Assertion: bornite's color | /r/HasProperty | soft
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text: Bornite Value Price And Jewelry Information Bornite is suitable only for cabochonshe bronzy color rapidly tarnishes in air to a magnificent iridescent color display, mostly purple, but also with blue and green tonesornite is too soft and brittle for anything but a collector curiosity, although cabochons are quite attractive when they tarnish.