Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
sedimentary
Category
Industrial Byproduct
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Granite
Granite (Felsic Plutonic Rock)
igneous
Quartzite
Metamorphosed Quartz Sandstone
metamorphic
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
mineral
Greenschist / Chloritaform Schist
Chlorite Schist (Group of Silicate Minerals)
metamorphic
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Schist (Chlorite or Mica-rich)
Chlorite Schist
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Limestone (Cliff Formation)
Limestone (predominantly CaCO3 as calcite)
Sedimentary
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Ruby (Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Geodal Limestone / Calcite Druze
Calcium Carbonate (CaCO3)
sedimentary
Blue Sapphire
Corundum (Al2O3)
mineral
Green Quartz (Prasiolite)
Crystalline Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Aluminum Oxide with Chromium traces), Al2O3:Cr
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartz (Double-Terminated)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Sapphire
Corundum (Al2O3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Vesicular Basalt (Lava Rock)
Basalt (Vesicular Variety)
igneous
Diamond
Native Carbon (C)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite (River Pebble)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartz with Mica (Gneissic or Pegmatitic origin)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)
metamorphic
Fulonite (Fulgurite-like)
Fulgurite (SiO2 fused silica/lechatelierite)
Metamorphic (Pseudo-igneous)
Agate (Thunderegg segment)
Silicon dioxide (SiO2) - Microcrystalline Quartz/Chalcedony
mineral
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
mineral
Milky Quartz with Tourmaline and Iron Oxides
Silicon Dioxide (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Garnet Schist
Almandine Garnet-Mica Schist (X₃Y₂(SiO₄)₃)
metamorphic
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
sedimentary
Ruby
Corundum (Al2O3:Cr)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert / Flint Nodule
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Sapphire (Blue)
Corundum (Al2O3)
mineral
Epidosite
Epidosite (predominantly Epidote {Ca2Al2Fe3+Si3O12(OH)} and Quartz {SiO2})
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineralological variety