KnowAmber
Fossil resin · Mohs 2–2.5
Fossilised tree resin, warm to the touch, worn for protection and vitality for millennia.
- Chakra
- Solar Plexus & Sacral
- Element
- Fire
- Zodiac
- Leo
- Care
- 💧 Brief water only
Crystal database · Colour
Yellow Crystals
Every yellow stone in the database, with what it is made of and what it is traditionally used for.
Yellow is the solar plexus colour, the seat of will and confidence, and the yellow stones are traditionally the money and nerve stones. Be sceptical about what you are buying here more than in any other colour: most commercial citrine is heat-treated amethyst, and pyrite is famously not gold. Neither fact makes them less useful, but you should know which one is in your hand.
7stones listed
3safe in water
2keep out of water
4with a full guide
Cacoxenite
Phosphate inclusion
Golden needles growing inside amethyst or quartz, sold as a stone of large-scale change.
Worth knowing: Cacoxenite is an inclusion rather than a standalone crystal. What is sold as cacoxenite is host quartz or amethyst with the mineral growing inside it.
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
Citrine
Quartz · Mohs 7
Warm yellow quartz tied to money and nerve, and the most commonly treated stone in the trade.
Worth knowing: Most commercial citrine is amethyst that has been heat-treated to turn yellow. Natural citrine is paler and much rarer.
- Chakra
- Solar Plexus
- Element
- Fire
- Care
- 💧 Water safe
Jasper
Chalcedony · Mohs 7
Opaque, earthy and patterned, valued for endurance rather than for any quick effect.
- Chakra
- Root
- Element
- Earth
- Care
- 💧 Water safe
No guide on site yet What it pairs with
Pyrite
Iron sulfide · Mohs 6–6.5
Brassy gold cubes, fool's gold, traditionally the stone of nerve in money matters.
- Chakra
- Solar Plexus
- Element
- Fire
- Care
- 💧 Keep dry
No guide on site yet What it pairs with
Tiger's Eye
Quartz · Mohs 7
Golden banded quartz with a moving stripe of light, tied to nerve that keeps its eyes open.
- Chakra
- Solar Plexus
- Element
- Fire
- Care
- 💧 Water safe
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 →