Atlantisite

Atlantisite is a lapidary rock made of green serpentine with purple stichtite mottling.

A palm stone of Atlantisite has a slightly soapy serpentine feel, similar to a worn bar of soap. The purple stichtite spots usually take a smoother polish than the green, so a thumb drawn across the surface can detect tiny differences in height. The effect is subtle but noticeable.

Color is the main feature of the stone. The serpentine ranges from apple green to olive green, and the stichtite appears as lilac, grape or magenta patches that look dabbed on with a sponge, or like paint pressed into the surface and lifted off.

Most pieces for sale are tumbled stones, cabochons or freeform cuts. Raw chunks are available, but they often look rough on the outside, and the pattern does not show until the stone is sliced. Some sellers apply the name Atlantisite to any green and purple rock. That is inaccurate. True material is stichtite hosted in serpentine, not just any purple mineral in a green one.

Stichtite, the purple mineral you see in atlantisite, was first described in 1910 from Tasmania. It was named for Robert Carl Sticht, a mining manager connected to the Mount Lyell district.

Atlantisite appeared later as a trade name. It was sold on its green and purple combination, which stands out once the stone is cut and polished, with Tasmania regarded as the classic source. It is not an official mineral species name. The term is often used loosely at shows, especially for mixed serpentine with only a few small purple patches.

The best-known Atlantisite comes from western Tasmania, where stichtite occurs in serpentinized ultramafic rocks. Similar stichtite-serpentine material is also reported from places like South Africa.

Think “altered ultramafic rock.” You’re starting with magnesium-rich material like peridotite or dunite. Then water muscled its way in during metamorphism and hydrothermal alteration, and that original rock gets converted into serpentine group minerals.

Stichtite comes in later, usually right where chromium-bearing conditions and carbonate fluids overlap. It’s a chromium-rich magnesium carbonate hydroxide, and it typically forms as veins, patches, or replacement zones inside the serpentine. That’s why, in a hand sample, you see those purple little islands sitting in the green instead of tidy, separate crystals you could just pick out with tweezers.

Stichtite is irregular in where it occurs. Rough that looks good on the outside may turn out, when sliced, to be mostly plain green serpentine with only a faint purple blush. Buying rough is therefore a gamble unless a fresh cut face can be inspected.

Color: Atlantisite shows green serpentine as the base with purple stichtite patches, streaks, or clouds. The purple ranges from pale lilac to deeper magenta depending on concentration and lighting.

Luster: It’s usually waxy to dull on rough surfaces and waxy to slightly vitreous once polished.

Pick up a piece and feel it. Real serpentine tends to feel a little slick or soapy compared to quartz jaspers, and it stays cool in the hand longer than cheap resin fakes. If you scratch it with a steel nail, most Atlantisite will mark or scratch because serpentine is soft, while the purple areas can be a touch different but still not “hard stone” territory. The real test is a loupe and a good light: you’re looking for purple that looks like mineral growth in the rock, not a dyed crack network or a surface stain that pools in pits.

Atlantisite is sometimes confused with these materials:

• Kammererite in green matrix (purple chromian clinochlore can read like stichtite in photos)
• Serpentine with purple dye (dyed “atlantisite” where the purple bleeds into fractures and drill holes)
• Variscite or variscite-matrix material (apple-green with webby patterns, often sold as “atlantisite” when the purple is faint or absent)
• Ruby in zoisite (any green-and-purple combo gets lumped together online, especially in palm stones)
• Green aventurine or “green quartz” with added purple stain (tumbled stones where the purple is too even to be stichtite)
• Glass or resin “composite” cab material (green base with purple swirls that look painted, often too glossy and too uniform)

Handling polished Atlantisite is pretty low risk. The only real worry is the dust you can kick up if you saw it, sand it, or carve it (that fine powder that clings to your fingers and settles on the bench).

If you have to cut it, do it wet and wear a snug, properly fitted respirator that’s actually rated for fine particulates. And when you’re done, don’t sweep up that dried dust. Keep it wet and wipe up the slurry while it’s still damp (it turns into this gritty gray paste).

Rough/Tumbled: $5 - $40 per piece

Cut/Polished: $2 - $10 per carat

Price depends mostly on color balance and visible pattern. Strong purple beside clean green sells quickly, while muddy brown-green or barely visible lavender sells slowly. Large, clean rough suitable for cabochons costs more, because cutting often exposes fractures and crumbly, chalky zones that fail at the grinding wheel.

Moderate — Scratch resistance: Fair, Toughness: Fair

It’s stable for normal display, but the serpentine base is soft enough that it can pick up scratches and dull spots with rough handling.

Use & Storage

Store it away from harder stones like quartz and topaz, because it’ll pick up scuffs in a shared bowl. A soft pouch or a divided box tray keeps the polish looking good.

Cleaning

1) Rinse briefly with lukewarm water and a drop of mild soap. 2) Gently scrub with a soft toothbrush if there’s grime in pits. 3) Pat dry, then air dry fully before putting it back in a pouch.

Cleanse & Charge

For energetic cleansing, gentle methods such as smoke, sound or a short period in moonlight are suitable. Salt soaks are best avoided because they can leave a crust in tiny pores and seams.

Placement

On a desk or bedside table it holds up fine, just don’t toss it in with keys or pocket change. If you display it, a little stand helps keep it from getting rubbed dull on the shelf.

Caution

Skip ultrasonic cleaners and stay away from harsh acids. And don’t handle it like some “forever ring stone,” because the serpentine part is just too soft to take daily wear without getting scuffed up.

Atlantisite is mainly used as a tumbled stone, palm stone, cabochon or freeform carving. In crystal traditions it is associated with calm, taken from the green serpentine, and with gentle compassion, taken from the purple stichtite. Practitioners link it with the Heart and Third Eye Chakras, the signs Virgo and Libra, and the elements Earth and Water. These are cultural associations, not proven effects, and a crystal does not replace medical care.

In practical use, a smooth palm stone is often held as a worry stone, kept on a desk, or placed near a journal or tea mug as a reminder to pause. Its mottled purple patches give the eye a resting point during slow breathing exercises. Because serpentine is soft, with a hardness of about 2.5 to 4, the surface can pick up scratches if it shares a pocket with keys or coins. A separate pouch or a display spot keeps the polish intact.