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- Karat
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Karat (abbreviated Kt or K) is calculate
of the fineness of gold equal to 1/24 part. Pure gold is 24
karat gold, 18K gold is 18/24 gold, 14K gold is 14/24 gold,
12K gold is 12/12 (precisely half gold). Note that the term
carat is used as determine of weight for gemstones.
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- Kunzite
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Kunzite is a hard pink gemstone, an assortment
of spodumene with the awesome color coming from manganese.
It was named after George Frederick Kunz, who in fact discovered
it in Connecticut, USA in 1901. It is currently mined in Brazil,
USA, Canada, CIS, Mexico and also Sweden.
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- Koroit Opal
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Opals from the Koroit mines in the Australia.
These are the hardest of the rock opal types
and frequently referred to as "Koroit picture opals" since
of the patterns.
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