Jasper, polished surface
Origin: Pack Saddle, Western Australia, Australia
Sample size: 3 x 18 x 27 cm
Origin: Orsk, Ural, Russia
Sample size: 4 x 6 cm
Origin: Munyati River, 200 km West of Harare, Zimbabwe
Sample size: 3 x 4.5 cm
Origin: Griqualand, Republic of South Africa
Sample size: 6 x 6 cm
Origin: unknown
Sample size: 10 x 12 cm
Photo courtesy of:
Diederik Visser
Diederik Visser Minerals & Petrological Services
Jasper pseudomorph after
barite
Origin: near Fruita, Mesa County, Colorado, U.S.A.
Sample size: 2.8 x 1.4 x 0.7 cm (left), 2.5 x 0.7 x 0.6 cm (right)
Slab of lustrous, massive, native
copper
in jasper or brecciated conglomerate. The exhibit face has been sprayed with
lacquer to improve presentation, which is nomal for specimens of this type.
Origin: Kingston Lode, Keweenaw Peninsula, Michigan, U.S.A.
Ex. Richard Hauck collection
Sample size: 7.4 x 6.0 x 0.9 cm
Origin: Madagascar
Sample size: 20.2 x 15.4 x 0.7 cm
Photo courtesy of:
Rob Lavinsky
Rock crystal
Smoky quartz
Citrine
Amethyst
Rose quartz
Milky quartz
Included quartz
Other quartz types
Agate
Chalcedony