Metamorphic Rock (Composed Of Multiple Minerals)

Granite

Phaneritic Igneous Rock (Granitic)

Limonite (Iron Ore)

Goethite and related iron hydroxides (FeO(OH)·nH2O)

Vesicular Basalt (Lava Rock)

Aphanitic Mafic Igneous Rock

Orange Calcite

Calcium Carbonate (CaCO3)

Zebra Marble

Metamorphosed Alabaster/Limestone (CaCO3)

Black Marble

Recrystallized Calcite (CaCO3)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz and Clear Quartz Geode

Silicon Dioxide (SiO2)

Chert / River Pebble

Silicon Dioxide (SiO2)

Moss Agate

Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxides

Ironstone Concretion (Boji Stone/Moqui Marble type)

Goethite/Hematite-encrusted Sandstone Concretion

Tree Agate

Dendritic Chalcedony (SiO2)

Tree Agate (also known as Dendritic Agate)

Silicon Dioxide with inclusions (SiO2 + Mn/Fe)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Seraphinite

Clinochlore (Mg,Fe)5Al(AlSi3O10)(OH)8 - specific variety for Seraphinite due to its fibrous inclusions and chatoyancy.

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Serpentine

Serpentine-group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartz with Iron Staining

Silicon Dioxide (SiO2) with Ferruginous Oxides

Diorite (Spotted or Dalmatian Stone pattern)

Diorite

Garnet Schist

Almandine-Garnet Mica Schist

Botryoidal Chalcedony with Calcite

Chalcedony (SiO2 with accessory minerals, likely CaCO3)

Amygdaloidal Basalt

Amygdaloidal Mafic Volcanic Rock (Basalt)

Beryl (likely Aquamarine) in matrix

Be3Al2(SiO3)6 (Beryllium Aluminum Silicate)

Blue Quartzite

Blue Quartzite (Primary mineral: Quartz, SiO2 with magnesio-riebeckite or crocidolite inclusions)

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO₂)

Ironstone (with possible Hematite/Limonite coating)

Ironstone (Fe-rich sedimentary rock)

Sandstone with Ironstone Concretion

Arenite with Hematite/Goethite nodules (Fe2O3 / FeO(OH))

Nephrite Jade

Tremolite-Actinolite solid solution, Ca2(Mg,Fe)5Si8O22(OH)2

Lazulite

Lazulite (Mg,Fe2+)Al2(PO4)2(OH)2

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Biotite Mica

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

Nacre (Mother of Pearl)

Nacre (Biogenic Aragonite/Calcite composite, CaCO3)

Granite

Granite (Felsic Plutonic Rock)

Yellow Aventurine

Quartzite with inclusions (SiO2)

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Jadeite

Jadeite (NaAlSi2O6)

Greenstone (Rough Jadeite or Nephrite)

Sodium aluminum silicate (Jadeite) / Calcium magnesium iron silicate (Nephrite)

Limonite (Iron Stone)

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

Yellow Ochre / Limonite

Limonite (FeO(OH)·nH2O)