Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Category
Sedimentary Rock Or Mineral (Depending On Origin And Purity)
Browse sedimentary rock or mineral (depending on origin and purity) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock Or Mineral (Depending On Origin And Purity) in the encyclopedia
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Sandstone (likely Quartzite-rich)
Arenite (primarily SiO2)
sedimentary
Likely tumbled pale-green mineral specimen
Indeterminate; possibly serpentine, calcite, or pale jade/nephrite
mineral
Possible basaltic rock or meteorite candidate
Likely vesicular basalt; meteorite identification cannot be confirmed visually
igneous
Pebble
Clast (specifically a granule or small pebble)
Sedimentary
Milky Quartz Geode with Chlorite
Silicon Dioxide (SiO2) with Chlorite group inclusions
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Sandstone (Quartzose Pebble)
Arenite (SiO2)
sedimentary
Larimar and Fossil Coral
Pectolite (NaCa2Si3O8(OH)) and Hexagonaria/Petoskey Stone
mineral and sedimentary
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Gold in Quartz Matrix
Native Gold (Au) with Quartz (SiO2)
mineral
Banded Sandstone
Arenite with iron oxide banding
sedimentary
Gold
Native Gold (Au)
mineral
Ruby
Corundum (Al2O3:Cr)
gemstone
Ruby (in a ring setting)
Corundum (Al2O3:Cr)
gemstone
Black Opal Ring (Carved Opal)
Hydrated Silicon Dioxide (SiO2·nH2O)
gemstone
Blue cabochon gemstone ring
Uncertain; likely blue sapphire (corundum, Al₂O₃), blue topaz, or synthetic glass/spinel
gemstone
Sedimentary Breccia
Clastic Breccia (CaCO3/SiO2 matrix)
sedimentary
Diorite (possibly fine-grained variety or a related intermediate intrusive rock like a felsic gabbro or a dark granodiorite)
Diorite (Igneous rock, intrusive, intermediate composition)
Igneous Rock
Not a rock, mineral, or geological specimen
N/A
Pearl (incorporated into jewelry)
Aragonite and Calcite (CaCO3)
mineral
Chalk
Calcium Carbonate (CaCO3)
sedimentary
Diamond
Diamond (pure Carbon, C)
mineral
Vesicular Basalt (Iron Scoria)
Aphanitic Mafic Igneous Rock with Vesicular Texture
igneous
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Leopard Skin Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
sedimentary
Sandstone Pebble (Quartzite-rich)
Clastic Terrigenous Sedimentary Rock (SiO2 dominant)
sedimentary
Chert (Chert Nodule with Chalky Cortex)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Piddock-bored Mudstone
Lutite (Siltstone or Mudstone) with Pholad borings
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Silver
Ag (Native Silver)
mineral
Jasper (Mookaite style)
Jasper (Silica-rich Microcrystalline Quartz, SiO2)
sedimentary
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
mineral
Sedimentary Rock Fragments
Clastic Sedimentary Rock
sedimentary
Sandstone
Sandstone (clastic sedimentary rock)
Rock
Rough Diamond
Diamond (Native Carbon, C)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Pearl
Calcium carbonate (CaCO3) + organic conchiolin
gemstone
Black Jasper
Black Jasper (Silicate mineral - SiO2)
sedimentary
Fossil Shell
Invertebrate fossil (Mollusca)
fossil
Fluorite on Matrix
Calcium Fluoride (CaF2)
mineral