What Is White Turquoise? Real Stone or Dyed Howlite?

AvatarByEric Dawson Jewelry & Gemstones

White turquoise is, in nearly every case, not turquoise at all. Sellers use the phrase to market dyed howlite or dyed magnesite, two soft white minerals that take dye well and mimic the look of classic turquoise. Genuine turquoise is a copper aluminum phosphate that runs from pale blue to green, never a true chalky white. The one stone that legitimately earns a white turquoise reputation is White Buffalo turquoise, a dolomite mineral pulled from a single mine near Tonopah, Nevada. Roughly 80% of the turquoise sold on the market today is dyed howlite or magnesite rather than genuine stone, so a buyer who wants to avoid paying real prices for an imitation needs to know what separates the two.

What Is White Turquoise Actually?

Marketing invented the term white turquoise, not mineralogy. Almost every piece of jewelry sold under that label is dyed howlite or dyed magnesite, and the phrase carries no official geological definition. Gemstone dealers and identification guides describe it as a name invented to move an inexpensive, porous white stone at a price closer to what real turquoise commands. A shopper who searches for “white turquoise” online will mostly find howlite beads dyed white, or left undyed and simply relabeled, then strung next to blue and green pieces that were dyed to look like the genuine article.

The confusion is not accidental. Howlite and magnesite both absorb dye easily because they are porous, so a supplier can take a plain white rock, apply pigment or leave it plain, and market either version under whatever name sells best that season. Some listings even use invented trade names such as Turkenite or Turquenite for the dyed versions, language meant to sound geological while avoiding an outright false claim of turquoise.

Why Sellers Use the Name “White Turquoise”

Turquoise has centuries of cultural weight and jewelry demand behind it, so attaching the word to a cheaper stone raises the price a buyer is willing to pay. Undyed white howlite on its own gets little attention in the marketplace because plain white rock looks unremarkable, but the same stone dyed blue or green, or sold as “white turquoise,” moves quickly. The name borrows turquoise’s reputation without delivering turquoise’s chemistry, hardness, or rarity.

What Is White Buffalo Turquoise?

White Buffalo turquoise is the one stone that can honestly carry a white turquoise reputation, and it is not chemically turquoise either. It is dolomite, a calcium magnesium carbonate, mined from a single deposit near Tonopah, Nevada, discovered in 1993. The stone shows a pure white to cream body cut through with fine black lines, a look distinct enough that dealers and collectors treat it as its own category rather than a turquoise substitute.

Because the Tonopah deposit is the only known source, supply is limited and prices stay high compared with dyed howlite or magnesite. Buyers researching white turquoise jewelry often encounter White Buffalo pieces marketed under names that reference bison or spiritual symbolism, so it helps to confirm with the seller whether a piece is genuine Tonopah material or simply dyed howlite borrowing the same imagery.

What Is Howlite, and Why Is It Sold as Turquoise?

Howlite is a calcium borosilicate mineral that forms naturally in evaporite deposits and was first described in the 1800s by mineralogist Henry How in Nova Scotia. Its natural color is white to grey, usually marked with thin grey or black veining that spiderwebs across the surface, a pattern that happens to resemble the matrix seen in genuine turquoise. That resemblance, combined with a texture that takes dye evenly, is why howlite became the default imitation stone.

That softness comes with a Mohs hardness of 3.5, well below turquoise’s 5 to 6, so the stone scratches far more easily. Its high porosity also lets dye soak deep into the surface rather than sitting on top, a property that makes both the scratch test and the acetone test reliable.

How Howlite’s Softness Gives It Away

A stone this soft cannot hold a polish the way turquoise does. Turquoise takes a waxy to sub-vitreous shine, while howlite tends to look more porcelain, flatter and less lustrous even after cutting and polishing. Jewelers who handle both materials daily can often tell them apart by touch and shine alone, before running any chemical test.

What Is Magnesite, and How Is It Different from Howlite?

Magnesite is a magnesium carbonate mineral, white to chalky grey in its natural state, and it is the second most common stone sold as white turquoise. Major sources include China, Austria, and Brazil. Like howlite, magnesite carries a Mohs hardness of roughly 3.5 to 4.5, softer than genuine turquoise, and it is porous enough to absorb dye the same way.

The clearest way to separate magnesite from howlite is the veining. Magnesite typically shows brown or tan veins running through a white to grey body, while howlite shows grey or black veins instead. Side by side, an experienced buyer can usually name which imitation they are holding just from vein color, even before any hardness or acetone test.

How Does White Turquoise Compare to Genuine Turquoise?

Genuine turquoise is a hydrous phosphate of copper and aluminum, chemically unrelated to dolomite, howlite, or magnesite, and that chemical gap explains every physical difference buyers notice. Copper gives real turquoise its blue tone, while iron content pushes some stones toward green. It forms slowly, over thousands of years, as rainwater carrying dissolved copper reacts with aluminum and phosphorus minerals in arid regions, which is why deposits are limited and concentrated in a handful of countries: Iran, the United States, China, Mexico, Afghanistan, and Australia.

The table below lines up the four stones a buyer is likely to encounter when shopping for white turquoise.

Property Genuine Turquoise White Buffalo Turquoise Howlite (Undyed) Magnesite (Undyed)
Chemical composition Hydrous phosphate of copper and aluminum Dolomite (calcium magnesium carbonate) Calcium borosilicate hydroxide Magnesium carbonate
Mohs hardness 5 to 6 3.5 to 4 3.5 3.5 to 4.5
Color Blue-green to pale blue or green Pure white with black lines White with grey or black veining White with brown or tan veining
Luster Waxy to sub-vitreous Varies by piece Porcelain-like Chalky
Porosity Porous, absorbs oils and moisture Porous Highly porous, dyes easily Highly porous, dyes easily
UV fluorescence Typically inert Varies Brownish yellow to cream glow Bluish green glow
Primary sources Iran, USA, China, Mexico, Afghanistan, Australia Tonopah, Nevada (single mine) Nova Scotia China, Austria, Brazil
Typical price Expensive, rare Expensive, rare source Inexpensive Inexpensive

Why Genuine Turquoise Carries a Long History

People have used turquoise for roughly 9,000 years, which is part of why the real stone still commands a premium over any imitation. Archaeologists have recovered more than 1,000 turquoise ornaments at Jiahu in China, dated to around 7000 to 5800 BC, and Ancient Egyptians mined turquoise extensively in the Sinai Peninsula by the fifth millennium BC. The stone appears in famous artifacts including King Tutankhamun’s funerary mask, and it remains listed as a December birthstone on the modern birthstone chart. Howlite and magnesite carry none of that depth, since both entered the jewelry trade only as substitutes once real turquoise supply tightened.

How Can You Tell if White Turquoise Is Real?

You can tell real turquoise from dyed howlite or magnesite with a short series of checks, starting with the most reliable and moving to the ones that need less equipment. No single test is perfect on its own, but two or three in agreement give a confident answer.

  1. Run the acetone test. Dip a cotton swab in nail polish remover and rub it on a hidden part of the stone. If the swab picks up blue or green color, the piece is dyed howlite or magnesite. Genuine turquoise will not release color this way.
  2. Try a hardness scratch. On an inconspicuous spot, touch the stone lightly with a steel needle or knife point. Real turquoise resists a light scratch because it sits at 5 to 6 on the Mohs scale; howlite and magnesite mark easily at 3.5 to 4.5.
  3. Examine the veining. Grey or black spiderweb lines point to howlite, brown or tan lines point to magnesite, and pure black lines on a milky white body point to genuine White Buffalo turquoise. Complex, irregular brown matrix veining points to natural blue-green turquoise.
  4. Check under UV or black light. Howlite tends to glow brownish yellow to cream, magnesite glows bluish green, and genuine turquoise is usually inert under the same light.
  5. Look for unnatural uniformity. Dyed howlite often shows flat, even color with small white patches where the dye failed to penetrate fully. Real turquoise shows natural variation across a single piece.
  6. Ask for a refractometer reading if the value is high. A jeweler can measure refractive index to confirm mineral identity for an expensive purchase, a step worth the cost when a piece is priced as fine turquoise.
  7. Buy from a seller who discloses treatment. A reputable dealer states plainly whether a stone is genuine turquoise, White Buffalo turquoise, or dyed howlite or magnesite, and stands behind that description in writing.

My rule would be to assume that a piece labeled white turquoise is howlite or magnesite unless it is clearly identified as White Buffalo from Tonopah. The label itself gives too little assurance because it has no geological meaning, while the most common alternatives are inexpensive and easy to dye. I would pay a premium only when the seller names the actual mineral and the stone’s origin. That standard seems fair to both the buyer and a genuine White Buffalo stone, whose limited supply is part of its value.

What Determines the Price of White Turquoise?

Price is one of the most reliable warning signs a buyer has before ever touching the stone. Genuine turquoise is rare and expensive because most of the historically productive deposits have been mined out over decades, and White Buffalo turquoise carries a similar premium because it comes from a single Nevada source. Dyed howlite and magnesite, by contrast, are common and cheap to produce, so a listing priced well below what real turquoise or White Buffalo material commands is almost certainly an imitation.

Distance from Nevada is a useful shorthand too. Sellers close to the Tonopah mine, or established dealers who buy directly from miners, have far less incentive to substitute cheaper stone, while a listing sourced from overseas at a bargain price is far more likely to be dyed howlite or magnesite marketed under a borrowed name.

Frequently Asked Questions

Is White Turquoise the Same as White Buffalo Turquoise?

Not always. White Buffalo turquoise refers specifically to dolomite mined near Tonopah, Nevada, while white turquoise is a broader marketing term that mostly covers dyed howlite or magnesite. Some sellers use the two names interchangeably, so a buyer should ask which one is actually being sold.

Can White Turquoise Be a Natural, Undyed Stone?

Undyed white howlite and magnesite do occur naturally and are sometimes sold plain rather than dyed. They are still not turquoise chemically, since turquoise itself never occurs in a true white form. Genuine white turquoise, in the sense of a real turquoise mineral that is white, has not been documented in current identification sources.

Does Hardness Alone Prove a Stone Is Fake?

A soft stone that scratches at 3.5 to 4.5 on the Mohs scale strongly suggests howlite or magnesite rather than turquoise, which sits at 5 to 6. Combine the scratch test with the acetone test or a look at vein color before making a final call, since a single test can be misread.

Why Do Some Dyed Stones Have Unusual Names Like Turkenite?

Trade names such as Turkenite or Turquenite let a seller market dyed howlite or magnesite with a word that sounds close to turquoise without stating it directly. These names carry no official geological meaning and exist mainly to blur the line for a casual buyer.

Is It Safe to Wear Dyed Howlite Jewelry?

Dyed howlite is generally safe to wear as costume or fashion jewelry, though the dye can fade or transfer with heavy sweat or repeated contact with skin and cosmetics. Anyone with sensitive skin or an open wound near the jewelry should check with a doctor before regular wear, the same caution that applies to any dyed or treated stone.

The safest approach to buying white turquoise is to treat the name itself as a starting question rather than an answer, then confirm the actual mineral with a scratch test, an acetone swab, and a seller willing to put the stone’s true identity in writing.

What This Page Does Not Publish

  • I do not identify individual stones from photos or online listings.
  • I do not track which markets use the white turquoise label most often.
  • I do not provide professional certification or personalised buying advice.

References

Author Profile

Eric Dawson
Eric Dawson
I'm Eric Dawson, the writer behind The Money Watch. I live in the Columbus, Ohio area and I write about the ordinary questions that turn out to be complicated: computers, shopping, food, travel, parking, small businesses, fees, rules and products. Every article starts with the official page, the maker or the agency, then the sources that check it, and I say plainly where they disagree and what I would do. More about how I work is on the About page.