Is magnesite the same as howlite, or are they different stones?

They're different minerals that get conflated in the bead trade because both are white, porous, and take dye similarly. Magnesite is magnesium carbonate (MgCO3); howlite is a calcium borosilicate. Visually, untreated magnesite tends toward a chalky white with finer, tighter veining, while howlite shows bolder gray-to-black web-like veins. Once dyed turquoise-blue, the two are nearly impossible to tell apart by eye, and suppliers sometimes use the names interchangeably. The mineral identity should be disclosed — ask before buying if it isn't specified, especially when matching a previous batch.

Is dyed magnesite sold as turquoise actually turquoise?

No. Dyed magnesite is a common turquoise simulant — it takes blue dye well and the natural veining mimics turquoise matrix convincingly, but the mineralogy is entirely different. Real turquoise is a hydrated copper aluminum phosphate; magnesite is a magnesium carbonate. Trade names like "white turquoise," "block turquoise," or "turquoise magnesite" usually indicate dyed or reconstituted magnesite or howlite. If a project calls for actual turquoise, check the listing for mineral identity and treatment disclosure rather than relying on color alone.

Will the dye on dyed magnesite fade or bleed in finished jewelry?

It can. Magnesite is porous, so dye sits in the surface layer and isn't always color-fast. Prolonged sun exposure can fade dyed strands — especially the bright turquoise-blues — and water, perfume, lotion, hairspray, and solvent-based cleaners can pull color out or transfer it to skin and fabric. For finished pieces, keep magnesite dry, wipe with a soft cloth only, and store out of direct sunlight. Designers using dyed magnesite in lighter-colored stringing material should test a bead against the cord before committing to a full design.

What jewelry projects suit magnesite best given its softness?

At Mohs 3.5–4.5, magnesite is soft and best suited to pieces that don't take daily abrasion: earrings, pendants, statement necklaces, and bracelets worn occasionally rather than stacked or worn through chores. Avoid rings and bangles that contact hard surfaces — magnesite scratches and chips more readily than quartz-family stones. The chalky matte look of natural white magnesite pairs well with sterling, copper, leather, and other earth-tone stones; dyed turquoise-blue magnesite is a budget-friendly stand-in for turquoise in southwestern and bohemian designs.

How should I clean and store magnesite strands and finished pieces?

Wipe beads with a dry or barely-damp soft cloth — no soaking, no ultrasonic cleaners, no steam. Carbonate minerals react with acids, so keep magnesite away from vinegar, citrus cleaners, and any acidic jewelry dip. Avoid perfume, hairspray, lotion, and chlorinated water; apply cosmetics before putting jewelry on. Store strands flat in a dry environment, ideally in a soft pouch separated from harder stones like quartz or agate that can scratch the surface. For dyed material, keep storage dark to slow UV fading over time.

Wild Horse Magnesite 30mm AAA Grade Square Cabochon

Name: Wild Horse Magnesite 30mm AAA Grade Square Cabochon
SKU: CAB-MAG30SQU-WH-AAA

Wild Horse Magnesite 30mm AAA Grade Square Cabochon

$32.00 - $32.00

$32.00

$32.00
Login for wholesale

$32.00 - $32.00

$32.00
Login for wholesale

Wild Horse Magnesite is said to be a calming and soothing stone and is believed to be a powerful emotional balancer. The colors are predominantly a deep red/brown, rust reds with white plumes. This material is similar in hardness and texture to turquoise and is sometimes called “Wild Horse Turquoise” because it is mined in southeastern Arizona near the same area as Turquoise but it is not Turquoise. Wild Horse was first found in the mid-90's near a remote copper mining city. It is not possible to drive to the location of the mine so the material has to be hiked out of the area through rugged terrain. Wild Horse has a hardness of 4, so care should be taken when setting, polishing and wearing Wild Horse designer cabochons.

Sold individually. These cabochons are all unique and vary in colors and patterns. The image shown has 3 cabochons to give you an idea of the range possibilites of the colors, shapes, sizes, and patterns.

The cabochon you received will not be exactly what is show in the image.

SKU CAB-MAG30SQU-WH-AAA

Specifications

Stone type

Carbonate

Cut

Cabochon

Bead size

30mm

Drill style

Undrilled focal stone (bezel-set); some side-drilled or back-drilled

Grade

AAA Grade

Typical origin

ChinaBrazilAustriaGreeceUSA

Mohs hardness

3.5–4.5

Care

Soft and porous (Mohs 3.5–4.5). Dyed material will fade with sun exposure and bleed in water or with solvents; keep dry, avoid perfume and cleaners. Dye disclosure is standard.

Mineral family

Carbonate

Frequently asked questions

Is magnesite the same as howlite, or are they different stones?

They're different minerals that get conflated in the bead trade because both are white, porous, and take dye similarly. Magnesite is magnesium carbonate (MgCO3); howlite is a calcium borosilicate. Visually, untreated magnesite tends toward a chalky white with finer, tighter veining, while howlite shows bolder gray-to-black web-like veins. Once dyed turquoise-blue, the two are nearly impossible to tell apart by eye, and suppliers sometimes use the names interchangeably. The mineral identity should be disclosed — ask before buying if it isn't specified, especially when matching a previous batch.
Is dyed magnesite sold as turquoise actually turquoise?

No. Dyed magnesite is a common turquoise simulant — it takes blue dye well and the natural veining mimics turquoise matrix convincingly, but the mineralogy is entirely different. Real turquoise is a hydrated copper aluminum phosphate; magnesite is a magnesium carbonate. Trade names like "white turquoise," "block turquoise," or "turquoise magnesite" usually indicate dyed or reconstituted magnesite or howlite. If a project calls for actual turquoise, check the listing for mineral identity and treatment disclosure rather than relying on color alone.
Will the dye on dyed magnesite fade or bleed in finished jewelry?

It can. Magnesite is porous, so dye sits in the surface layer and isn't always color-fast. Prolonged sun exposure can fade dyed strands — especially the bright turquoise-blues — and water, perfume, lotion, hairspray, and solvent-based cleaners can pull color out or transfer it to skin and fabric. For finished pieces, keep magnesite dry, wipe with a soft cloth only, and store out of direct sunlight. Designers using dyed magnesite in lighter-colored stringing material should test a bead against the cord before committing to a full design.
What jewelry projects suit magnesite best given its softness?

At Mohs 3.5–4.5, magnesite is soft and best suited to pieces that don't take daily abrasion: earrings, pendants, statement necklaces, and bracelets worn occasionally rather than stacked or worn through chores. Avoid rings and bangles that contact hard surfaces — magnesite scratches and chips more readily than quartz-family stones. The chalky matte look of natural white magnesite pairs well with sterling, copper, leather, and other earth-tone stones; dyed turquoise-blue magnesite is a budget-friendly stand-in for turquoise in southwestern and bohemian designs.
How should I clean and store magnesite strands and finished pieces?

Wipe beads with a dry or barely-damp soft cloth — no soaking, no ultrasonic cleaners, no steam. Carbonate minerals react with acids, so keep magnesite away from vinegar, citrus cleaners, and any acidic jewelry dip. Avoid perfume, hairspray, lotion, and chlorinated water; apply cosmetics before putting jewelry on. Store strands flat in a dry environment, ideally in a soft pouch separated from harder stones like quartz or agate that can scratch the surface. For dyed material, keep storage dark to slow UV fading over time.