Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Category
Browse sedimentary (secondary classification for a weathered mineral specimen) specimens identified by the Rock Identifier community.
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Granite Cobble
Felsic Intrusive Igneous Rock
Granite Pebble (Salt and Pepper Granite)
Felsic Intrusive Igneous Rock (Granite)
Weathered Basalt
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Granite Pebble
Phaneritic Felsic Igneous Rock
Yellow Jasper
Silicon dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Pink Granite River Pebble
Phaneritic Felsic Igneous Rock (Granite)
Granite River Cobble
Phaneritic Felsic Igneous Rock
Chrysocolla
Hydrated copper silicate - Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
Basalt
Basalt (Mafic volcanic rock)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz Geode
Silicon Dioxide (SiO2)
Basalt with Amygdules
Amygdaloidal Basalt
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Green Quartzite
Quartzite (primarily SiO2 with inclusions)
Yellow Quartz
Silicon Dioxide (SiO2)
Orange Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
Banded Agate
Agate (Silicon Dioxide, SiO2)
Siltstone with Iron Staining
Siltstone (primarily SiO2 with Fe2O3 staining)
River Rock (Basalt)
Aphanitic Basaltic Rock
Agate
Silicon dioxide (SiO2)
Granite
Phaneritic plutonic rock (composed primarily of Quartz, Feldspar, and Mica)
Veined Limestone (Micrite) with Quartz/Calcite Veins
Calcium Carbonate (CaCO3) with Silicate or Carbonate inclusions
Quartzite Pebble
Quartzite (primarily SiO2)
Diamond
Diamond (pure Carbon, C)
Basalt
Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)
Red Sandstone
Arenite (Ferruginous Sandstone)
Druzy Agate (Star-cut Geode Slice)
Silicon Dioxide (SiO2) - Microcrystalline and Macrocrystalline Quartz
Variscite in Matrix
Variscite (AlPO4 · 2H2O)
Malachite in Host Rock
Malachite - Cu2CO3(OH)2
Barite
Barium Sulfate (BaSO4)
Hematite
Iron(III) oxide (Fe2O3)
Ironstone Concretion (Limonite/Hematite Nodules)
Ironstone (principally Limonite FeO(OH)·nH2O or Hematite Fe2O3 mixed with silica/clay)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Chert Nodules
Microcrystalline Quartz (SiO2)
Granite Cobble
Phaneritic Plutonic Felsic Rock
Quartz / Limestone Gravel
SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Green Calcite
Calcium Carbonate (CaCO3)
Chert (Hagstone/Adder Stone)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Diorite (River Pebble)
Intermediate plutonic igneous rock