Metamorphic Rock (Composed Of Multiple Minerals)

Quartzite Pebbler

Quartzite (SiO2)

River Cobble (Quartzite)

Meta-orthoquartzite

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz River Pebbles

Silicon Dioxide (SiO2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

River Rock (Basalt/Greywacke pebbles)

Fluvial gravel primarily composed of Mafic Volcanic Rock (Basalt) or Lithic Sandstone (Greywacke)

Red Quartzite Slipper Stone

Quartzite (SiO2)

Septarian Nodule Segment (Commonly known as Dragon Stone or Lightning Stone)

Septarian Nodule (CaCO3 / Hydrated Calcium Carbonate)

Dendrite (Manganese Oxide Dendrites)

Psilomelane or Pyrolusite on Matrix (typically MnO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Shale

Shale (composition varies: primarily clay minerals and quartz)

Rough Quartz (with potential Host Rock)

Silicon Dioxide (SiO2)

Mica Schist

Mica Schist

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Ferruginous Sandstone (Red Sandstone)

Arenite with Hematite/Limonite cement

Granite

Granite (Phaneritic Igneous Rock)

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Wonderstone (Liesegang Sandstone)

Silicified Sandstone with Liesegang Rings (SiO2 + FeO(OH))

Quartz Pebble (with Mica or Iron staining)

Silicon Dioxide (SiO2)

Unakite

Unakite (Altered Granite consisting of Orthoclase KAlSi3O8, Epidote Ca2(Al,Fe)3(SiO4)3(OH), and Quartz SiO2)

Iron-stained Quartzite

Metamorphic Quartz (SiO2) with limonite/hematite staining

Yellow Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

River Pebble (Quartzite/Chert)

Quartzite with inclusions (SiO2)

Agate and Amethyst (Quartz variants)

Silicon Dioxide (SiO2) - Microcrystalline Quartz and Crystalline Quartz

Mica Schist (with Golden/Biotite inclusions)

K(Mg,Fe)3AlSi3O10(F,OH)2 (Biotite), KAl2(AlSi3O10)(F,OH)2 (Muscovite)

Quartzite Pebble (River Rock)

Quartzite (mainly SiO2)

Quartzite River Rock

Quartzite (SiO2)

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Unakite

Unakite (Epidotized Granite)

Serpentine (Nephrite-like Serpentine)

Serpentinite (Hydrous magnesium iron phyllosilicate)

Quartzite

Quartzite (SiO2)

Unakite

Epidotized Granite

Serpentine

Antigorite / Lizardite / Chrysotile mix; (Mg, Fe)3Si2O5(OH)4

River Rock (Quartzite)

Quartzite (SiO2)

Unakite

Epidotized Granite (SiO2, KAlSi3O8, Ca2(Al, Fe)3(SiO4)3(OH))

Basalt (Vesicular)

Vesicular Basalt

Limonite-stained Granite

Felsic Plutonic Rock with Hydrated Iron Oxides

Grey Granite

Phaneritic Felsic Intrusive Igneous Rock

Conglomerate

Conglomerate (clastic sedimentary rock)