Gold Nugget / Native Gold
Native Gold (Au)
mineral
Category
Sedimentary (Alluvial Deposit)
Browse sedimentary (alluvial deposit) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Alluvial Deposit) in the encyclopedia
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Yellow Jasper (Chert) Pebble
Silicon Dioxide (SiO2) with Iron Oxides
sedimentary
Ruby (Raw/Rough)
Corundum (Al2O3 with Chromium trace)
mineral
Quartz Pebble
Silicon dioxide (SiO2)
sedimentary
Conglomerate
Pebble Conglomerate / Clastic Sedimentary Rock
sedimentary
Likely weathered river pebble
Indeterminate lithology; possibly fine-grained sandstone, siltstone, or chert
sedimentary
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
sedimentary
Conglomerate
Conglomerate
sedimentary
Conglomerate pebble
Polymictic conglomerate (clast-supported)
sedimentary
Chalcedony / Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Conglomerate
Conglomerate rock
sedimentary
Weathered feldspathic sandstone
Quartz–feldspar sandstone (arkose), with iron-oxide staining
sedimentary
Arkosic Sandstone
Arkose
sedimentary
Carnelian
Carnelian (SiO2) - Chalcedony variety
mineral
Milky Quartz (Gold-bearing Prospecting Specimen)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Weathered conglomeratic sandstone
Polymictic conglomerate or pebbly sandstone, likely iron-stained
sedimentary
Conglomerate
Clastic Sedimentary Rock (Puddingstone)
sedimentary
Gold Nugget
Gold (Au)
mineral
Conglomerate
Clastic Sedimentary Rock
sedimentary
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Conglomerate
Clast-supported polymictic conglomerate; rounded quartz and other rock fragments in a dark matrix
sedimentary
Conglomerate
Polymictic Conglomerate
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2 with iron oxide inclusions)
sedimentary
Quartz (Tumbled/Polished Pebble)
Silicon Dioxide (SiO2)
mineral
Conglomerate
Clastic sedimentary rock (Conglomerate)
sedimentary
Gold Nuggests
Native Gold (Au)
mineral
River Rock (River Cobbles)
Fluvial Conglomerate Clasts (primarily composed of various minerals such as Quartz, SiO2)
sedimentary
Ruby (Cabochon)
Corundum (Al2O3)
gemstone
Rounded quartz-rich cobble
Likely quartzite or quartz-rich sandstone; exact identification requires a fresh break or hardness test
sedimentary
Likely quartz-rich stone, possibly milky quartz or chalcedony
Quartz (SiO₂), possibly microcrystalline chalcedony
mineral
Conglomerate
Clastic sedimentary rock (Conglomerate)
sedimentary
Red Jasper (Siltstone variant)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Tumbled/rounded agate (likely mossy or brecciated chalcedony)
Microcrystalline quartz, SiO₂ (chalcedony/agate)
mineral
Purple cabochon gemstone, likely amethyst or purple sapphire/spinel
Indeterminate from image; possible quartz (SiO₂), corundum (Al₂O₃), or spinel (MgAl₂O₄)
gemstone
Puddingstone
Conglomerate
Sedimentary
Diamond
C
gemstone