Amazonite
K(AlSi3O8) - Lead-bearing Microcline (Potassium Feldspar)
Category
Browse this is not a rock or mineral specimens identified by the Rock Identifier community.
Amazonite
K(AlSi3O8) - Lead-bearing Microcline (Potassium Feldspar)
Quartz Geode (Druzy)
Crystalline Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt
Granite Gneiss
Felsic Gneiss
Dragon Blood Jasper (Epidote with Piedmontite or Quartz)
Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
Quartz Conglomerate
Quartz Conglomerate (clastic sedimentary rock)
Diorite
Phaneritic Intermediate Igneous Rock
Red Granite
Phaneritic Felsic Igneous Rock
Greenstone / Quartzite Pebble
Metamorphosed Quartz-rich Rock
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
Milky Quartz (Gold-bearing Prospecting Specimen)
Silicon Dioxide (SiO2)
Granite (Pink/Red Orthoclase variety)
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
Granite
Granite
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Greywacke (River Slikenside)
Greywacke (Lithic Sandstone)
Cinnabar in Quartz
Silicon Dioxide (Quartz, SiO2) with Mercury Sulfide inclusions (Cinnabar, HgS)
Quartz with Iron Staining
Silicon Dioxide (SiO2)
Massive Quartz
Silicon Dioxide (SiO2)
Shale with Siltstone layering
Sedimentary Clastic Rock (Mudstone/Shale)
River Cobble (Basaltic/Andesitic)
Mafic Igneous Porphyritic Rock
Shale
Shale (composition varies: primarily clay minerals and quartz)
Granite
Granite (Felsic intrusive igneous rock)
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
Granodiorite (Gneissic texture)
Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)
Basalt (Vesicular)
Basalt (Extrusive Volcanic Rock)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Smoky Quartz (with possible Garnet inclusions)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Gold Ore
Native Gold in Quartz (Au)
Obsidian
Volcanic Glass (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Marble
Recrystallized Calcite (CaCO3) Rock
Azurite
Azurite (Cu3(CO3)2(OH)2)
Vesicular Basalt (Scoria)
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Granite
Granite (Phaneritic intrusive igneous rock)
Amethyst
SiO2 (Silicon Dioxide)
Green Tourmaline
Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Greenstone (Amygdaloidal Basalt)
Amygdaloidal Basalt (frequently composed of Plagioclase Feldspar, Pyroxene, and Olivine with Chlorite inclusions)
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Yellow Quartzite (River Pebble)
Quartzite (SiO2)