A specimen of pale blue Gibbsite from Copper Mountain, Box Elder County, Utah, U.S.A.
Mineral Species: Gibbsite
Mineral Group: Hydroxides
Chemical Formula: Al(OH)3
Hardness: 2.5-3
Crystal System: Monoclinic
Further information available on our Gibbsite Information Page.
Each specimen will vary is shape, size and colour. These are mounted in their box and may be removed with caution.
