The single most reliable way to identify real hematite is the streak test: rub the stone across unglazed porcelain and it leaves a cherry-red to reddish-brown mark, even when the polished surface looks almost black. Add a weight check, a look at the lustre, and a scan for common imitations, and you can tell genuine hematite from glass, dyed stone and manufactured lookalikes with reasonable confidence at home.
This guide focuses on practical checks for a finished bead bracelet, where you cannot grind a sample into powder or break a bead in half. Every test below is non-destructive or only mildly abrasive, and we flag the limits of each one.
Why the streak test comes first
Hematite is iron(III) oxide, Fe2O3, and its powdered form is red. That is the origin of the name: the Greek haima means blood. When you drag the mineral across a harder, unglazed white ceramic surface, it sheds a fine powder and leaves a distinctive cherry-red to reddish-brown line, regardless of whether the specimen itself is steel-grey, black or mirror-polished. It is a diagnostic property, not a coincidence.
Almost every dark lookalike fails this test. Black obsidian and black glass leave a white or colourless streak, or simply scratch the tile without depositing colour. Black onyx and dyed agate leave a pale or white streak. Imitations made from coated plastic or resin leave either no mark or a smear of coating. A magnetite-rich synthetic may leave a dark streak rather than a red one. So a clear red-brown streak is strong evidence; its absence is a reason to be suspicious.
The practical caveat is that a finished, highly polished bead resists shedding powder, and you should not gouge a bracelet you intend to keep. Use the unglazed ring on the bottom of a ceramic mug, apply gentle pressure to an inconspicuous spot such as the edge of a drill hole, and clean the mark afterwards. If you are testing a loose spare bead, you have more freedom. If the seller offers no way to verify at all, treat that as information too.
Weight and density: the second clue
Hematite has a specific gravity of roughly 5.3, which means it is more than five times as dense as water. For comparison, quartz is about 2.65 and most common glass sits near 2.5. Pick up an 8 mm hematite bead and it feels unexpectedly heavy, almost leaden for its size; a full strand can carry a satisfying, substantial weight on the wrist.
A simple comparison is more useful than a number. Hold a hematite bead and a same-size glass or quartz bead, one in each hand. The difference is obvious. Weigh a strand on a kitchen scale and divide by bead count if you want a rough check: a strand that looks like dense stone but feels light is a warning sign. Coated plastic, resin and hollow or foamed imitations give themselves away here. Note that a manufactured ferrite bead can match hematite's heft, so weight confirms density but not geological origin.
Lustre, colour and the drill hole
Polished hematite has a metallic to submetallic lustre: a cool, mirror-like, slightly steely sheen rather than the glassy sparkle of obsidian or the waxy glow of dyed agate. Under bright light, a chipped edge or the inside of a drill hole often shows a fine, slightly granular, dark-grey sparkle. Colours run from steel-grey to near-black, and some specimens show a faint reddish or iridescent tarnish.
Look closely at the drill holes and any chips. A coating that reveals a lighter or differently coloured core underneath is a sign of a surface-treated imitation. Uniform, bubble-free, perfectly identical beads with a flat black tone are more typical of glass or resin than of a natural mineral, which usually shows at least slight variation between beads. None of these observations is conclusive alone, but together with the streak and weight they build a consistent picture.
Common fakes and lookalikes
| Material | Streak | Relative weight | Giveaway |
|---|---|---|---|
| Genuine hematite | Cherry-red to reddish-brown | Heavy (SG ~5.3) | Metallic lustre, granular fracture |
| Black glass / obsidian | White or none | Light (SG ~2.4-2.5) | Glassy, conchoidal chips, tiny bubbles |
| Dyed black agate / onyx | White or pale | Medium (SG ~2.6) | Banding, waxy lustre, dye at drill holes |
| Coated plastic / resin | None or a coating smear | Very light | Warm to the touch, seam marks, no chill |
| Manufactured magnetic ferrite | Dark, sometimes brownish | Heavy | Strong, even magnet pull; perfectly uniform beads |
The last row is worth pausing on. A manufactured magnetic bead is not a "fake" in the sense of being worthless — it can be a perfectly good bracelet — but it is not natural hematite, and a listing that implies otherwise is misleading. We separate the two questions, "is this real hematite?" and "is this a good bracelet?", because they have different answers. Our what is hematite guide explains the mineral, while our evidence-aware benefits article covers what a bracelet realistically offers.
A step-by-step check for a finished bracelet
- Weigh the strand and compare it with a same-size strand of known glass or stone beads.
- Examine the lustre and the drill holes under bright light, looking for a metallic sheen and any coating that flakes.
- Do a careful streak test on an inconspicuous edge or a spare bead, using unglazed porcelain.
- Hold a strong magnet to a single bead and note whether the pull is faint, strong or absent.
- Compare the result with the seller's written material description, and ask if they do not match.
Record what you find rather than looking for one magic signal. A natural, non-magnetic hematite strand will show a red streak, heavy heft, metallic lustre and little magnet response. A manufactured magnetic strand will show heavy heft and a strong pull but a dark streak. Either can be an honestly sold product; the problem is only when the description and the object disagree.
What an online listing can and cannot tell you
Photographs are good for colour, finish and bead uniformity, and useless for streak, weight and magnetism. So read the words, not just the pictures. Look for a plain statement of what the beads are made from, whether any magnetisation is disclosed, bead diameter, and how the seller handles questions. Vague phrases like "energy stone" without a material description are not a substitute for the basic facts.
We publish what we verify on our authenticity page, and the mineral background is set out in Understanding Hematite. If anything is unclear, our FAQ and contact page are there for exactly that. A seller who answers a material question precisely is worth more than one who answers with a slogan.
Materials, claims and our position
It helps to keep three kinds of statement separate here as well.
What can be verified
Whether a bead is natural hematite, a manufactured ferrite, glass or resin is a material question with testable answers: streak, density, lustre and magnet response. Those facts do not depend on anyone's beliefs.
What traditional beliefs say
Crystal traditions associate hematite with grounding and protection, and sometimes treat a "real" stone as more symbolically potent than a manufactured one. Those are beliefs and cultural meanings people may personally value; they are not measurable properties of the material.
What has no scientific support
Claims that a genuine or magnetic stone produces measurable health outcomes are not supported by reliable scientific evidence. HEMIOS makes no such claims. We sell the HEMIOS Hematite Bracelet as a wellness accessory and piece of jewellery, not as a medical device. Authenticity matters to us because the description should match the object, not because a "real" stone is being sold as a remedy.
Frequently asked questions
Can I do a streak test without damaging my bracelet?
Use the unglazed rim of a ceramic mug and gentle pressure on the edge of a drill hole, then wipe the mark away. It is mildly abrasive, so test a spare bead or an inconspicuous spot first.
My beads are strongly magnetic. Are they fake?
Not necessarily fake, but not raw natural hematite either. A strong, even pull usually means manufactured or deliberately magnetised material. Check whether the listing disclosed that.
Is a red streak a guarantee of natural hematite?
It is strong evidence, because hematite's red-brown streak is distinctive, but combine it with weight and lustre. No single home test is conclusive on its own.
Does HEMIOS test its beads?
We verify materials before listing and describe them plainly; see the authenticity page and our Transparency & Safety notes for detail.
Editorial note: This article is for general information only. HEMIOS sells the Hematite Bracelet as a wellness accessory and piece of jewellery, not a medical device, and makes no health claims. Traditional meanings described here are beliefs, not facts. See our Transparency & Safety page and our Understanding Hematite guide for full detail.