Gabbro
Gabbro
igneous
Category
Sedimentary (Physico Chemical Precipitate)
Browse sedimentary (physico chemical precipitate) specimens identified by the Rock Identifier community.
Diamond (in jewelry setting)
Adamantine Carbon (C)
mineral
Gold
Native Gold (Au)
mineral
Gold
Native Gold (Au)
mineral
Banded Agate (Tumbled)
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite with Hematite staining
Quartzite (SiO2) with iron oxide inclusions
metamorphic
Hypersthene
Hypersthene ((Mg,Fe)SiO3)
mineral
Quartzite (River Stone)
Silicon Dioxide (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite with Iron Inclusions
Metamorphic Silicon Dioxide (SiO2) with impure Limonite/Hematite
metamorphic
Diabase
Diabase (also known as Dolerite)
igneous
Quartzite
Metamorphic Rock (Mainly SiO2)
metamorphic
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Kidney Stone (Renal Calculus)
Calcium oxalate monohydrate (Whewellite) / CaC2O4·H2O
mineral
Quartzite with Quartz Vein
Quartzite (primarily SiO2)
metamorphic
Riverstone Quartzite
Quartzite (primarily SiO2)
metamorphic
Agate (or Chalcedony)
SiO2 (Silicon Dioxide) - a cryptocrystalline variety of quartz
Mineral
Native Gold Nugget
Native Gold (Au)
mineral
Gold Nuggest
Native Gold (Au)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Ruby (in costume jewelry context)
Corundum (Al2O3) with Chromium impurities
mineral
Gold Ore / Native Gold
Native Gold (Au)
mineral
Rhyolite
Rhyolite
igneous
Lapis Lazuli (polished cabochon)
Lazurite-rich metamorphic rock (approx. Na6Ca2Al6Si6O24(SO4,S,Cl)2)
metamorphic
Honey Calcite (Orange Onyx)
Calcium Carbonate (CaCO3)
mineral
Quartzite River Rock
Quartzite (Silicon Dioxide, SiO2)
metamorphic
Banded Agate (Gray/White)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Pink Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
mineral
Blue Aragonite
Aragonite (Calcium Carbonate, CaCO3)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite (River Pebble)
SiO2 (recrystallized Quartz)
metamorphic
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Quartz (Silicon Dioxide, SiO2)
mineral