Snowflake obsidian: meaning, formation, care and buying guide

What is snowflake obsidian?

Snowflake obsidian is a particular black obsidian: a dark volcanic glass, speckled with light patches that suggest snowflakes falling on a winter night. These “snowflakes” are small radiating clusters of cristobalite crystals, a form of silica that develops at high temperature. They are called spherulites, from the Greek for “small sphere”.

Their origin lies in a phenomenon called devitrification: over time, a glass is never perfectly stable, and certain zones may slowly reorganise into crystals. In snowflake obsidian, these zones appear white or grey against the black background. It is therefore not a mixture of two rocks, but a single glass with crystals that have grown within it.

Where is it found?

Sources mainly cite the western United States (Oregon, Utah) and Mexico, as with many obsidians. It forms in the same volcanic flows rich in silica as other obsidians, but only some flows have undergone this partial crystallisation.

The name “snowflake obsidian” is a descriptive trade name. Geologists speak of obsidian with cristobalite spherulites. As with other obsidians, no particular cultural link has been established for this pattern: the stories found on the subject are modern interpretations. For the wider history of obsidian (prehistoric tools, trade, mirrors), see our page on black obsidian.

Traditional symbolism

In modern practices around stones, snowflake obsidian is associated with balance between shadow and light, patience and acceptance of contrasts. Its look, black marked with white, has inspired the idea of a stone that reminds us that dark periods also contain bright points.

This is a symbolic reading, born from the stone’s appearance. It has nothing ancient or proven about it, and the stone has no effect on health or destiny. It can simply serve as a visual reference point for a moment of calm or reflection.

Traditional correspondences

To learn about the root chakra, see the page on the root chakra.

How to use it

• As a tumbled stone: the flakes are clearly visible; keep it in a pocket or on a desk.
• As beads or a bracelet: the spotted effect is very decorative, but each bead is different.
• As a sphere or egg: the most striking form, with a pattern that shifts as you turn it.
• As a pendant or cabochon: a simple ring, earrings or pendant.

These uses are about personal pleasure and ritual. Rough or broken pieces may have sharp edges: handle them with care. See the guide to gemstone jewellery.

Care and cleansing

Like other obsidians, snowflake obsidian is a glass: it tolerates water but dislikes knocks and sudden temperature changes. The areas with crystals may have a slightly different hardness, which can make the polish a little uneven.

• Water: lukewarm water and mild soap, then drying.
• Heat: avoid sudden changes (very hot water, sun behind a window, hair dryer).
• Knocks and scratches: store it apart from harder stones, wrapped in a cloth.
• Salt and products: avoid them on polished pieces; no ultrasonic cleaners if the stone is cracked.

For symbolic cleansing, smoke, sound or moonlight are harmless. See the guide to cleansing and recharging your stones.

Recognising true snowflake obsidian

In the real stone, the flakes are small rounded clusters with blurred outlines, scattered irregularly: they are not painted on the surface but are part of the material, including at depth when viewed from different angles. Some pieces have few flakes, others are covered with them.

• Imitations: black glass or resin with white spots, or a decorated black stone. Flakes that are too regular, all the same size, are suspicious.
• Confusions: dalmatian jasper (light background, black spots) is a very different stone, and harder; nor is the “snowflake” howlite or milky quartz.
• Treatments: obsidian is in principle not dyed; an abnormally bright colour is a warning sign.

How to choose your snowflake obsidian

Choose according to contrast: clear flakes, fairly numerous, on a deep black background give the finest effect. Check that there are no cracks, especially for beads and pendants. Tumbled stones and beads are very affordable; fine spheres cost more.

Ask the seller whether the stone is natural and untreated. In a set, it pairs with black obsidian, clear quartz or selenite for a black and white monochrome look.

Frequently asked questions

Also read

The meanings mentioned belong to tradition and symbolism. They are neither promises of results nor medical advice. Back to Guide to stones.