Amethyst
Quartz · Mohs 7
The purple quartz people reach for first, kept by the bed for a quieter head at night.
- Element
- Air
- Care
- 💧 Water safe
The stones assigned to air in the five-element scheme this site follows.
Air stones are for the head and the voice: clarity, focus, honest speech and the kind of insight that arrives sideways. They are the blues and violets, and in traditional practice they are the group worked with when the problem is confusion rather than exhaustion. Their usual partner is an earth stone, so that clear thinking has somewhere to land.
⚠️ Azurite is a toxic mineral. Keep it dry and polished, wash your hands after handling raw pieces, and never make a gem elixir from it. Full care verdicts →
Quartz · Mohs 7
The purple quartz people reach for first, kept by the bed for a quieter head at night.
Apatite · Mohs 5
Blue-green and tied to motivation with a plan behind it rather than a burst of enthusiasm.
Copper carbonate · Mohs 3.5–4
Intense blue copper mineral linked with insight that arrives sideways.
Quartz
Also sold as hawk's eye. The same fibrous quartz as tiger's eye, but blue and much less pushy.
Carbonate · Mohs 3
Soft carbonate in orange, yellow, white or green, used for a gentle lift and a change of air.
Sulfate · Mohs 3–3.5
Pale sky-blue crystals, tied to a very quiet kind of stillness.
Fluorite · Mohs 4
Banded purple, green and blue. The desk stone, associated with order and clear thinking.
Cordierite
Violet-blue and dramatically different from each angle, which is how Norse sailors are said to have used it.
Worth knowing: Iolite is strongly pleochroic: it shows blue, violet and near-colourless depending on the viewing angle. That is a real optical property, not a trick of the setting.
Feldspar · Mohs 6–6.5
Grey until the light hits it, then blue and gold. Tied to intuition and to change already underway.
Anhydrite · Mohs 3–3.5
Chalky blue anhydrite, associated with comfort and a sense of company.
Borate · Mohs 3.5
Chalk-white with grey veining, and traditionally the patience stone.
Worth knowing: Dyed howlite is the most common turquoise substitute on the market. If a blue stone is cheap, evenly coloured and scratches easily, this is usually what it is.
Kyanite · Mohs 4.5–7
Blue blades, traditionally used to straighten the line between what you think and what you say.
Rock (lazurite) · Mohs 5–5.5
Ultramarine flecked with pyrite, an ancient stone of wisdom and plain speech.
Sodalite · Mohs 5.5–6
Deep blue veined with white, the stone of cool logic and honest self-assessment.
Turquoise · Mohs 5–6
Sky blue to green, carried for thousands of years as a travelling and protection stone.
The elements are a balancing scheme rather than a ranking. The traditional advice is to pair rather than to stack: an air stone with an earth stone so that clear thinking has somewhere to land, a fire stone with a grounder so that drive does not become agitation. Two intense stones of the same element together are read as too much of one thing. The pairing checker applies that rule to any two or three stones you name.
The mineral family, the Mohs hardness and the water verdict on each card are checkable physical fact, drawn from standard mineralogical and gemmological references. The chakra, element and purpose associations are tradition, published across the modern crystal-healing literature and offered here for reflection rather than as fact. Nothing on this page is medical advice. Browse the full database →