Conglomerate
Conglomerate (Detrital Sedimentary Rock)
Category
Browse mineral, often found as detrital grains in sedimentary rocks specimens identified by the Rock Identifier community.
Conglomerate
Conglomerate (Detrital Sedimentary Rock)
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Glauconitic Sandstone (Greensand)
Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Chert (Flint)
Microcrystalline silica (SiO2)
Magnetite
Magnetite (Fe3O4)
Quartz
Silicon Dioxide (SiO₂)
Quartz (likely) or a Quartzite Pebble
Silicon dioxide (SiO2) for quartz. If it's quartzite, it's a metamorphic rock primarily composed of quartz.
Unidentifiable Rock Fragment
Milky Quartz
Quartz (SiO2)
Sandstone
Arenite or Sandstone
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Quartz
Silicon Dioxide (SiO2)
Sandstone (likely Quartz Sandstone)
Arenite (SiO2 based)
Chert (with Limestone/Dolomite host)
Microcrystalline Quartz (SiO2)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Litharenite)
Quartz (Sand Grain size)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (Ferruginous)
Sandstone (mainly SiO2 with Fe2O3 staining)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Sandstone
Quartz Sandstone (predominantly)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
Sandstone (likely Arkosic)
Arenite (SiO2 with KAlSi3O8)
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Pebble)
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Micaceous)
Arenite (primarily SiO2 with Phyllosilicates)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (SiO2 based with various mineral cements)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (Sedimentary Rock)
Red Sandstone
Arenite
Sandstone
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Sandstone (Clastic sedimentary rock, predominantly SiO2 with Fe2O3 cement)