Bismuth Bi - 01.CA.05(Strunz) (from Germany, grown lab) Here we have some Native bismuth ‘crystals’.
Bismuth Bi - 01.CA.05(Strunz) (from Germany, grown lab) Here we have some Native bismuth ‘crystals’. They form as a ‘hopper’ type of crystal network. They have a bright metallic luster and show a beautiful iridescent rainbow play of colors. Bismuth is the last element to decay in the universe. The average life of an estimated 20 trillion years. It is equally rare in the crust than gold. -- source link
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