Description
Natural Earth Mine Genuine Marcasite Swiss Machine Cut
- Chemical composition : iron sulfide (FeS2),
- Heardness : 6 to 6.5 ,
- Specific gravity : 4.89 ,
- Luster : Metallic,
- Color/Streak : pale-bronze yellow tarnishes brown/grayish-black ,
Natural Earth Mine Genuine Marcasite Swiss Machine Cut
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