Crystals
Kambaba jasper
Trade-named orbicular volcanic rock Quartz and alkali feldspar groundmass Radial amphibole-rich aggregates Fine aegirine overgrowths and rims Composite hardness approximately 5–7 Commercially associated with Madagascar Kambaba Stone: Orbicular Volcanic Rock,...
Kambaba jasper
Trade-named orbicular volcanic rock Quartz and alkali feldspar groundmass Radial amphibole-rich aggregates Fine aegirine overgrowths and rims Composite hardness approximately 5–7 Commercially associated with Madagascar Kambaba Stone: Orbicular Volcanic Rock,...
Leopardite jasper
Trade-named spotted volcanic rock Commonly spherulitic or orbicular rhyolite Quartz and alkali-feldspar groundmass Dark oxide-rich rings and margins Composite hardness approximately 6–7 Opaque, polishable, and pattern-dependent Leopardite: Ringed Spherulites, Spotted...
Leopardite jasper
Trade-named spotted volcanic rock Commonly spherulitic or orbicular rhyolite Quartz and alkali-feldspar groundmass Dark oxide-rich rings and margins Composite hardness approximately 6–7 Opaque, polishable, and pattern-dependent Leopardite: Ringed Spherulites, Spotted...
Mookaite jasper
Locality-defined ornamental rock Silicified porcellanite in Windalia Radiolarite Late Early Cretaceous marine origin Dominant material: SiO2-rich aggregate Mohs approximately 6.5–7 in dense zones Cream, mustard, burgundy, plum, and mauve Mookaite:...
Mookaite jasper
Locality-defined ornamental rock Silicified porcellanite in Windalia Radiolarite Late Early Cretaceous marine origin Dominant material: SiO2-rich aggregate Mohs approximately 6.5–7 in dense zones Cream, mustard, burgundy, plum, and mauve Mookaite:...
Oceanic jasper
Locality-defined orbicular siliceous rock Spherulitic chalcedony and silicified volcanic host Quartz, chalcedony, agate, and drusy cavities Mohs approximately 6.5–7 Concentric orbs, halos, ribbons, and crystal pockets Marovato and Kabamby, Sofia...
Oceanic jasper
Locality-defined orbicular siliceous rock Spherulitic chalcedony and silicified volcanic host Quartz, chalcedony, agate, and drusy cavities Mohs approximately 6.5–7 Concentric orbs, halos, ribbons, and crystal pockets Marovato and Kabamby, Sofia...
Picasso jasper
Trade-named patterned carbonate stone More precisely Picasso Marble or Picasso Stone Fine-grained marble and limestone Dark manganese- and iron-bearing linework Carbonate matrix approximately Mohs 3–4 Classic association with southwestern Utah...
Picasso jasper
Trade-named patterned carbonate stone More precisely Picasso Marble or Picasso Stone Fine-grained marble and limestone Dark manganese- and iron-bearing linework Carbonate matrix approximately Mohs 3–4 Classic association with southwestern Utah...
Picture jasper
Descriptive category of scenic jasper Opaque microcrystalline silica-rich stone Layering, dendrites, veins, and oxide fronts Cream, blue-gray, tan, ochre, rust, and black Mohs approximately 6.5–7 Strong Pacific Northwest lapidary tradition...
Picture jasper
Descriptive category of scenic jasper Opaque microcrystalline silica-rich stone Layering, dendrites, veins, and oxide fronts Cream, blue-gray, tan, ochre, rust, and black Mohs approximately 6.5–7 Strong Pacific Northwest lapidary tradition...