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 · What you need
Crystals for Clarity
The stones traditionally chosen for clarity, what each one is used for, and how to look after it.
Clarity is the ask when the problem is not energy but fog: too many open threads, no clear next step. The traditional stones for it are the clears and the deep blues, and the standard practice is to keep one where the thinking happens rather than to wear it. Fluorite is on more desks than any other stone for exactly this reason.
12stones listed
2safe in water
3keep out of water
9with 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
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.
Selenite
Gypsum · Mohs 2
Translucent white gypsum, used to clear rather than to add. It dissolves in water.
- Chakra
- Crown
- Element
- Spirit
- Care
- 💧 Keep dry
Clear Quartz
Quartz · Mohs 7
The blank stone. It holds no agenda of its own, which is why it is used to strengthen whatever sits beside it.
- Chakra
- Crown
- Element
- Spirit
- Care
- 💧 Water safe
No guide on site yet What it pairs with
Howlite
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.
- Chakra
- Crown
- 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
How to actually use them
Tradition is more specific about method than most articles let on. Grounding and protection stones are held or placed rather than worn. Sleep stones go on the nightstand, not under the pillow where they get lost. Throat stones are worn at the neck. Money stones go where the money is handled. Pick one rather than a handful: the consistent instruction across the literature is that a single stone with a stated intention beats a pocketful without one.
If you would rather describe the feeling than pick from a list, the crystal finder starts from what you need and works backwards to the stone.
Other what you need groups
Protection 19Calm & Anxiety 20Sleep 5Love 5Heart Healing 10Abundance & Money 6Confidence 5Courage 5Focus 8Grounding 11Intuition 13Communication 14Creativity 5Cleansing 5Manifestation 4Transformation 5
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 →