Metamorphic Rock (Specifically A Rock Composed Of Minerals)

Pink Granite (Potassium-rich Granite)

Phaneritic Felsic Igneous Rock (primarily SiO2, Al2O3, K2O)

Granite

Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)

Wonderstone (Liesegang Sandstone)

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

Fuchsite Quartzite

Fuchsite-bearing Quartzite

Milky Quartz

Silicon Dioxide (SiO2)

Biotite Mica

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

Specularite (Specular Hematite)

Iron Oxide (Fe2O3)

Grey Quartzite Pebble

Quartzite (primarily SiO2)

Sandstone Cobble

Clastic Sedimentary (Sandstone)

Azurite

Azurite (Cu3(CO3)2(OH)2)

Druzy Quartz on Host Rock

Silicon Dioxide (SiO2) with various iron-oxide inclusions

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

Septarian Nodule (Yellow Jasper variety)

Septarian Nodule (comprising Calcite, Aragonite, and Limestone/Bentonite)

Quartzite

Quartzite (primarily SiO2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Chalcedony (Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Geode (Unopened)

Silica-rich Concretion (primarily SiO2)

Geode (Quartz)

Silicon Dioxide (SiO2)

Quartz (Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Rhodonite

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Epidosite (Epidote-rich rock)

Epidotalite (primarily Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH))

Raw Citrine (Yellow Quartz)

Citrine / Silicon Dioxide (SiO2)

Citrine Quartz

Silicon Dioxide (SiO2) - Ferric Iron impurities

Quartz

Quartz (SiO2, Silicon Dioxide)

Pink Granite

Phaneritic plutonic rock (dominated by Alkali Feldspar)

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Basalt

Extrusive mafic igneous rock

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartz Vein with Iron Staining

Silicon Dioxide (SiO2)

Unakite

Unakite (Altered Granite)

Seraphinite (Clinochlore)

Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8

Pink Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Red Sandstone

Sandstone (mainly SiO2 with Iron Oxide cement)

Sandstone (Ferruginous)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Diorite

Diorite (Intermediate intrusive igneous rock)

Dendritic Agate

Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)

Red Quartzite (Tumbled Pebble)

Quartzite (primarily SiO2 with hematite inclusions)

Agate Geode

Silicon Dioxide (SiO2)

Limonite (Yellow Ochre)

FeO(OH)·nH2O (Hydrous iron(III) oxide-hydroxide mixture)