Metamorphic Rock (Composed Of Multiple Minerals)

Rhodonite

Manganese silicate: (Mn,Fe,Mg,Ca)SiO3

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Quartz Pebble

Silicon Dioxide (SiO2)

Pebble (likely a type of sandstone or quartzite pebble)

Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.

Basalt

Basalt

Gossan (Iron Hat) with Quartz and Chlorite

Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite

Granite

Granite (Felsic Plutonic Rock)

Quartz with mica and feldspar (Pegmatite fragment)

Granitic Pegmatite (composed mainly of SiO2 with KAlSi3O8)

Quartzite (River Stone)

Quartzite (composed primarily of Silicon Dioxide, SiO2)

Basalt

Extrusive mafic igneous rock

Granite

Granite (Phaneritic Igneous Rock)

Granite

Plutonic felsic igneous rock

Greenstone

Greenschist / Meta-basalt

Ruby in Kyanite

Corundum in Disthene (Al2SiO5 + Al2O3)

Botryoidal Chalcedony (Agate)

Cryptocrystalline Quartz (SiO2)

Sandstone (lithic/greywacke variety)

Arenite (composed primarily of SiO2 with various lithic fragments)

Fuchsite (Chrome Mica)

K(Al,Cr)2(AlSi3O10)(OH)2

Diamond

Diamond (Pure Carbon, C)

Pink Granite

Granite (Phaneritic Acid Igneous Rock)

Epidote

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

Moss Agate

Moss Agate (a variety of Chalcedony, SiO ₂)

Serpentinite

Serpentinite (complex silicate minerals including Mg3Si2O5(OH)4)

Nephrite Jade (or Serpentine)

Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals

Serpentinite

Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)

Granite

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8)

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Petrified Wood

Silicified Wood (SiO2)

Red Siltstone

Siltstone (composed mainly of SiO2 and Fe2O3)

Serpentinite

Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Milky Quartz with Chlorite Schist Inclusions

Quartz (SiO2) with Chlorite Group silicates (typically (Mg,Fe)3(Si,Al)4O10(OH)2)

Gneiss

Metamorphic Gneiss (High-grade regional metamorphism)

Granite

Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)

Granitoid (Granite/Gneiss)

Granitoid silicate rock, primarily quartz and feldspar

Sandstone

Arenite (composed primarily of SiO2)

Petrified Wood

Silicified Wood (SiO2)

Serpentinite

Serpentinite (composed mainly of Group: Serpentine; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Basalt with Quartz Veining

Veined Basalt (composed primarily of plagioclase feldspar, pyroxene, and olivine with quartz/calcite infill)

Ruby in Fuchsite

Corundum (Al2O3) in Fuchsite (K(Al,Cr)3Si3O10(OH)2)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Magnetite

Magnetite (Fe3O4)

Quartz Crystal Cluster

Silicon Dioxide (SiO2)