![Mica is formed when one quarter of the Si^(IV) in pyrophyllite are replaced by All and the resulting negative charge is balanced by K. Mica is formed when one quarter of the Si^(IV) in pyrophyllite are replaced by All and the resulting negative charge is balanced by K.](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/550153838_web.png)
Mica is formed when one quarter of the Si^(IV) in pyrophyllite are replaced by All and the resulting negative charge is balanced by K.
On the Chemical Composition and Optical Properties of the Mica of the Dublin, Wicklow, and Carlow Granites
![Mineral nomenclature in the mica group: the promise and the reality - European Journal of Mineralogy Volume 13 Number 6 — Schweizerbart science publishers Mineral nomenclature in the mica group: the promise and the reality - European Journal of Mineralogy Volume 13 Number 6 — Schweizerbart science publishers](https://content4.schweizerbart.de//thumbnail/papers/53400.pdf/1000.jpg)
Mineral nomenclature in the mica group: the promise and the reality - European Journal of Mineralogy Volume 13 Number 6 — Schweizerbart science publishers
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![Alchemy Alphabet: TALC (Talcum), soft clayey transparent mineral, incl. mica. Hydrated Magnesium silicate: Chemical formula=[Mg₃Si₄O₁₀(OH)₂] Stock Vector Image & Art - Alamy Alchemy Alphabet: TALC (Talcum), soft clayey transparent mineral, incl. mica. Hydrated Magnesium silicate: Chemical formula=[Mg₃Si₄O₁₀(OH)₂] Stock Vector Image & Art - Alamy](https://c8.alamy.com/comp/2GCGE6G/alchemy-alphabet-talc-talcum-soft-clayey-transparent-mineral-incl-mica-hydrated-magnesium-silicate-chemical-formula=-mgsiooh-2GCGE6G.jpg)
Alchemy Alphabet: TALC (Talcum), soft clayey transparent mineral, incl. mica. Hydrated Magnesium silicate: Chemical formula=[Mg₃Si₄O₁₀(OH)₂] Stock Vector Image & Art - Alamy
![Harley Waxing UK - Gold Strip Wax Mica Formula Best for Large Areas 1 Case = (6) 15 Oz. - 425 Gram Containers (Gold-Soft X 6) | Waxing, Resin uses, Cleanser and toner Harley Waxing UK - Gold Strip Wax Mica Formula Best for Large Areas 1 Case = (6) 15 Oz. - 425 Gram Containers (Gold-Soft X 6) | Waxing, Resin uses, Cleanser and toner](https://i.pinimg.com/originals/c6/95/cf/c695cfdfa7996677e8061b33ba59bf1b.png)