Walk into a market stall or a fast-fashion jewelry site and you will see strings of bright, blue, matrix-patterned beads labeled “turquoise” at prices that make a bench jeweler wince. Nine times out of ten, those beads are not turquoise at all. They are white howlite or white magnesite, dyed blue to impersonate the real thing. This is not a scandal — it is a long-standing, openly used trade practice — but it matters if you are buying, because howlite and magnesite are not turquoise, they do not age like turquoise, and they need different care.

Howlite: the white borate with grey veins

Howlite is a calcium borate mineral, usually found as a white, opaque, veined stone with fine grey or black spiderweb matrix. In its natural state it looks like a small, porcelain-white nodule with dark veins. It is soft — about 3.5 on the Mohs scale — porous, and takes dye like a sponge. That combination is exactly why the trade loves it: the natural grey veins mimic the matrix in turquoise, and the white base accepts blue dye evenly. Dyed howlite is the single most common “turquoise” on the lower end of the market.

Magnesite: the lookalike cousin

Magnesite is a magnesium carbonate, also white, also porous, also soft (3.5 to 4.5 on Mohs). It has a slightly chalkier look than howlite and a less regular, more cloudy matrix. Like howlite, it is routinely dyed blue, green, pink, or red. Visually, dyed magnesite and dyed howlite are hard to tell apart without a lab, and the trade lumps them together.

How to tell the difference at home

You do not need a spectrometer. A few practical checks separate real turquoise from dyed howlite or magnesite:

  • Price. Natural, untreated turquoise, especially stabilized or “number 8” or “Royston” material, is not sold at ten dollars a strand. If the price feels impossible, the stone is not what the tag says.
  • Color consistency. Dyed material tends to have darker color pooling in the matrix lines. Real turquoise varies in saturation across the surface.
  • Acetone test (gently). A discreet rub with acetone on a white cloth can transfer dye on howlite/magnesite. We do not recommend doing this on a piece you love — use it only on a corner you cannot see, or ask a jeweler.
  • Hardness. Real turquoise is 5 to 6 on Mohs. Howlite and magnesite are 3.5 to 4.5, so they scratch more easily and feel slightly lighter.

Caring for the real thing vs. the dyed version

If your blue beads are genuine turquoise, care means avoiding cosmetics, perfume, and sunscreen, which can etch the surface over time. We go deeper in chemical exposure and your jewelry. If they are dyed howlite or magnesite, the care rule is simpler: keep them dry. Water, sweat, and humidity can leach the dye, turning a bright blue bead pale and blotchy over months. Never wear dyed howlite in the shower, the pool, or the gym. Wipe it with a dry cloth only, and store it away from direct sun.

Is that a problem?

Not necessarily. Dyed howlite is an honest, inexpensive craft material when it is sold as what it is. The issue is misrepresentation. A necklace sold to you as “turquoise” that is actually dyed howlite, at turquoise prices, is a different conversation. We are happy to look at a piece you inherited or bought secondhand and tell you what it is — that is the kind of bench conversation that costs nothing and saves real confusion later. For the broader landscape of what to ask when buying colored stones, our colored gemstone buying guide is the place to start.

How to shop with the right expectations

If you are building a collection on a budget, there is nothing wrong with choosing dyed howlite or magnesite deliberately. They take a nice polish, they come in fun colors, and at ten or twenty dollars a strand they are a low-stakes way to experiment with a piece of jewelry you might not wear every week. The right way to buy them is to ask — out loud — whether the material is natural or stabilized or dyed, and to expect the answer in writing on a receipt. A reputable seller will tell you immediately. The ones who hesitate or reach for the word “genuine” without specifics are the ones to walk away from. This is the same rule we apply to every colored stone we stock, and it is the reason our clients never call us six months later confused about what they actually bought. If you want to understand how common treatments sit across the wider market, our note on treated vs untreated stones uses sapphires as a clear case study in how the same logic applies everywhere.

Our product descriptions follow the disclosure requirements of the FTC Guides for the Jewelry, Precious Metals and Pewter Industries (16 CFR Part 23).

Related reading: Rhodium Plating: Why White Gold and Silver Get It, and How Often It Re, Understanding Diamond Simulants: Moissanite, CZ, and White Sapphire, Designing for Durability: Jewelry That Lasts a Lifetime.

Frequently Asked Questions

How do I verify a factory before placing a bulk order?

Request a production video, business license, export records and a paid sample run. A factory that accepts a 50-piece test order is usually a real manufacturer.

What payment terms do you offer?

30% T/T deposit with the balance against the bill of lading. This protects both sides on first orders and can move to net terms after a track record.

What is your normal reject rate?

3–5% under 10x loupe inspection for cast and set pieces. Defective units are replaced free in the next shipment.

Where is the factory located?

Wuzhou, Guangxi, China—the core lab-grown and moissanite manufacturing cluster. Shipments go via Guangzhou or Shenzhen ports.