Quartz Vein in Siltstone
Siltstone with Quartz (SiO2) inclusion
sedimentary
Category
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Basalt with Quartz Veining
Amygdaloidal Basalt (predominately SiO2 and (Na,Ca)(Si,Al)4O8)
igneous
Basalt with Vesicular Texture
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Gneiss
Gneiss (SiO2-rich metamorphic rock)
metamorphic
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive igneous felsic rock
igneous
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Granite
Granite
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (Agate/Carnelian-like)
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
mineral
Sandstone (Graywacke type)
Clastic Sedimentary Rock (Lithic Sandstone)
sedimentary
Bronzite
Enstatite (var. Bronzite), (Mg,Fe)SiO3
mineral
Basalt with Quartz/Calcite Veins
Basalt (Aphanitic Mafic Volcanic Rock) with Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) inclusions
igneous
Quartz Veined Basalt
Mafic Igneous Rock with Quartz (SiO2) intrusion
igneous
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Quartz (likely Rose Quartz or Milky Quartz based on color)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Fossilized Shark Tooth
Elasmobranchii gen. indet.
fossil
Quartz-veined Basalt or Diabase Pebble
Igneous rock with hydrothermal quartz vein
igneous
Chert Nodule (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Phantom Quartz (Chlorite Inclusion)
Silicon Dioxide (SiO2) with Chlorite (Mg,Fe,Al)6(Si,Al)4O10(OH)8
mineral
Sandstone (with potentially high Feldspar/Arkose content)
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Blue Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Shiva Eye Shell (Operculum)
Calcium Carbonate (Aragonite), CaCO3
mineral
White Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Diorite (Salt and Pepper Rock)
Diorite
igneous
Fossilized Sand Tiger Shark Tooth
Carcharias sp. (likely Carcharias taurus or Striatolamia)
fossil
Granite
Granite
igneous
Vesicular Basalt with Zeolite
Mafic volcanic rock with Hydrated Aluminosilicate minerals (Zeolite group)
igneous
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3/FeO(OH) cementing agents)
sedimentary
Quartz Geode
Quartz (SiO2) in a Sedimentary Vug
sedimentary
Jasper (specifically Red Jasper/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary