Catapleiite

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Physical & Optical Properties

Mohs Hardness 5,0 – 6,0
Specific Gravity 2,72
Refractive Index 1,59 – 1,629
Crystal System Hexagonal
Luster Vitreous
Cleavage Perfect
Color various
Birefringence 0,039

Mohs Hardness

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

Crystal System

a a c Hexagonal a = b ≠ c, α = β = 90°, γ = 120°

Value & Market

Price Tier Budget (< $50/ct)

About Catapleiite

Catapleiite is a rare zirconium silicate mineral forming thin, tabular, or plate-like crystals in yellow, yellowish-brown, or pale yellowish-green tones, primarily in nepheline syenites. Notable occurrences include Mont Saint-Hilaire in Quebec and the Langesundsfjord region of Norway. Faceted specimens are extremely uncommon and valued by collectors of unusual zirconium minerals, alongside zircon and eudialyte.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Catapleiite?
Catapleiite is a rare zirconium silicate mineral forming thin, tabular, or plate-like crystals in yellow, yellowish-brown, or pale yellowish-green tones, primarily in nepheline syenites. Notable occurrences include Mont Saint-Hilaire in Quebec and the Langesundsfjord region of Norway. Faceted specim
What is the hardness of Catapleiite?
Catapleiite has a Mohs hardness of 5.0 to 6.0, making it moderate for use in jewelry.
What color is Catapleiite?
Catapleiite is primarily Various.
How much does Catapleiite cost?
Catapleiite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Catapleiite?
Catapleiite belongs to the Hexagonal crystal system.

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