Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Category
Igneous And Metamorphic Derivative (Weathered)
Browse igneous and metamorphic derivative (weathered) specimens identified by the Rock Identifier community.
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (SiO2)
mineral
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Smoky Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Yellow Quartzite (River Pebble)
Quartzite (primarily SiO2)
metamorphic
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Mineral
Quartz (likely a weathered/tumbled piece)
Quartz (SiO₂)
Mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Basalt River Stone
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Rough Star Sapphire (Corundum)
Al2O3 (Aluminum Oxide)
mineral
General Gravel (River Rock/River Stones)
Mixed Lithic Sediments (Conglomerate Clasts)
sedimentary
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Ore/Hydrated Iron Oxide)
Limonite (mixture of FeO(OH)·nH₂O minerals, mainly Goethite, FeO(OH) and Lepidocrocite, FeO(OH))
Mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Diamond in Kimberlite
Kimberlite Matrix with Carbon (Diamond)
igneous
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sapphire (Corundum variety)
Sapphire (Al₂O₃)
Mineral
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Granite (Weathered)
Phaneritic Felsic Igneous Rock
Igneous
Diorite (weathered)
Intermediate plutonic igneous rock
igneous
Gneiss
Gneiss
metamorphic
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Quartzite Cobble
Quartzite (primarily SiO2)
metamorphic
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic