Wax Opal

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Physical & Optical Properties

Mohs Hardness 5.5 – 6.5
Specific Gravity 1.98 – 2.5
Refractive Index 1.37 – 1.52
Crystal System Amorphous
Luster Waxy
Cleavage None
Fracture Conchoidal
Color white
Pleochroism Absent

Mohs Hardness

Mohs Hardness: 5.5 – 6.5
1 Soft10 Hard

Crystal System

Value & Market

Price Tier Budget (< $50/ct)

About Wax Opal

Wax Opal is a variety of common opal with a distinctive waxy to greasy luster and honey-yellow to brownish-yellow color, lacking the play of color characteristic of precious opal. Its warm amber to golden-yellow tones and smooth waxy surface have been likened to beeswax, giving it a warm organic appearance that is fashioned into cabochons and beads. Wax opal occurs in silica-rich sedimentary and volcanic environments and is found in Brazil, Mexico, and Hungary.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Wax Opal?
Wax Opal is a variety of common opal with a distinctive waxy to greasy luster and honey-yellow to brownish-yellow color, lacking the play of color characteristic of precious opal. Its warm amber to golden-yellow tones and smooth waxy surface have been likened to beeswax, giving it a warm organic app
What is the hardness of Wax Opal?
Wax Opal has a Mohs hardness of 5.5 to 6.5, making it moderate for use in jewelry.
What color is Wax Opal?
Wax Opal is primarily White.
How much does Wax Opal cost?
Wax Opal falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Wax Opal?
Wax Opal belongs to the Amorphous crystal system.

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