Bloodstone: Meaning, Properties, Care and How to Spot a Fake

Quick answer: bloodstone, also called heliotrope, is a dark green variety of chalcedony (microcrystalline quartz) flecked with red spots of iron oxide. It rates about 6.5 to 7 on the Mohs scale and is durable enough for everyday jewelry. Bloodstone was the March birthstone on the 1912 American birthstone list and remains a traditional alternative to aquamarine. In crystal tradition it is associated with courage, vitality and grounding; these are beliefs, not proven effects. Clean it with warm, soapy water and a soft cloth, and watch for dyed chalcedony, glass and similar-looking jaspers.

Bloodstone is one of the oldest named gemstones still in common use. Its deep green body, scattered with drops of red, has inspired legends for more than two thousand years, from Roman natural history to medieval Christian lore. It was carved into seals and signet rings for centuries, and it still appears on birthstone charts today.

This guide explains what bloodstone is made of, where the name comes from, what it is said to mean, how to care for it and how to make sure you are buying the real thing. For an overview of crystal meanings and care across all stones, start with our guide to crystal meanings, care and spotting fakes.

Sources: Gemological Institute of America (GIA), gem encyclopedia entries for chalcedony and bloodstone, and birthstone history; Mindat.org mineral database (heliotrope); Pliny the Elder, Natural History, Book 37; American Gem Trade Association (AGTA) and Jewelers of America birthstone lists; George Frederick Kunz, The Curious Lore of Precious Stones (1913). Crystal meanings reflect tradition and belief, not proven effects. Checked October 2026.

What Bloodstone Is

Bloodstone is a variety of chalcedony, which is quartz made of crystals far too small to see without a microscope. Chalcedony is tough, takes a good polish and comes in many colors and patterns; agate, carnelian, onyx and chrysoprase are all members of the same broad family.

In bloodstone, the chalcedony is dark green, usually opaque to slightly translucent. The green color typically comes from inclusions of minerals such as chlorite or amphibole. The red spots are iron oxides, most often hematite, scattered through the stone. Where those red spots are absent or replaced with yellow, the material is sometimes sold as plasma, a related green chalcedony.

Bloodstone vs heliotrope

Gemologists often use the name heliotrope for the same material. The terms are largely interchangeable in the trade, although some sellers reserve “bloodstone” for pieces with distinct red spots and “heliotrope” for the green chalcedony in general.

Physical properties

Property	Detail
Mineral	Chalcedony (microcrystalline quartz), SiO2
Color	Dark green with red, sometimes yellow, spots
Mohs hardness	About 6.5 to 7
Luster	Vitreous to waxy when polished
Transparency	Opaque to slightly translucent
Cleavage	None; breaks with a conchoidal or uneven fracture
Main sources	India, plus Brazil, Australia, China and the United States

India has long been the most important source of fine bloodstone, according to GIA. Material from other regions varies in color and in how many red spots it shows.

Where the Names Come From

“Heliotrope”: the sun-turning stone

The older name, heliotrope, comes from Greek words meaning “sun” and “turning.” In Book 37 of his Natural History, written in the first century CE, the Roman author Pliny the Elder described a stone called heliotropium. He reported the belief that, placed in a vessel of water, it turned the reflected sunlight red. Pliny himself was skeptical of many magical claims attached to stones, and he noted this one as something reported by others.

“Bloodstone”: a Christian legend

The name bloodstone grew out of medieval Christian legend. According to one widely repeated story, the stone formed when drops of Christ’s blood fell onto green jasper at the foot of the cross, staining it red. Carved bloodstone pieces depicting religious scenes were made in Europe during the Middle Ages and Renaissance, and George Frederick Kunz recorded many of these traditions in The Curious Lore of Precious Stones in 1913.

Not to be confused with hematite

The word hematite comes from the Greek for “blood,” because the mineral leaves a red streak when scraped. Some older texts used “bloodstone” for hematite as well. Today, bloodstone almost always means the green chalcedony.

Bloodstone as a Birthstone

In 1912, the American National Association of Jewelers (now Jewelers of America) published a standardized birthstone list. Bloodstone was named the birthstone for March, with aquamarine as an alternative. Over the twentieth century, aquamarine became the more popular choice, and today the two are commonly listed together for March, with aquamarine first.

Bloodstone is also associated with Aries and Pisces in some zodiac crystal lists. These pairings vary between sources. Our guide to birthstones by month explains how the modern lists developed and how to care for each stone.

Bloodstone in History

Bloodstone’s toughness and lack of cleavage made it ideal for carving. For centuries it was used for:

• Seals and intaglios. Engraved bloodstone seals were pressed into wax to sign documents.
• Signet rings. Men’s signet rings with flat bloodstone tops remain a classic design.
• Cameos and religious carvings. European carvers used bloodstone for devotional objects.
• Amulets. In many cultures, bloodstone was worn as a protective charm, especially by soldiers. These beliefs are recorded by historians of gem lore, including Kunz.

Bloodstone Meaning in Crystal Tradition

The meanings in this section come from modern crystal practice and older gem lore. They describe symbolism and personal intention, not scientifically proven effects. Bloodstone should never replace medical care.

Courage and strength

Drawing on its long history as a soldier’s amulet, bloodstone is associated in crystal tradition with courage, determination and endurance. Some people carry it during challenging periods as a reminder to keep going.

Vitality and the body

Because of its name and red spots, bloodstone has long been linked symbolically with blood and physical vitality. Historical lore claimed it could stop bleeding, and modern crystal books sometimes associate it with circulation or energy. There is no scientific evidence that bloodstone affects the body, and it should never be used in place of first aid or medical treatment.

Grounding and the heart

Its deep green color links bloodstone with the heart chakra in crystal practice, while its earthy tones are associated with grounding. Practitioners often pair it with other green stones. Our guide to green crystals and their meanings covers similar stones such as green aventurine, malachite and jade.

Caring for Bloodstone

Bloodstone is one of the more practical stones to own. With no cleavage and a hardness near that of quartz, it resists everyday wear well.

Cleaning

• Warm, soapy water and a soft brush or cloth are the safest cleaning method for polished bloodstone. Rinse and dry thoroughly.
• Brief rinsing or soaking is generally fine for untreated stones. Our guide to which crystals cannot go in water explains why chalcedony is among the more water-tolerant stones.
• Ultrasonic cleaners are usually considered safe for untreated chalcedony, but avoid them for dyed, stabilized or fractured pieces, and for jewelry with fragile settings.
• Avoid harsh chemicals, such as bleach, acids or strong household cleaners, which can damage polish, dyes and metal settings.

Storage

Store bloodstone separately from softer stones, which it can scratch, and from harder stones such as sapphire or diamond, which can scratch it. A soft pouch or a lined jewelry box works well.

Heat and light

Untreated bloodstone is stable in normal light. Avoid exposing it to high heat or sudden temperature changes, which can cause any stone to crack.

Cleansing in crystal practice

If you follow cleansing rituals, bloodstone tolerates most common methods, including running water, moonlight and sound. Avoid salt on polished jewelry and metal settings. Our article on how to cleanse crystals compares methods.

How to Spot Fake Bloodstone

Bloodstone is not usually expensive, but imitations and misidentified stones are common, especially in beads and tumbled stones.

Common imitations and look-alikes

Imitation or look-alike	How to recognize it
Dyed chalcedony or agate	Color may be too even or too bright; dye can collect in cracks and drill holes
Dyed howlite or magnesite	Softer stones; often show a fine web of veins and absorb dye unevenly
Glass	May contain round gas bubbles; spots often look painted or too regular
Resin or plastic	Feels warm and light; scratches easily
“African bloodstone”	A different green-and-red jasper or mixed rock from southern Africa; can be attractive but is not the classic Indian bloodstone
Green jasper with red inclusions	Similar look; sometimes sold interchangeably

Checks you can do at home

1. Look at the spots. Natural bloodstone spots are irregular in size and shape and sit within the stone, not on the surface.
2. Check the green. Natural bloodstone is usually a deep, slightly mottled forest green, not a bright or uniform green.
3. Use a loupe. Under 10x magnification, round bubbles point to glass, and dye concentrations in cracks point to dyeing.
4. Wipe with acetone, carefully. Some sellers test beads by gently wiping an inconspicuous spot with a cotton swab dipped in acetone. Dye may transfer to the swab. Do not try this on stones you care about or on jewelry with glued settings.
5. Feel the weight and temperature. Real stone feels cool to the touch and heavier than plastic or resin.

For valuable carved antiques or jewelry, ask a qualified gemologist or independent laboratory to confirm identity.

Bloodstone vs Similar Green Stones

Several green stones are easy to confuse with bloodstone, especially in tumbled form. The comparison below uses general gemological properties described by GIA and Mindat.

Stone	Mineral	Typical look	Key difference
Bloodstone	Chalcedony	Dark green with red spots	Red iron oxide spots
Plasma	Chalcedony	Dark green, few or yellow spots	Lacks distinct red spots
Green jasper	Chalcedony/quartz rock	Opaque green, often banded	Usually no red spots; more opaque
Moss agate	Chalcedony	Translucent with green dendrites	Clear body with moss-like patterns
Nephrite jade	Amphibole	Waxy green, very tough	Different mineral; heavier feel
Green aventurine	Quartz with mica	Green with glittery sparkle	Shows aventurescence, no red spots

When a seller’s label and the stone in hand disagree, trust the visible features and ask for more information.

Common Mistakes With Bloodstone

• Assuming any green stone with red flecks is bloodstone. Dyed stones and other jaspers can look similar.
• Cleaning dyed beads aggressively. Hot water, solvents or ultrasonic cleaners can strip dye from treated pieces.
• Storing it loose with harder gems. Sapphire, ruby and diamond can scratch the polished surface.
• Treating lore as medicine. Historical claims that bloodstone stops bleeding are folklore. Use first aid and seek medical care for any injury.
• Ignoring setting condition. In older signet rings, worn prongs or loose bezels are a bigger risk to the stone than the stone itself.

Buying Bloodstone

• Tumbled stones are inexpensive and are a good way to see natural variation.
• Beads and bracelets are common, but dyed material turns up often; buy from sellers who state the origin and any treatment. Our guide to crystal bracelets covers sizing and stringing materials.
• Signet rings and cabochons should show good polish, well-distributed red spots and no cracks.
• Carvings and antiques can be valuable. Ask for provenance and, where appropriate, an appraisal.

Bloodstone at a Glance

Property	Detail
Also known as	Heliotrope
Mineral family	Chalcedony (quartz)
Colors	Dark green with red spots
Mohs hardness	About 6.5 to 7
Birthstone	Traditional March birthstone (with aquamarine)
Main source	India
Traditional associations	Courage, vitality, grounding (belief)
Care	Warm soapy water; avoid harsh chemicals

Frequently Asked Questions

What is bloodstone good for?

In crystal tradition, bloodstone is associated with courage, vitality and grounding. These are beliefs rather than proven effects. Practically, it is a durable stone that suits rings, seals and everyday jewelry.

Is bloodstone the birthstone for March?

Yes. Bloodstone was named the March birthstone on the 1912 American list, with aquamarine as an alternative. Today the two are usually listed together.

What makes the red spots in bloodstone?

The red spots are iron oxides, mainly hematite, scattered through the green chalcedony.

Can bloodstone go in water?

Untreated bloodstone is generally water tolerant and can be cleaned with warm, soapy water. Avoid soaking dyed or stabilized pieces and jewelry with glued settings.

How can I tell if bloodstone is real?

Natural bloodstone has a deep, mottled green body with irregular red spots inside the stone. Very bright or uniform color, painted-looking spots or bubbles under magnification suggest dye or glass.

Is bloodstone the same as heliotrope?

Yes, the two names usually refer to the same material: dark green chalcedony with red spots. Some sellers use heliotrope for the broader green material.