Bloodstone (Heliotrope)

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Also called heliotrope, bloodstone is a dark green chalcedony scattered with vivid red flecks of iron-oxide jasper, a pattern early observers likened to drops of blood on a green field. It belongs to the trigonal quartz group and measures 6.5 to 7.0 on the Mohs scale, durable enough for rings and carved seals. Used since antiquity for signets and talismans, it was linked in ancient Rome and medieval Europe with warriors and healing, and was once believed capable of staunching bleeding. The finest material comes from India, particularly the Kathiawar Peninsula of Gujarat. A moderately priced semi-precious stone, bloodstone is a traditional birthstone for March.

Physical & Optical Properties

Category Semi-Precious Gems

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

Value & Market

Price Tier Moderate ($50-500/ct)

Where to Buy Bloodstone (Heliotrope)

Blue Nile Fine jewelry retailer

James Allen Gemstone jewelry

Brilliant Earth Ethically sourced gems

Amazon Wide selection

Links may earn a commission at no extra cost to you.

Cultural Significance

Birthstone Month 3 (traditional)

About Bloodstone (Heliotrope)

La heliotropo (o piedra sangre) es una variedad de calcedonia verde oscura, salpicada de manchas y puntos de color rojo sangre de jaspe con óxido de hierro. Su nombre griego 'helios' (sol) y 'trepein' (girar) hace referencia a la antigua creencia de que, sumergida en agua, hacía que el sol se volviera rojo. En la Edad Media se creía que las manchas rojas representaban la sangre de Cristo, convirtiéndola en una gema de gran valor religioso. Ha sido utilizada para tallar sellos, amuletos y camafeos desde la Antigüedad. Los mejores ejemplares provienen de India, Brasil y Australia.