Bloodstone (Heliotrope)

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Physical & Optical Properties

Mohs Hardness 6.5 – 7.0
Specific Gravity 2.55 – 2.7
Refractive Index 1.53 – 1.543
Crystal System Trigonal
Luster Waxy,Resinous
Color various
Birefringence 0.003

Mohs Hardness

Mohs Hardness: 6.5 – 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)

Where to Buy Bloodstone (Heliotrope)

Cultural Significance

Birthstone Month 3 (traditional)

About Bloodstone (Heliotrope)

Bloodstone, also known as heliotrope, is a dark green chalcedony variety spotted with vivid red jasper flecks caused by iron oxide inclusions, creating a pattern resembling drops of blood on a green field. Used since antiquity for carved seals and talismans, it was associated with warriors and healing in ancient Rome and medieval Europe, where it was believed to stop bleeding. The finest material comes from India, particularly the Kathiawar Peninsula in Gujarat.

Jewelry Use

Durability 6/10

Science FYI Family

Frequently Asked Questions

What is Bloodstone (Heliotrope)?
Bloodstone, also known as heliotrope, is a dark green chalcedony variety spotted with vivid red jasper flecks caused by iron oxide inclusions, creating a pattern resembling drops of blood on a green field. Used since antiquity for carved seals and talismans, it was associated with warriors and heali
What is the hardness of Bloodstone (Heliotrope)?
Bloodstone (Heliotrope) has a Mohs hardness of 6.5 to 7.0, making it moderate for use in jewelry.
What color is Bloodstone (Heliotrope)?
Bloodstone (Heliotrope) is primarily Various.
How much does Bloodstone (Heliotrope) cost?
Bloodstone (Heliotrope) falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
Is Bloodstone (Heliotrope) a birthstone?
Yes, Bloodstone (Heliotrope) is the March birthstone (traditional).

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