Fuchsite is a green variety of Muscovite Mica. It differs from most other Muscovite by having a variable amount of trivalent Chromium substituting for Aluminum within the mineral. Chromium is the source of Fuchsite’s green color. It sometimes has Ruby Crystals which are completely opaque and unsuitable as gemstones, but are well colored and contrast strikingly against the green matrix of the Fuchsite.
Ruby is a light pink to blood red gemstone which is a variety of the mineral Corundum. The common red color is caused by the element Chromium. It is considered on of the four precious stones including Sapphire, Emerald, and Diamond. The price is primarily determined by color, clarity, cut and carat.