Quartzite with inclusions
Metamorphic Quartzite (SiO2 with accessory minerals)
metamorphic
Category
Mineraloid (Man Made Origin)
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Quartzite
Quartzite (consisting primarily of SiO2)
metamorphic
Basalt with Epidote
Mafic volcanic rock with Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
igneous
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Limestone
Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)
sedimentary
Vesicular Basalt
Basalt with vesicular texture
igneous
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
mineral
Oolitic Limestone (Egg Stone)
Oolite (Chemical sedimentary rock, primarily CaCO3)
sedimentary
Bivalve Fossil (Internal Mold)
Class Bivalvia (Phylum Mollusca)
sedimentary
Tektite (Indochinite)
Tektite (High-silica natural glass)
igneous
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Quartzite cobblestone
Quartzite (primarily SiO2)
metamorphic
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone (with Chert/Quartzite)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 variety)
sedimentary
Banded Metamorphic Rock (likely Quartzite or Serpentinite/Soapstone)
Metamorphic Rock (possibly a banded Quartzite or a foliated Serpentinite/Talc Schist based on appearance, general term for such a rock is 'Banded Metamorphic Rock' or 'Gneiss' if pronounced banding of different minerals)
Metamorphic
Iron Meteorite
Siderite (Iron-Nickel Meteorite)
mineral
Gossan with Copper Carbonate (Chrysocolla/Malachite)
Ferruginous Oxide (Gossan) with Cu2CO3(OH)2 (Malachite) or (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla)
Mineral/Sedimentary Interface
Selenite (Satin Spar)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Yellow Chert (River Stone)
Microcrystalline Quartz (SiO2)
sedimentary
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2 with FeOOH inclusions)
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2 with impurities)
mineral
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
sedimentary
Liesegang Banded Sandstone (Wonderstone)
Ferruginous Sandstone with Liesegang Rings
sedimentary
Carnelian
Carnelian Chalcedony (SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (principally SiO2)
metamorphic
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Tiger's Eye
Silicon Dioxide (SiO2) - Pseudomorph of Quartz after Crocidolite
mineral
Tiger's Eye (Golden and Blue)
Silicon Dioxide (SiO2) with fibrous inclusions of Crocidolite
mineral
Red Quartzite
Quartzite (principally SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of silica, SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Chalcedony Nodule (Agate/Chert)
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
mineral
Metaconglomerate
Metaconglomerate (Quartzite conglomerate)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Ferruginous Sandstone
Arenite with Hematite/Limonite cement
sedimentary