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Aquamarine
A form of beryl (like emerald), six-sided crystals, harder than apatite, quartz and the feldspars.
Calcite
A carbonate that is found in white, colorless, pale shades of gray, yellow, red, green, blue, brown to black, vitreous, when cleaved forms a perfect rhombohedron, Often develops with apatite, and fluorite.
Carnelian
A clear red/deep orange chalcedony, consisting of quartz with iron impurities which give it a translucent red or deep orange color. Found mainly in Brazil, Japan and India.
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