Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
mineral
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Quartz
Silicon Dioxide (SiO2)
mineral
Fossil Coral
Scleractinia (Stony Coral) fossil
fossil
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Unknown White Specimen
Unidentifiable due to blurriness
mineral
Pegmatite
Igneous Pegmatite
igneous
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
gemstone
White Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8Al6Si6O24(Cl,OH)2
mineral
Fossil Shell
Invertebrate fossil (Mollusca)
fossil
Bivalve Seashell Fossil
Class Bivalvia
fossil
Fossil Shell
Brachiopod or Mollusk fossil
fossil
Cockle Shell Fossil
Cardium (Bivalvia)
fossil
Red Sandstone
Clastic Sedimentary Rock
sedimentary
Hemimorphite
Hemimorphite (Zn4Si2O7(OH)2·H2O)
mineral
Carnelian
Silicon Dioxide (Chalcedony variety)
gemstone
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Fossilized Bivalve Shell
Bivalvia (Phylum Mollusca)
fossil
Limonite Concretion
Goethite/Limonite concretion (FeO(OH)·nH2O)
sedimentary
Seashell Fossil
Mollusca (Bivalvia)
fossil
Fossil Shell
Phylum Mollusca (Bivalvia or Brachiopoda)
fossil
Amethyst Beads
Silicon Dioxide (SiO2)
gemstone
Pumice
Pumice (Volcanic Glass)
igneous
Vanadinite
Pb5(VO4)3Cl
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Celestite Geode
Strontium Sulfate (SrSO4)
mineral
Granite Pebble
Intrusive Igneous Rock
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Gabbro
Gabbro
igneous
Pumice
Pumice
igneous
Pumice
Pumice (Vesicular Felsic Igneous Rock)
igneous
Pumice
Pumice (Vesicular Felsic Igneous Rock)
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Red Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Orthogneiss / Paragneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Basalt
Extrusive Igneous Rock
igneous
Quartzite
Quartzite (Metamorphosed Quartz Sandstone)
metamorphic