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Brazil is world renown for the quality of its
amethyst. Bahia and Rio Grande do Sul are two important amethyst
producing states in Brazil.
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Citrine
is the yellow variety of quartz. Citrine has excellent luster
is very clear and makes an excellent inexpensive jewelry stone. |
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Topaz
is one of the most valuable and versatile gemstones. It is both
harder and less common than Citrine or Amethyst. |