Metamorphic Or Igneous (Context Dependent)

Quartzite with Hematite staining

Quartzite (SiO2) with iron oxide inclusions (Fe2O3)

Quartzite

Quartzite (SiO2)

Jade

Jade can refer to two distinct minerals: Nephrite (a variety of the mineral actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (Na(Al,Fe3+)Si2O6). Based on the image, showing a relatively uniform green color and possibly slight translucence in bead form, it is very likely one of these, but determining which one from a photo is difficult without specific testing.

Quartzite Pebble

Quartzite (SiO2)

Granite and Igneous Mix

Phaneritic Felsic to Mafic Intrusive Rocks

Muscovite Schist

Muscovite Mica Schist (KAl2(AlSi3O10)(OH)2)

Quartzite

Quartzite (SiO2)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Serpentinite

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

Anthracite Coal

High-rank coal (primarily Carbon, C)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Ferruginous Quartz on Ironstone

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Quartzite

Quartzite (SiO2)

Jadeite and Nephrite (Jade)

Sodium Aluminum Silicate (Jadeite) / Calcium Magnesium Iron Silicate (Nephrite)

Quartzite (River Pebble)

Metamorphic rock consisting primarily of Quartz (SiO2)

Granite Gneiss

Gneiss (High-grade regional metamorphic rock)

Quartzite with Iron Inclusions

Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)

Granite Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within a metamorphic matrix

Lapis Lazuli

A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).

Nephrite Jade

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

Garnet Schist

Almandine Garnet-Mica Schist (X₃Y₂(SiO₄)₃)

Marble

Metamorphosed Limestone (main mineral: Calcite, CaCO3)

Quartzite

Quartzite (SiO2)

White Marble

Recrystallized Calcite (CaCO3)

Quartzite

Quartzite (primarily SiO2)

Lapis Lazuli

Lapis Lazuli (Aggregate primarily of Lazurite: (Na,Ca)8(AlSiO4)6(S,SO4,Cl,1-2) with Calcite and Pyrite)

Black Marble

Recrystallized Calcite (CaCO3)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Chalcopyrite

Chalcopyrite (CuFeS2)

Galena

Lead(II) sulfide (PbS)

Granite

Granite (Mainly Quartz, Feldspar, and Mica/Amphibole)

Porphyritic Rhyolite (Birdseye Rhyolite)

Rhyolite (Porphyritic texture)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

White Topaz

Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2

Quartzite Pebble

Metamorphic rock predominantly composed of Quartz (SiO2)

Schist

Mica Schist (Medium-grade metamorphic rock)