Jasper
6.5–7Hardness (Mohs)
SiO₂Chemistry
42Known origins & mines
Opaque patterned microcrystalline quartz with endless variety names — ocean jasper from Madagascar's Kabamby coast, Biggs picture jasper from Oregon's John Day, Australian mookaite from Western Australia's Kennedy ranges.
Known origins & mines
Marovato Ocean Jasper Coast · Madagascar
Ocean jasper orbs surface only at low tide on remote Ambolobozo peninsula cliffs — the 1999 Paul Obeniche rediscovery created instant minera…
Biggs Junction Picture Jasper · United States
John Day formation landslides revealed Biggs picture jasper — brown landscape scenes cut like paintings defined Oregon lapidary identity.…
Kennedy Range Mookaite Hills · Australia
Western Australian radiolarite hills yield mookaite in mustard, burgundy and cream — Australian souvenir carving staple with unique porcelan…