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Comments: Transparent to white, tabular-prismatic gibbsite crystals.
Location: Saga Quarry, Langesundfjord, Oslo Region, Norway.
Scale: Crystal size 1 mm.
© John Veevaert
Gibbsite: Al(OH)3 Doyleite: Al(OH)3
Comments: Botryoidal spheres of doyleite growing along with its dimorph gibbsite. Analysis shows that doyleite dominates the mix. There are also minor canary yellow phlogopite crystals.
Location: Baoshan, Yunnan, China.
Scale: 8 x 6.5 x 1.9 cm.
© Fabre Minerals