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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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EUDIALYTE
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Eudialyte is a fairly rare mineral. It has a poor crystal habit, so when crystals are found, they are prized by collectors. However, it is very attractive when polished for use in jewelry. It has a deep red color in a matrix of black, gray and white.
The Kola Peninsula, Russia, is the locality which produces much of the eudialyte seen on the market today. Eudialyte is a source of zirconium.
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Chemistry: Na4(Ca,Ce)2(Fe++,Mn,Y)ZrSi8O22(OH,Cl)2 ♦ Moh's hardness: 5 - 5.5 ♦ Variety of: Quartz ♦ Transparency: transparent to translucent ♦ Crystal system: trigonal ♦
Luster: vitreous ♦ Color: pinkish red, red, yellow, yellowish brown, violet ♦ Localities: include Quebec; Kola Peninsula, Russia; Greenland, Madagascar, USA
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