Search Results for: Optical elements any material
mineral used as an ore, a gemstone, and a crystal specimen. article by: hobart m. king , ph.d., rpg rhodochrosite: rhodochrosite cabochons illustrating the banded pink colors that are characteristic of this mineral. the specimen in the upper right is a slice from a stalactite. all stones cut from material
manganese, gemstone, ornamental stone physical and chemical properties rhodochrosite has a variable chemical composition. it is a manganese carbonate, but the manganese is frequently replaced by iron, magnesium and/or calcium as shown in this formula: (mn,fe,mg,ca)co . these substitutions of other elements...
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