KnowAgate
Chalcedony · Mohs 7
Banded chalcedony in almost every colour, traditionally the steadying stone that stops the swings.
- Chakra
- Root
- Element
- Earth
- Zodiac
- Gemini
- Care
- 💧 Water safe
Crystal database · Colour
White Crystals
Every white stone in the database, with what it is made of and what it is traditionally used for.
White and cream stones are used for clearing rather than for adding: selenite plates under a shelf, howlite in a pocket, moonstone for patience with your own timing. Softness is the theme mineralogically as well as symbolically. Selenite is gypsum at 2 on the Mohs scale and dissolves in water, howlite is chalky and takes dye, and mother of pearl is organic and etched by acid.
16stones listed
2safe in water
4keep out of water
11with a full guide
Apophyllite
Phyllosilicate
Glassy clear pyramids that grow on basalt, kept for the sense of a room being aired out.
- Element
- Spirit
Blue Lace Agate
Quartz (chalcedony)
Pale blue banded agate, the gentlest of the throat stones and a common gift for anxious talkers.
Calcite
Carbonate · Mohs 3
Soft carbonate in orange, yellow, white or green, used for a gentle lift and a change of air.
- Element
- Air
- Care
- 💧 Keep dry
Celestite
Sulfate · Mohs 3–3.5
Pale sky-blue crystals, tied to a very quiet kind of stillness.
- Element
- Air
- Care
- 💧 Keep dry
Dalmatian Jasper
Feldspar rock
Cream with black spots, the stone people buy for children and for their own sense of humour.
Worth knowing: Dalmatian jasper is not a jasper. It is a feldspar-rich igneous rock, and the black spots are usually arfvedsonite rather than tourmaline.
- Element
- Earth
Jade
Jadeite / Nephrite
Carved for four thousand years in China and in Mesoamerica as the stone of a well-lived life.
Worth knowing: Jade is two different minerals: jadeite and nephrite. Both are genuine jade. Serpentine, aventurine and dyed quartz are frequently sold as jade and are not.
Moss Agate
Quartz (chalcedony)
Clear chalcedony with green mineral growth inside that looks like moss. The gardener's stone.
Worth knowing: The green is not plant matter. It is chlorite or hornblende that grew in dendritic, plant-like shapes.
Mother of Pearl
Nacre (organic)
The iridescent lining of a shell, worn as a protective and motherly charm in coastal cultures.
Worth knowing: Mother of pearl is organic, made of aragonite platelets laid down by a mollusc. Acids, perfume and vinegar etch it.
- Element
- Water
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
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
Moonstone
Feldspar · Mohs 6–6.5
White with a floating sheen, linked to cycles, patience and your own timing.
- Element
- Water
- Care
- 💧 Brief water only
No guide on site yet What it pairs with
Opal
Silica (hydrated) · Mohs 5.5–6.5
Iridescent and famously changeable, said to amplify whatever mood you already brought.
Worth knowing: Opal is a hydrated silica gel rather than a crystal, and it can craze and crack if it dries out.
- Element
- Water
- Care
- 💧 Brief water only
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
Why the colour matters
Colour is the fastest way into the correspondence system, because the chakra scheme is itself colour-coded, and most traditional associations follow the colour rather than the mineralogy. It is also the least reliable guide to how a stone must be treated: two stones of the same colour can be a hard silicate and a soft copper carbonate, and only one of them survives a rinse. Each card above carries its own verdict, and the safety checker has the full reasoning.
Other colour 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 →