Sedimentary Rock (Possibly Composed Of Various Minerals)

Yellow Quartz

Silicon Dioxide (SiO2)

Granite

Intrusive Phaneritic Felsic Igneous Rock

Diorite (Spotted or Dalmatian Stone pattern)

Diorite

Dalmatian Stone (Dalmatian Jasper)

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

Gneiss (Granitic Gneiss)

Gneiss

Sandstone

Sedimentary Rock (Quartz arenite/Arkose)

Likely granite or granitic gneiss

Quartz–feldspar–mica aggregate; possibly foliated granitic gneiss

Quartz

Quartz (SiO2 - Silicon Dioxide)

Sandstone Flagstone

Arenite (SiO2 with various cementing agents)

Lapis Lazuli

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Red Sandstone

Arenite (Iron-rich Sandstone)

Collection of Minerals and Ores

Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)

Inukshuk Rock Sculpture (composed of Granite, Slate, and Amethyst)

Silicon Dioxide (Amethyst portion, SiO2) with mixed silicate rock assemblage

Quartz Boulder

Silicon Dioxide (SiO2)

Weathered chert or silicified limestone nodule

Microcrystalline quartz (SiO₂), possibly replacing limestone; exact identification requires testing

Quartz

Silicon Dioxide (SiO2)

Quartz (Microcrystalline/Agate)

Silicon Dioxide (SiO2)

Granite

Granite (Felsic Plutonic Rock)

Quartz (various varieties)

SiO₂ (Silicon Dioxide)

Calcite

Calcium Carbonate (CaCO3)

Quartz

Silicon Dioxide (SiO2)

River Cobble (Sandstone)

Arenite / Quartz Sandstone

Galena

Lead(II) sulfide (PbS)

Tumbled jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz (SiO₂), with iron-oxide inclusions

Sandstone

Arenite (composed primarily of SiO2, or Silicon Dioxide)

Weathered granite or granitic gneiss

Granite: quartz, feldspar, and mica; possibly weakly foliated gneiss

Quartz (Yellow/Citrine variety or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Septarian Nodule

Septarian Concretion (Calcite, Aragonite, Limestone)

Sandstone (River Cobble)

Sandstone (composed predominantly of SiO2 - Quartz)

Sandstone (Stream-rounded Cobble)

Arenite (composed primarily of SiO2, Silica)

Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Chert (specifically Gray Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Siltstone

Siltstone (primarily composed of quartz and clay minerals)

Fluorite

Calcium Fluoride (CaF2)

Chert (Arrowhead)

Chert (primarily Microcrystalline Silica, SiO2)

Granite / Diorite (Granitoid)

Granitoid rock (composed mainly of Quartz, Feldspar, and Amphibole/Biotite)

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded chert or silicified limestone nodule

Microcrystalline quartz (SiO₂), possibly replacing carbonate fossils

Pyrite (Iron Pyrites)

Iron Sulfide (FeS2)

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Banded Agate

Silicon Dioxide (SiO2) - Chalcedony