Sedimentary Or Metamorphic

Quartzite

Quartzite (SiO2 silicon dioxide)

Quartzite

Quartzite (mostly SiO2)

Unakite

Epidotized Granite

Green Quartzite (Aventurine-like)

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Quartzite Pebble (Beach Stone)

Quartzite (primarily SiO2)

Quartzite (Ferruginous)

Recrystallized Quartz (SiO2) with Iron Oxide inclusions

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Greenschist

Greenschist (Chlorite Schist)

Quartzite (River Cobble)

Quartzite (Metamorphosed Quartz Sandstone, SiO2)

Quartzite

Quartzite (SiO2)

Quartzite River Rock

Quartzite (SiO2)

River Cobble (Quartzite)

Quartzite (SiO2)

Blue Quartzite (Aventurine)

Silicon Dioxide (SiO2) with mineral inclusions

Quartzite (or Milky Quartz pebble)

Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Mica Schist

Mica Schist (Complex Silicate Rock)

Schist (Diamond Drill Core)

Mica Schist

Quartzite

Quartzite (primarily SiO2)

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Quartz vein in Schist

Crystalline Silicon Dioxide (SiO2) in Metamorphic Host

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Nephrite Jade

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

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(OH)2

Yellow Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Talc (Soapstone variety)

Talc (Hydrated magnesium silicate) - Mg3Si4O10(OH)2

Rhodonite

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

Fuchsite in Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 in SiO2

Greenschist (Chlorite Schist)

Greenschist (containing chlorite, actinolite, and epidote)

White Marble Pebble

Recrystallized Calcite (CaCO3)

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.

Citrine (Yellow Quartz)

Silicon Dioxide (SiO2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Yellow Quartzite

Quartzite (primarily Silicon Dioxide - SiO2)

Nuummite

Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)

Quartzite

Quartzite (primarily SiO2)

Schist

Mica Schist

Red Quartzite River Stone

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Soapstone

Steatite (composed primarily of Talc, Mg3Si4O10(OH)2)