Tungsten is a very hard and dense metal with hardness between 8.5 and 9.5 on the Mohs hardness scale (Diamonds are a 10 - the highest). Its density, similar to that of gold, allows tungsten to be used in jewelry as an alternative to gold or platinum. Tung???? ?????? ?????? ?????? ?????? ?????? Ò«?????? ?????? ?????? ?????? ?????? ?????? Ò«?????? ?????? ?????? ?????? ?????? ?????? Ò«?????? ?????? ?????? ?????? ?????? ?????? Ò«?????? ?????? ?????? ?????? ?????? ??????
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