Mica
The stone of shimmer and layers
The mineral that splits into thin, glittering sheets; known for its shine and found in many rocks.
Mica is a group of silicate minerals that split into thin, flexible, shiny sheets. It is common in many rocks, such as granite, schist and gneiss, and is mined in places including India, Madagascar, Russia and the United States. The best-known members are muscovite, biotite, phlogopite and lepidolite. In jewellery it is mostly used in small pieces, and mica beads are often coated to protect them.
General information
- Name
- Mica
- Mineral group
- Mica group (sheet silicates)
- Chemical formula
- XY₂₋₃(Al,Si)₄O₁₀(OH,F)₂
- Colours
- Brown, greenish, grey, black, violet or nearly colourless, with a pearly lustre
- Hardness (Mohs)
- 2–4
- Specific gravity
- 2.8–3.0
Zodiac signs
- Aquarius
- Virgo
Traditional meaning
- Layers: Traditionally a reminder that there is depth beneath the surface.
- Shimmer: Traditionally adds lightness and joy.
- Self-reflection: Traditionally invites gentle self-reflection, without harsh judgement.
- Grounding: Traditionally, in its brown shades, connects you to the earth and the rock it comes from.
- Renewal: Traditionally symbolises opening a new chapter, layer by layer.
Care
Soft and brittle: it splits easily into sheets and can be scratched by hand. Keep it away from knocks and pressure, clean only with a soft damp cloth, and avoid soaking, strong chemicals and ultrasonic cleaners.
Meanings, zodiac signs and elements come from various traditions. They are not scientific or medical information and differ between sources.