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The Rock Professor has provided you with a mineral
information card. Print on stock paper, and cut out to
enhance your rock and mineral products.
To print: with your cursor, highlight the entire card below,
right click and select print, then click on "selection"
and print.
| THE ROCK PROFESSOR |
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AMETRINE
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Ametrine (also known as trystine) is a variety of QUARTZ that displays both amethyst and citrine in the same mineral. Ametrine is mined mostly in Bolivia, with some being found in Brazil and India.
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Although ametrine occurs in nature, some ametrine products on the market have been artifically colored by the irridiation or heating of quartz.
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Chemistry: Silicon dioxide ♦ Class: Tectosilicate, variety of the quartz group ♦
Color: Two distinct colors, yellow-orange and purple ♦ Luster: Vitreous ♦
Transparency: Transparent to translucent ♦ Crystal system: Trigonal hexagonal prisms ♦
Moh's hardness: 7 ♦ Localities: Bolivia, Brazil, India
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