Rutilated Quartz

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Physical & Optical Properties

Mohs Hardness 7.0
Specific Gravity 2.65
Refractive Index 1.544 – 1.553
Crystal System Trigonal
Luster Vitreous
Cleavage None
Fracture Conchoidal
Color various
Birefringence 0.009
Dispersion 0.013

Mohs Hardness

Mohs Hardness: 7.0
1 Soft10 Hard

Crystal System

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

Value & Market

Price Tier Moderate ($50-500/ct)

About Rutilated Quartz

Rutilated Quartz is a variety of clear or smoky quartz containing needle-like inclusions of golden, silver, or reddish rutile (titanium dioxide) that create spectacular Venus-hair patterns within the transparent stone. These inclusions, ranging from fine parallel threads to scattered golden needles, make every stone unique and are considered a feature rather than a flaw. Brazil is the primary source, and rutilated quartz is widely used in cabochons, beads, and faceted stones.

Jewelry Use

Durability 7/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Rutilated Quartz?
Rutilated Quartz is a variety of clear or smoky quartz containing needle-like inclusions of golden, silver, or reddish rutile (titanium dioxide) that create spectacular Venus-hair patterns within the transparent stone. These inclusions, ranging from fine parallel threads to scattered golden needles,
What is the hardness of Rutilated Quartz?
Rutilated Quartz has a Mohs hardness of 7.0, making it excellent for use in jewelry.
What color is Rutilated Quartz?
Rutilated Quartz is primarily Various.
How much does Rutilated Quartz cost?
Rutilated Quartz falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Rutilated Quartz?
Rutilated Quartz belongs to the Trigonal crystal system.

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