Metamorphic (Likely Gneiss Or Schist Based On Texture)

Sandstone (lithic wacke/arenite)

Clastic sedimentary rock (primarily SiO2)

Sandstone (Quartzite-rich)

Clastic sedimentary rock (SiO2 primary)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)

Granite (Pink/Potassium-rich)

Phaneritic Plutonic Felsic Igneous Rock (primarily SiO2 with KAlSi3O8)

Quartz Pebble (with probable Iron staining)

Silicon Dioxide (SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Asphalt (Bituminous Concrete)

Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)

Quartz Vein in Host Rock

Hydrothermal Quartz (SiO2) in Slates/Schists

Jade

There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.

Bornite

Bornite (Cu5FeS4)

Sandstone (Ferruginous)

Arenite (Fe2O3 rich)

Limestone with Algal/Lichen Colonization

Calcium Carbonate (CaCO3)

Crushed Limestone and Calcite

Calcium Carbonate (CaCO3)

Man-made Carved Stone (Scream Mask/Skull motif)

Carved Soapstone or Serpentine-rich rock

Limestone (specifically Crushed Limestone/Calcictic)

Calcium Carbonate (CaCO3)

Amazonite

Microcline (KAlSi3O8) with Trace Elements

Quartzite River Pebble

Quartzite (SiO2)

Quartzite (River Cobble)

SiO2 (Quartz-rich Metamorphic Rock)

Quartzite

Quartzite (SiO2)

Sandstone (Quartz-rich)

Clastic sedimentary rock (SiO2 primary)

Quartz / Limestone Gravel

SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)

Porcelain (Kaolin-based)

Alumina silicate ceramic (composed primarily of Kaolinite: Al2Si2O5(OH)4)

Sandstone

Arenite (primarily SiO2)

Specular Hematite with Quartz and Limonite

Hematite (Fe2O3) with Quartz (SiO2) and Limonite (FeO(OH)·nH2O)

Goldstone (Red)

Aventurine Glass (Cupriferous glass)

Artificial Rock Face (Faux Rock)

Glass Fiber Reinforced Concrete (GFRC)

Painted River Rock

Anthropogenic-modified Siliciclastic Sedimentary Rock

Obsidian

Obsidian (Volcanic Glass, SiO2 + oxide impurities)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Milky Quartz with inclusions

Silicon Dioxide (SiO2)

Jasper (likely Kambaba or Crocodile Jasper variety)

Silicon Dioxide (SiO2) with inclusions

Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate / Chalcedony

Milky Quartz

Silicon Dioxide (SiO2)

Chert (and Petrified Wood)

Silicon Dioxide (SiO2)

Sandstone (Calcareous Sandstone)

Calcareous Sandstone (primarily SiO2 with CaCO3 cement)

Porphyritic Basalt or Andesite

Porphyritic Basalt / Andesite

Quartz

Silicon dioxide (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.

Sandstone Pebble

Arenite (primarily SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)