pietersite
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/27/Chinese_pietersite_01.jpg/220px-Chinese_pietersite_01.jpg)
Noun
[edit]pietersite (plural pietersites)
- a rare dark-gray or reddish breccia aggregate (rock made up of fragments embedded in a matrix), comprised mostly of hawk's eye and tiger's eye