Which Of The Following Statements About Gemstones Is False?

(Correct Answer Below)

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Which Of The Following Statements About Gemstones Is False?

Ruby is a gemstone variety of the common mineral corundum. Many gemstones come from pegmatites, which are particularly coarse-grained igneous rocks. A gemstone is a mineral that has value because of its rarity and beauty. In order to be considered precious or semiprecious, a gemstone must be transparent.
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