Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)

River Pebble (Likely Chert or Fine-Grained Sandstone/Quartzite)

Siliciclastic clast (likely Chert or Quartzarenite/Quartzite pebble)

Druzy Quartz Geode (likely Smokey Quartz variety)

Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Grooved/Weathered)

Arenite (composed primarily of Quartz and Lithic fragments)

Schist with Quartz Vein

Mica Schist with Crystalline Quartz (SiO2)

Basalt

Mafic volcanic rock (various silicate minerals including Pyroxene and Plagioclase)

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Granitic Pegmatite

Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)

Epidote

Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Granite

Phaneritic Plutonic Felsic Rock (Granite)

Conglomerate

Conglomerate (clastic sedimentary rock)

Granitic Gneiss

Gneiss (Metamorphic Rock)

Arsenopyrite with Quartz

Arsenopyrite (FeAsS)

Blue Sapphire (Ceylon)

Corundum (Al2O3) with traces of Iron and Titanium

Quartz (Milky/Crystalline)

Silicon Dioxide (SiO2)

Slate with Quartz Vein

Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)

Biotite (Mica)

Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)

Ferruginous Sandstone

Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)

Quartz Vein in Host Rock

Quartz (SiO2) in Mafic or Sedimentary Matrix

Graphite

Graphite (C)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (specifically an Iron-Concretion)

Arenite with Iron Oxide (Limonite/Goethite) cementation

Smoky Quartz

SiO2 (Silicon Dioxide)

Quartz (River Pebble)

Quartz (SiO₂ - Silicon Dioxide)

Shale (with minor calcite veining)

Clastic sedimentary rock (primarily clay minerals and quartz)

Unakite

Epidotized Granite

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)

Ferruginous Chert (Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Felsic Igneous Rock (likely Rhyolite or weathered Granite)

Felsic Volcanic/Plutonic Rock

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Quartz Geode

Silicon Dioxide (SiO2)

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Sandstone or Quartzite

Arenite (if sedimentary) / Quartzite (if metamorphic)

Specular Hematite

Specularite (Fe2O3)

Hypersthene

Hypersthene (formula: (Mg,Fe)SiO3)

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (Goethite/Hematite shell with Sandstone core)

Blue Quartz with Dumortierite/Magnesio-riebeckite inclusions

Quartz (SiO2) containing Dumortierite (Al7(BO3)(SiO4)3O3)

Agate (Polished Nodule)

Agate (Silicon Dioxide, SiO2)

Gold in Quartz Matrix

Native Gold (Au) with Quartz (SiO2) and Slate/Shale

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Green Aventurine (Quartzite)

Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)

Schist

Mica Schist (primarily Muscovite and Quartz)