Tantalite

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Physical & Optical Properties

Mohs Hardness 6,0 – 6,5
Specific Gravity 5,18 – 8,2
Refractive Index 2,19 – 2,457
Crystal System Orthorhombic
Luster Submetallic
Cleavage Distinct
Fracture Sub-Conchoidal
Color various
Birefringence 0,083
Pleochroism Sometimes strong

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 Tantalite

La tantalita es un mineral de óxido de hierro, manganeso y tantalio, principal mena del tantalio, un metal esencial en la electrónica moderna. Sus cristales son negros a marrón oscuro con un intenso brillo submetálico a resinoso. Los especímenes con buena forma cristalina son apreciados por los coleccionistas. Forma una serie continua con la columbita. Los principales yacimientos se hallan en Australia, Brasil, República Democrática del Congo, Nigeria y Mozambique.

Jewelry Use

Durability 5/10

Science FYI Family

Frequently Asked Questions

What is Tantalite?
La tantalita es un mineral de óxido de hierro, manganeso y tantalio, principal mena del tantalio, un metal esencial en la electrónica moderna. Sus cristales son negros a marrón oscuro con un intenso brillo submetálico a resinoso. Los especímenes con buena forma cristalina son apreciados por los cole
What is the hardness of Tantalite?
Tantalite has a Mohs hardness of 6.0 to 6.5, making it moderate for use in jewelry.
What color is Tantalite?
Tantalite is primarily Various.
How much does Tantalite cost?
Tantalite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Tantalite?
Tantalite belongs to the Orthorhombic crystal system.

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