KnowAmethyst
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
Crystal database · Chakra
Crystals for the Third Eye Chakra
The stones traditionally worked with at the third eye chakra, at the between the brows.
The third eye sits between the brows and is associated with insight, dreams and the sense of knowing something before you can justify it. In practice its stones are used for reflection, journalling and dreamwork rather than for anything outward-facing. They are the deep blues and violets, and they are traditionally kept by the bed or held during meditation.
15stones listed
1safe in water
2keep out of water
12with a full guide
⚠️ 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 →
Apatite
Apatite · Mohs 5
Blue-green and tied to motivation with a plan behind it rather than a burst of enthusiasm.
- Element
- Air
- Care
- 💧 Brief water only
Apophyllite
Phyllosilicate
Glassy clear pyramids that grow on basalt, kept for the sense of a room being aired out.
- Element
- Spirit
Azurite
Copper carbonate · Mohs 3.5–4
Intense blue copper mineral linked with insight that arrives sideways.
- Chakra
- Third Eye
- Element
- Air
- Care
- 💧 Keep dry ⚠️ toxic
Blue Obsidian
Volcanic glass
Translucent blue glass used for speaking plainly when the stakes are high.
Worth knowing: Natural blue obsidian is extremely rare. Almost all bright blue obsidian on the market is manufactured glass.
- Element
- Water
Blue Tiger's Eye
Quartz
Also sold as hawk's eye. The same fibrous quartz as tiger's eye, but blue and much less pushy.
- Element
- Air
Fluorite
Fluorite · Mohs 4
Banded purple, green and blue. The desk stone, associated with order and clear thinking.
- Element
- Air
- Care
- 💧 Brief water only
Herkimer Diamond
Quartz
Doubly terminated quartz from Herkimer County, New York, so clear it was mistaken for diamond.
Worth knowing: A Herkimer diamond is quartz, not diamond. It sits at 7 on the Mohs scale rather than 10.
- Element
- Spirit
Iolite
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.
Labradorite
Feldspar · Mohs 6–6.5
Grey until the light hits it, then blue and gold. Tied to intuition and to change already underway.
- Element
- Air
- Zodiac
- Scorpio · Sagittarius
- Care
- 💧 Brief water only
Opalite
Glass
Milky and blue-glowing against the light, popular for transitions and for how it looks.
Worth knowing: Opalite is man-made opalescent glass. It is not opal, not moonstone and not a mineral, and honest sellers say so.
- Element
- Spirit
Sugilite
Cyclosilicate
Deep magenta-purple, only identified in 1944, and traditionally given to people who absorb the mood of a room.
- Element
- Spirit
Kyanite
Kyanite · Mohs 4.5–7
Blue blades, traditionally used to straighten the line between what you think and what you say.
- Element
- Air
- Care
- 💧 Brief water only
No guide on site yet What it pairs with
Lapis Lazuli
Rock (lazurite) · Mohs 5–5.5
Ultramarine flecked with pyrite, an ancient stone of wisdom and plain speech.
- Element
- Air
- Care
- 💧 Keep dry
No guide on site yet What it pairs with
Sodalite
Sodalite · Mohs 5.5–6
Deep blue veined with white, the stone of cool logic and honest self-assessment.
- Element
- Air
- Care
- 💧 Brief water only
No guide on site yet What it pairs with
Working with the third eye chakra
The traditional practice is simple and physical: one stone, placed at the between the brows or held in the hand, for as long as it takes to notice your breathing change. Tradition treats more stones as less effect rather than more, and the usual advice is to finish at a lower centre than you started so you do not get up light-headed. If you are new to the scheme, the full guide to the seven chakras explains what each centre is said to govern.
Other chakra groups
Fact and tradition, kept apart
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 →