Girasol

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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
Cleavage None
Fracture Conchoidal,Splintery
Color various
Pleochroism Absent

Mohs Hardness

Mohs Hardness: 5.5 – 6.5
1 Soft10 Hard

Crystal System

Value & Market

Price Tier Budget (< $50/ct)

About Girasol

Girasol is a variety of hyalite opal or transparent to translucent quartz that exhibits a soft, hazy, floating blue sheen or adularescence reminiscent of moonstone, with a milky internal glow. The name derives from the Italian for "sunflower," referencing the way light seems to rotate within the stone. Fine girasol opal from Mexico and transparent girasol quartz from Brazil are fashioned into cabochons that display their characteristic luminous billowing effect.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Girasol?
Girasol is a variety of hyalite opal or transparent to translucent quartz that exhibits a soft, hazy, floating blue sheen or adularescence reminiscent of moonstone, with a milky internal glow. The name derives from the Italian for "sunflower," referencing the way light seems to rotate within the sto
What is the hardness of Girasol?
Girasol has a Mohs hardness of 5.5 to 6.5, making it moderate for use in jewelry.
What color is Girasol?
Girasol is primarily Various.
How much does Girasol cost?
Girasol falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Girasol?
Girasol belongs to the Amorphous crystal system.

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