Quartzite with Hematite
Metamorphic Quartzite (SiO2 with Fe2O3 inclusions)
metamorphic
Category
Metamorphic Or Sedimentary (With Staining)
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Quartzite with Iron Inclusions
Metamorphosed Quartz-rich Rock (SiO2 with Fe2O3)
metamorphic
Limonite-stained Quartz / Quartzite
Silicon Dioxide (SiO2) with iron hydroxides (FeO(OH)·nH2O)
sedimentary or metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (chiefly SiO2)
metamorphic
Gold Ore in Quartz/Schist
Auriferous Quartz and Sulfide-bearing Schist
Metamorphic/Igneous (Hydrothermal)
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Quartzite with Hematite staining
Quartzite (SiO2)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Tumbled brown mineral pebble, possibly jasper or weathered quartzite
Indeterminate from the blurred image; likely microcrystalline quartz (SiO₂) if jasper, or quartzite dominated by quartz
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Limonitic Quartzite
Metamorphosed sandstone with Limonite (FeO(OH)·nH2O) staining
metamorphic
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)
sedimentary
Quartzite with Hematite staining
Metamorphic Quartzite (SiO2) with Ferruginous Oxides
metamorphic
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Weathered, quartz-rich metamorphic rock (likely schist or gneiss)
Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining
metamorphic
Quartzite (likely Iron-stained)
SiO2 (Metamorphosed Sandstone)
metamorphic
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Yellow Quartzite (River Pebble)
Crystalline Quartz (SiO2)
metamorphic
Quartz (Golden Quartz / Citrine / Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Weathered quartz-bearing rock, possibly gneiss or quartzite
Indeterminate; likely quartz-rich metamorphic rock containing quartz and feldspar
metamorphic
Quartzite with Iron Inclusions
Metamorphosed Quartz-Rich Sandstone (SiO2 with Fe2O3)
metamorphic
Limonite-stained Quartzite
Metamorphosed Quartz-rich Arenite (SiO2 with FeO(OH)·nH2O)
metamorphic
Quartzite (Iron-stained)
Quartzite (SiO2 with Fe-oxides)
metamorphic
Quartzite (Iron-stained)
Metamorphic Quartzite (primarily SiO2) with Limonite/Hematite staining
metamorphic
Conglomerate
Conglomerate Sedimentary Rock
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite Chert Pebble
Microcrystalline Silicon Dioxide (SiO2)
sedimentary/metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartzite with Iron Staining
Silicon Dioxide (SiO2) with Fe2O3 impurities
metamorphic
Ferruginous Quartz (Iron-stained Quartzite)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
metamorphic
Quartzite Cobble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Quartz Vein in Matrix
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (Siliclastic sedimentary rock)
sedimentary
Ferruginous Sandstone (with Pyrite/Gold associations)
Ferruginous Arenite (SiO2 + Fe2O3)
sedimentary
Milky quartz (massive quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Ferruginous Quartzite (also known as Ironstone or Gossan)
Ferruginous Quartzite with Goethite/Hematite staining
metamorphic