🔎 UNIDENTIFIED I have about a one inch square silvery metalic cube of some ore weighs 108 grams

HERE IT IS
 

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Upvote 3
Nice specimen.

The appearance and large cubic crystal form are very characteristic for pyrite (iron sulphide). Although pyrite is usually a golden or orangey yellow, it can sometimes be so pale that the yellow tinge is barely noticeable and tarnishing will also take away the yellowness.

 

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Could be galena ? Just a guess.
 

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Galena is also a possibility, but you can easily tell them apart. Galena is soft and you can readily scratch it with your fingernail. Pyrite is very hard to the extent you'd need a steel nail to scratch it.
 

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