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Ametrine | | Ametrine: Encyclopedia - Ametrine | | | Ametrine, also known as Trystine, is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia, although there are deposits being exploited in Brazil and India.
The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
Artificial ametrine can be crea ...
| | | Ametrine | | |
| | | Ametrine: Encyclopedia - Ametrine
Ametrine
Ametrine, also known as Trystine, is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia, although there are deposits being exploited in Brazil and India.
The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
Artificial ametrine can be created by differential heat treatment of amethyst.
The trade name is Bolivianite.
Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen, after he received the Anahi mine in Bolivia as a dowry.
Categories: Quartz varieties | Gemstones
Other related archivesBolivia, Brazil, Europe, Gemstones, India, Quartz varieties, Spanish, amethyst, citrine, conquistador's, crystal, iron, oxidation, quartz, temperature
 Adapted from the Wikipedia article "Ametrine", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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