Rock Identifier

Category

Sedimentary (Alluvial Deposit)

Browse sedimentary (alluvial deposit) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Alluvial Deposit) in the encyclopedia

Turbidite

Sapropel

Rock Gypsum

Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

Black Spinel (Magnesium Aluminum Oxide (MgAl2O4)) — mineral

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

River Pebble Quartzite / Granite Cobble (Quartz-rich Granitic / Quartzite Cobble) — igneous

River Pebble Quartzite / Granite Cobble

Quartz-rich Granitic / Quartzite Cobble

Rough Diamond (Diamond (Native Carbon, C)) — mineral

Rough Diamond

Diamond (Native Carbon, C)

Amber (Green variation) (Succinite) — fossil

Amber (Green variation)

Succinite

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Raw Diamond (Diamond (C)) — mineral

Raw Diamond

Diamond (C)

Basalt River Pebble (Mafic volcanic rock (Basalt)) — igneous

Basalt River Pebble

Mafic volcanic rock (Basalt)

Smoky Quartz (with possible Feldspar inclusions) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (with possible Feldspar inclusions)

Silicon Dioxide (SiO2)

Diamond (in jewelry setting) (Diamond (Native Carbon, C)) — mineral

Diamond (in jewelry setting)

Diamond (Native Carbon, C)

Diamond (Diamond (Pure Carbon, C)) — mineral

Diamond

Diamond (Pure Carbon, C)

Diamond (Diamond (Pure Carbon, C)) — mineral

Diamond

Diamond (Pure Carbon, C)

Rough Diamond (Carbon (C)) — mineral

Rough Diamond

Carbon (C)

Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

Ruby / Pink Sapphire (Corundum (Al2O3 with Chromium impurities)) — gemstone

Ruby / Pink Sapphire

Corundum (Al2O3 with Chromium impurities)

Purple Garnet (Magnesium Aluminum Silicate (Pyrope-Almandine series) Mg3Al2(SiO4)3) — gemstone

Purple Garnet

Magnesium Aluminum Silicate (Pyrope-Almandine series) Mg3Al2(SiO4)3

Black Diamond (Carbonado) (Carbonado (Polycrystalline Diamond)) — gemstone

Black Diamond (Carbonado)

Carbonado (Polycrystalline Diamond)

Gold Flakes (Native Gold (Au)) — mineral

Gold Flakes

Native Gold (Au)

Corundum (Sapphire) (Corundum (Al2O3)) — mineral

Corundum (Sapphire)

Corundum (Al2O3)

Milky Quartz with inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with inclusions

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine Quartzite) (Silicon Dioxide (SiO2)) — metamorphic

Yellow Quartz (Citrine Quartzite)

Silicon Dioxide (SiO2)

Blue Sapphire (Corundum (Al2O3 with iron and titanium trace elements)) — mineral

Blue Sapphire

Corundum (Al2O3 with iron and titanium trace elements)

Ruby (Rough/Raw) (Corundum (Al2O3:Cr)) — mineral

Ruby (Rough/Raw)

Corundum (Al2O3:Cr)

Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

Ruby (Corundum (Al2O3 with Chromium traces)) — mineral

Ruby

Corundum (Al2O3 with Chromium traces)

Painted Garden Rock (Coated Siltstone or Mudstone) — sedimentary

Painted Garden Rock

Coated Siltstone or Mudstone

Pyrite in Quartz (Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)) — mineral

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

Jasper (Iron-stained Quartzite/Chert) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (Iron-stained Quartzite/Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper in Quartz (River Cobble) (Silicon Dioxide (SiO2) with Ferric Iron inclusions) — sedimentary

Jasper in Quartz (River Cobble)

Silicon Dioxide (SiO2) with Ferric Iron inclusions

Granitic Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Granitic Gneiss

Gneiss (High-grade regional metamorphic rock)

Rough Diamond (Diamond (C)) — mineral

Rough Diamond

Diamond (C)

Chert (Flint) River Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint) River Pebble

Microcrystalline Quartz (SiO2)

Leopard Skin Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — sedimentary

Leopard Skin Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Amber (Succinite) — mineral

Amber

Succinite

Yellow Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Jasper (SiO2) — sedimentary

Jasper

SiO2

Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

Yellow Quartzite (River Pebble) (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Yellow Quartzite (River Pebble)

Quartzite (primarily Silicon Dioxide, SiO2)

Chalcedony (Blue Agate Nodules) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Blue Agate Nodules)

Silicon Dioxide (SiO2)

Conglomerate (Clastic Sedimentary (Conglomerate)) — sedimentary

Conglomerate

Clastic Sedimentary (Conglomerate)

Ruby (Corundum (Al2O3:Cr)) — gemstone

Ruby

Corundum (Al2O3:Cr)