Musgravite

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Physical & Optical Properties

Mohs Hardness 0.0
Specific Gravity 3.62 – 3.68
Refractive Index 1.719 – 1.739
Crystal System Trigonal
Color various
Birefringence 0.014

Mohs Hardness

Mohs Hardness: 0.0
1 Soft10 Hard

Crystal System

a a a Trigonal (Rhombohedral) a = b = c, α = β = γ ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

About Musgravite

Musgravite is an exceptionally rare beryllium magnesium aluminum oxide in the taaffeite mineral group, forming grayish-green, violet, or greenish-gray transparent crystals with a vitreous luster. It was first discovered in the Musgrave Ranges of South Australia in 1967 and subsequently found in Antarctica, Greenland, Madagascar, Tanzania, and Sri Lanka. For many years, fewer than ten faceted examples were known, making musgravite one of the rarest gem minerals in existence; fine specimens command extraordinary collector prices.

Jewelry Use

Durability 1/10

Science FYI Family

Frequently Asked Questions

What is Musgravite?
Musgravite is an exceptionally rare beryllium magnesium aluminum oxide in the taaffeite mineral group, forming grayish-green, violet, or greenish-gray transparent crystals with a vitreous luster. It was first discovered in the Musgrave Ranges of South Australia in 1967 and subsequently found in Anta
What is the hardness of Musgravite?
Musgravite has a Mohs hardness of 0.0, making it relatively soft for use in jewelry.
What color is Musgravite?
Musgravite is primarily Various.
How much does Musgravite cost?
Musgravite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Musgravite?
Musgravite belongs to the Trigonal crystal system.

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