Xenotime

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Physical & Optical Properties

Mohs Hardness 4,0 – 5,0
Specific Gravity 4,3 – 5,1
Refractive Index 1,72 – 1,827
Crystal System Tetragonal
Cleavage Distinct
Color various
Birefringence 0,095

Mohs Hardness

Mohs Hardness: 4,0 – 5,0
1 Soft10 Hard

Crystal System

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

Value & Market

Price Tier Budget (< $50/ct)

About Xenotime

Xenotime is a rare yttrium phosphate mineral with high density and a tetragonal prismatic crystal habit, displaying yellowish-brown to reddish-brown or grayish colors with an adamantine to resinous luster. It serves as an important ore of yttrium and heavy rare earth elements and occurs as an accessory mineral in granites, pegmatites, and metamorphic rocks globally. Faceted xenotime gems are extremely rare, prized by collectors for both their rarity and their resemblance to zircon in luster.

Jewelry Use

Durability 3/10

Science FYI Family

Frequently Asked Questions

What is Xenotime?
Xenotime is a rare yttrium phosphate mineral with high density and a tetragonal prismatic crystal habit, displaying yellowish-brown to reddish-brown or grayish colors with an adamantine to resinous luster. It serves as an important ore of yttrium and heavy rare earth elements and occurs as an access
What is the hardness of Xenotime?
Xenotime has a Mohs hardness of 4.0 to 5.0, making it relatively soft for use in jewelry.
What color is Xenotime?
Xenotime is primarily Various.
How much does Xenotime cost?
Xenotime falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Xenotime?
Xenotime belongs to the Tetragonal crystal system.

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