Azurite in Gossan
Azurite (Cu3(CO3)2(OH)2) in Limonite/Goethite matrix
mineral
Category
Mineral Health
Browse mineral health specimens identified by the Rock Identifier community.
Learn about Mineral Health in the encyclopedia
View all →
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Epidote with Quartz and Feldspar
Ca2(Al2,Fe3+)(SiO4)3(OH) (Epidote complex)
metamorphic
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Garden Quartz (Shaman Quartz)
Silicon Dioxide (SiO2) with various inclusions (Hematite, Chlorite, Feldspar)
mineral
Schist
Schist
metamorphic
Vesicular Basalt (Amygdaloidal)
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Rugose Coral (Horn Coral)
Order Rugosa (extinct fossilized coral)
sedimentary
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
sedimentary
Slickenside in Limestone
Tectonized Limestone / Calcite (CaCO3)
metamorphic (localized) or sedimentary
Sandstone
Arenite
sedimentary
Granite
Phaneritic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
igneous
Piddock bored rock (likely Mudstone or Shale)
Ichnofossil (Gastrochaenolites borings) in Fine-grained Sedimentary Rock
sedimentary
Green Aventurine (Tumbled Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Rose Quartz
Rose Quartz (SiO₂)
Mineral
Peach Aventurine
Quartz variety (SiO2 + Hematite/Goethite inclusions)
mineral
Yellow Quartz (Citrine type/Tumbled Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (likely tumbled or naturally water-worn)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Gneis
Gneiss (High-grade metamorphic rock)
metamorphic
Granite
Granite (phaneitic intrusive igneous rock)
igneous
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
igneous
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Fossilized Shark Tooth (Partial)
Elasmobranchii (fossil tooth fragment)
sedimentary
River Quartzite Slik
Quartzite (SiO2)
metamorphic
Granite
Intrusive igneous rock (Acidic)
igneous
Gneiss
Gneiss
metamorphic
Pegmatite
Granitic Pegmatite
igneous
Phantom Quartz with Chlorite and Hematite inclusions
Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)
mineral
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
mineral
Amygdaloidal Basalt with Quartz/Zeolite Infill
Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)
igneous
Shale
Shale (Sedimentary rock composed of mud/clay minerals)
sedimentary
Blue Sapphire
Corundum (Al2O3)
mineral
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Sandstone
Arenite (Sedimentary Rock)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Limonite (Ochreous)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Yellow Quartz River Pebble
Silicon Dioxide (SiO2)
mineral
Basalt River Cobble
Basalt (Aphanitic Mafic Volcanic Rock)
igneous