Rinkite-(Ce)

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Physical & Optical Properties

Mohs Hardness 5.0
Specific Gravity 3.29 – 3.33
Refractive Index 1.653 – 1.662
Crystal System Monoclinic
Luster Vitreous,Resinous,Greasy
Cleavage Distinct
Fracture Uneven,Conchoidal
Color various
Birefringence 0.009
Pleochroism Slight, in yellow tints.

Mohs Hardness

Mohs Hardness: 5.0
1 Soft10 Hard

Crystal System

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

Value & Market

Price Tier Budget (< $50/ct)

About Rinkite-(Ce)

Rinkite-(Ce) is a rare cerium-bearing sorosilicate mineral that typically displays pale yellow to orange-brown colors with a vitreous to resinous luster. It forms in alkaline igneous rocks and nepheline syenite pegmatites, with notable occurrences at Narsarsuk in Greenland and in the Kola Peninsula of Russia. Specimens are of primary interest to collectors of rare minerals and REE (rare earth element) bearing species.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Rinkite-(Ce)?
Rinkite-(Ce) is a rare cerium-bearing sorosilicate mineral that typically displays pale yellow to orange-brown colors with a vitreous to resinous luster. It forms in alkaline igneous rocks and nepheline syenite pegmatites, with notable occurrences at Narsarsuk in Greenland and in the Kola Peninsula
What is the hardness of Rinkite-(Ce)?
Rinkite-(Ce) has a Mohs hardness of 5.0, making it moderate for use in jewelry.
What color is Rinkite-(Ce)?
Rinkite-(Ce) is primarily Various.
How much does Rinkite-(Ce) cost?
Rinkite-(Ce) falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Rinkite-(Ce)?
Rinkite-(Ce) belongs to the Monoclinic crystal system.

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