mineral general info

Gray rhombohedral goethite crystals which formed pseudomorph after siderite. A cream-coloured microcline matrix provides great contrast.

Origin: 2nd Mesabi Claim, Park County, Colorado, U.S.A.

Ex. Dave Douglass collection

Sample size: 11 x 8 x 6.5 cm

Photo courtesy of:

John Veevaert, Trinity Mineral Co

Origin: Cerro Bolivar, Venezuela

Sample size: 9.5 x 8.5 x 5.5 cm

Origin: Florissant, Teller Co., Colorado, U.S.A.

Sample size: 3.8 x 1.7 x 3.6 cm

Photo courtesy of:

Dan Weinrich

Iridescent goethite coating a quartz crystal (pseudomorph) from the Greisen Face at this famous tin mine, once the largest tin mine in the world

Origin: Mt Bischoff, Waratah, Tasmania, Australia

Sample size: 2 mm long crystal

Sample owner: Steve Sorrell

Photo courtesy of:

Steve Sorrell

Goethite on amethyst

Origin: Agate Creek, Queensland, Australia

Sample size: unknown

Sample owner: Steve Sorrell

Photo courtesy of:

Steve Sorrell