Igneous, Sedimentary, And Metamorphic Mix

Banded Agate (Pink Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

White Quartz Pebbles

Quartz (Silicon Dioxide, SiO2)

Fluorite (Blue)

Calcium Fluoride (CaF2)

Carnelian Agate

Carnelian (SiO2 with iron oxide impurities)

Amethyst with Marcasite accents

Amethyst (Silicon Dioxide SiO2) and Marcasite (Iron Sulfide FeS2)

Granitic Sand

Detrital sediment (predominantly Quartz, Feldspar, and Mica)

Green Moss Agate

Silicon Dioxide with inclusions (SiO2 + Mn/Fe)

Red Jasper

Jasper (variety of Chert/Chalcedony, formula SiO2)

Fluorite

Fluorite (CaF₂)

Raw Emerald

Beryl (Be3Al2(SiO3)6) with Cr/V impurities

Quartzite and Sandstone Pebbles

Silicon dioxide (SiO2)

Rhodonite

Manganese silicate (MnSiO3)

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Rough Agate/Chert Nodules

Cryptocrystalline Quartz (SiO2)

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Hematite

Iron(III) oxide (Fe2O3)

Pegmatite (likely Granitic Pegmatite)

Pegmatite (a coarse-grained igneous rock, often with granitic composition)

Pyrite in Matrix (Commonly called Fool's Gold)

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Grey Chalcedony (Tumbled)

Chalcedony (SiO2)

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Hematite

Ferric oxide (Fe2O3)

Chalcedony (Agate/Carnelian precursor)

Chalcedony (Silicon Dioxide, SiO2)

Carnelian

Carnelian (Silica, SiO2)

Quartz (Milky/Iron-stained)

Silicon Dioxide (SiO2)

Botryoidal Agate

Chalcedony (Silicon Dioxide, SiO2)

Serpentine Schist with Quartz Vein

Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).

Dalmatian Jasper (or Dalmatian Stone)

Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)

Quartz with Mica Schist (Pegmatite Specimen)

SiO2 (Silicon Dioxide) and Phyllosilicates (Biotite/Muscovite)

Blue Lace Agate

Silicon Dioxide (SiO₂)

Slate with Red Sandstone Landscaping Rock

Foliated Pelitic Metamorphic Rock (Slate) and Ferruginous Sandstone

Porphyritic Basalt (Chinese Flower Stone / Chrysanthemum Stone basalt variety)

Porphyritic Basalt containing Plagioclase Feldspar phenocrysts

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Red Quartz (Carnelian/Red Jasper Agate)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Basalt River Stone

Basalt (Aphanitic Mafic Igneous Rock)

Jasper

Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)

Pink Garnet in Matrix

Grossular or Almandine Garnet (X3Y2(SiO4)3)

White Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (variety of colors)

SiO2 (Silicon Dioxide)

Diabase (also known as Dolerite)

Diabase / Dolerite

Blue Quartz (Blue Chalcedony/Dumortierite Quartz)

Silicon Dioxide (SiO2) with inclusions (typically Dumortierite Al7(BO3)(SiO4)3O3)

Chalcedony (Carnelian Agate pebble)

Silicon Dioxide (SiO2)