Andreas Moen Posted September 2, 2023 Share Posted September 2, 2023 Hi I have this crystal like mineral which have been laying around, and I've tried on several occations to find out what it is, but without results. So I hope someone here can give me insight. It's been handed over so It's not found by me in nature. I don't know if it's natural og man-made. It is rock solid and 12 cm wide and 7cm high on average and weighs 0.47kg. It feels like an average rock considering its size and is non-magnetic. I've speculated if it is bismuth, but from what i've seen it's not quite the same in its raw state. But I may be wrong. Any ideas? Link to comment Share on other sites More sharing options...
jasong Posted September 3, 2023 Share Posted September 3, 2023 If I had to take a pure guess, I'd say carborundum (silicon carbide). If so, it should scratch glass if you want to do a test. Something about that doesn't look natural to me. Either man made, or maybe it's a pseudomorph of something, probably hematite now, so a streak test would show that (assuming it doesn't scratch glass and isn't carborundum first). Link to comment Share on other sites More sharing options...
Andreas Moen Posted September 3, 2023 Author Share Posted September 3, 2023 Thanks alot. You are spot on. It did also scratch glass. As I understand, the mineral carborundum is man-made and used in veriety of areas, especially industry. Link to comment Share on other sites More sharing options...
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