Mica Meaning and Properties

Mica History

Mica is a natural stone with a vitreous to pearly luster, which forms in multiple distinct layers. Mica is actually a broad term that is attributed to more than 34 types of these layers. The most common form of mica is called muscovite, while other varieties include anandite, fuchsite and lepidolite. While mica has been found in various places around the world throughout history, it wasn't until the 19th century the gem was given its name and was mined for export. This stone is often ground up and used as a shimmering powder accent in jewelry and accessories, but mica is also used in makeup foundations, cement filler and an insulator in electrical cables.

Mica Metaphysical Properties

No doubt in part to mica being known for its shimmering, reflective properties, this gemstone is believed to help individuals reflect on individual qualities. Mica helps us recognize flaws without self-condemnation so we are able to effectively address negative personality traits. (After all, you can't change what you don't see.) According to metaphysical beliefs, mica is also used to reduce hostile or nervous energy. The gemstone mica is not a traditional birthstone, but is most closely associated with the zodiac signs Aquarius and Virgo. Some say mica is also connected to the heart chakra, while others believe that the pigment of the stone affects which chakra mica is associated with. To learn about the various Chakra colors, read Chakras and their Gemstones.

Mica Geological Properties

Mica is a type of silicate formed as paper-thin layers built upon each other in formations that include flat angular blades, rosettes or hexagonal columns. Mica is a metallic material since it contains reactive element metals like potassium, lithium and aluminium. For this reason, mica can feel cold to the touch. The gem mica is predominantly found in Brazil, Russia, Africa, India and Pakistan.

Mineral Information Silicate
Chemical Composition KAl2(AlSi3O10)(F,OH)2
Color Brown, colorless, gray, green, red, violet, white, yellow
Hardness 2.5 (Mohs)
Specific Gravity 2.8

Proper Care of Mica

Mica is a delicate stone with a Mohs hardness of only 2.5. It's easily scratched or carved and can be turned into a powdery substance. Often, beads and supplies made of mica are coated to protect the stone from wear and tear. To clean these materials, use a soft cloth free of impregnations. Do not use harsh cleaners or steam to clean mica and avoid wearing this stone while cleaning with bleach.

To learn more about mica and other gemstones, order your copy of Walter Schumann's revised and expanded edition of Gemstones of the World.

Designing with Mica

In jewelry-making, mica is most commonly found as a powder. This powder is used for creating colorful accents on polymer clay, resins and more. It is recommended to apply a clear top coat to prevent the pigment from wearing off over time. Natural mica can also be found as sheets that are sometimes used as a substitute for glass sheet, offering a vintage air to jewelry and décor designs since they give a slight sepia tone to materials they are placed on. Mica sheets can be easily ink-stamped, drilled, riveted and cut with scissors. Coated mica beads are sometimes mistaken for pyrite since they have an iridescent sheen over a dark grey-gold background. These tones are ideal for men's, women's and unisex jewelry designs. It is recommended to use mica sheet or beads in jewelry such as pendants and earrings rather than bracelets or other jewelry that can sometimes accidently receive impact such as from a countertop.

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