norbergite belongs to the Orthorhombic crystal system.

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