Sedimentary Rock (Metamorphosed)

Rounded river cobble, likely quartz-rich sandstone or quartzite

Indeterminate quartz-rich clastic rock; probable sandstone (SiO₂-rich)

Glaucophane Schist (Blueschist)

Glaucophane Schist

Quartzite Pebble

Quartzite (SiO2 based)

Quartzite

Metamorphosed Quartz Sandstone

Quartzite with inclusions

Metamorphosed quartz sandstone

Quartzite with Quartz Vein

Metamorphosed sandstone (SiO2)

Quartzite (Ferruginous)

SiO2 (Metamorphosed Sandstone)

Quartzite

Metamorphosed Sandstone (SiO2)

Limestone

Calcium Carbonate (CaCO3)

Weathered quartz-rich rock, likely milky quartz or quartzite

Quartz (SiO₂), possibly quartzite with iron-oxide staining

Quartzite

Metamorphosed Quartz Sandstone

Marble

Metamorphosed Limestone (CaCO3)

Quartzite

Metamorphosed Quartz Sandstone

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartz-veined metamorphic rock, likely greenschist or altered metavolcanic

Chlorite–actinolite–epidote-bearing metavolcanic rock with quartz veins; exact identification requires testing

Marble

Metamorphosed Limestone (CaCO3)

Quartzite

Metamorphosed Quartz Sandstone

Dyed Quartzite

Metamorphosed Quartz (SiO2) with synthetic pigment

Quartzite River Rock

Metamorphosed Sandstone (SiO2)

Marble

Metamorphosed Limestone (CaCO3)

Light-colored granite or granitic gneiss

Granite; typically quartz + feldspar + mica (variable composition)

Rounded granitic gneiss or granitoid boulder

Biotite-bearing orthogneiss; chiefly quartz, feldspar, and biotite

Quartzite

Metamorphosed Sandstone (SiO2)

Yellow Quartzite

Metamorphosed Quartz (SiO2)

Quartzite Cobble

Metamorphosed Quartz Sandstone (SiO2)

Honey Calcite Sphere

Calcium Carbonate (CaCO3)

Quartz with Mica Schist

Quartz-Mica Schist / Pegmatitic Quartz

Picasso Jasper (also known as Picasso Marble)

Metamorphosed Limestone (Calcium Carbonate with impurities)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Limestone

Calcium Carbonate (CaCO3)

Eclogite

Eclogite (Omphacite-Garnet rock)

Greenstone (or Greywacke/Metasediment Pebble)

Metamorphosed Mafic Rock / Chlorite Schist

Slate with Fossiliferous Impressions

Metamorphosed Argillaceous Rock (Fossiliferous Slate)

Greenstone (Prase / Nephrite / Serpentine mix)

Metamorphosed ultramafic rock / greenstone facies

Greenstone

Greenschist (metamorphosed mafic igneous rock)

Quartzite (Iron-stained)

Metamorphosed Quartz-rich Rock (SiO2)

River Stone (likely Quartzite or Sandstone)

Metamorphosed Quartz-rich Rock (SiO2)

Greenstone / Metabasalt

Metamorphosed Mafic Rock (Greenschist facies)

Quartzite River Rock (with iron staining)

Metamorphosed Sandstone (SiO2)

Quartzite Cobble

Metamorphosed Quartz Sandstone

Eclogite

Eclogite (Omphacite-Garnet rock)

Serpentinite

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