＜ ＜ ＜Knowledge unit of Minerals ＞ ＞ ＞
Bornite
Introduction
Physical Properties
Chemical Properties
Occurences
Notable Locality
Major Uses
Diagnostic Features

Diagnostic Features

(1)Reddish bronze color

(2)Grayish black streak

(3)Surface readily tarnishes to iridescent deep blue, purple, or red color

(4)Low hardness

          

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