Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Category
Sedimentary (Alluvial Deposit)
Browse sedimentary (alluvial deposit) specimens identified by the Rock Identifier community.
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Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Puddingstone
Conglomerate
Sedimentary
Conglomerate
Clastic Sedimentary Rock (Puddingstone)
sedimentary
Conglomerate
Clastic Sedimentary Rock
sedimentary
Red Jasper (Siltstone variant)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Rough Sapphire (Corundum)
Corundum (Al2O3)
mineral
Gold Nugget
Native Gold (Au)
mineral
Blue Sapphire
Corundum (Al2O3 with trace amounts of Fe and Ti)
gemstone
Rounded quartz-rich cobble
Likely quartzite or quartz-rich sandstone; exact identification requires a fresh break or hardness test
sedimentary
Conglomerate
Clastic sedimentary rock (Conglomerate)
sedimentary
Hessonite Garnet (Grossular)
Ca3Al2(SiO4)3 (Grossular Garnet)
gemstone
Yellow Quartzite Pebble
Quartzite (SiO2)
metamorphic
Yellow Quartzite (or Quartz River Pebble)
Silicon Dioxide (SiO2)
metamorphic
Jasper pebble (possibly Red Jasper or Lake Superior Agate/Jasper mix)
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Agate (River Pea)
Microcrystalline Chalcedony (SiO2)
sedimentary
Diamond
C (Carbon)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (and Quartz Gravel)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Conglomerate
Clastic sedimentary rock (Conglomerate)
sedimentary
Quartzite pebble
Quartzite
metamorphic
Quartz (Peach/Pink Variety)
Silicon Dioxide (SiO2)
mineral
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Tumbled yellow chalcedony (likely citrine or yellow jasper)
Microcrystalline quartz, SiO₂; exact identification requires testing
mineral
Limonite-stained Chert
Microcrystalline Quartz (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)
sedimentary
Sandstone
Arenite
sedimentary
Chalcedony (Agate / Chert)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Gold
Native Gold (Au)
Mineral
Diamond
Diamond (pure carbon C)
mineral
Chalcedony Pebble / Rough Agate
Silicon Dioxide (SiO2)
mineral
Tumbled milky quartz pebble
Quartz, silicon dioxide (SiO₂), microcrystalline to coarsely crystalline variety
mineral
Diamond
Diamond (Pure Carbon - C)
mineral
Diamond
Diamond (C)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Blue Sapphire (faceted in jewelry)
Corundum (Al2O3)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary