Sedimentary Rock (Possibly Composed Of Various Minerals)

Granite

Granite (Phaneritic Quartz-Feldspar rock)

Sandstone (Wonderstone)

Silicified Sandstone / Orthoquartzite with Liesegang rings

Quartz

Silicon Dioxide (SiO2)

Massive Quartz (Milky or Gray)

Silicon Dioxide (SiO2)

Botryoidal Agate

Silicon Dioxide (SiO2)

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles

Mixed gemstones (primarily Silicon Dioxide - SiO2)

Granite Pebble

Intrusive Igneous Rock

Sandstone

Arenite (composed primarily of Quartz: SiO2)

Calcite-rich limestone, possibly fossiliferous

Limestone composed mainly of calcite (CaCO₃), potentially containing a fragmentary fossil or calcite-filled structure

Fossilized Brachiopod

Phylum Brachiopoda (likely Order Spiriferida or Orthida)

Agate

Silicon dioxide (Chalcedony), SiO2

Shale

Fissile mudrock (composed of clay-sized particles and detrital grains)

Asphalt Pavement (with aggregate)

Asphalt concrete

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Granitoid (Granite/Gneiss mix)

Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)

Conglomerate

Conglomerate

Sandstone

Arenite (Sedimentary rock composed of sand-sized grains)

Sodalite-bearing rock, likely sodalite-rich syenite or sodalite in feldspathic matrix

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, with probable feldspar and accessory minerals

Tumbled dark pebble

Indeterminate; likely basalt or fine-grained dark metamorphic rock

Hematite

Iron(III) oxide (Fe2O3)

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Sandstone

Sedimentary Clastic Rock (Quartz Arenite)

Quartz-rich pegmatite (possibly quartz–feldspar rock)

Granite pegmatite; chiefly quartz (SiO₂) with feldspar and minor mica/iron staining

Coquina or Fossiliferous Sandstone

Fossiliferous Calcarenite (CaCO3 with SiO2 inclusions)

Quartzite

Quartzite (Metamorphic rock composed primarily of quartz)

Quartz and Mixed Sedimentary Rocks

Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies

Blue Apatite

Apatite (Ca5(PO4)3(F,Cl,OH))

Rhodonite beads (possibly dyed or treated, or lower quality Rhodonite)

Manganese inosilicate, (Mn,Fe,Mg,Ca)SiO3

Sandstone

Arenite

Clear Quartz (Carved Merkaba)

Silicon Dioxide (SiO2)

Sandstone

Clastic Sedimentary Rock (composed mostly of SiO2)

Sandstone

Quartz arenite / Lithic sandstone

Sandstone

Arenite (primarily SiO2)

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Bioclasts

Sandstone (with potential Arkose/Lithic characteristics)

Arenite (Sedimentary rock composed of sand-sized grains)

Likely galena-bearing ore

Galena (lead sulfide, PbS), possibly mixed with sulfide minerals

Likely weathered quartz-rich rock, possibly smoky quartz or chert

Quartz (SiO₂), though exact identification is uncertain from the photograph

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Quartz-rich rock fragment

Microcrystalline quartz (SiO₂), possibly chalcedony or quartz-bearing breccia

Likely quartz crystal fragment

Quartz (SiO₂), possibly a small tumbled or cleaved fragment

Likely iron-rich rock or metallic mineral fragment

Uncertain; possibly limonite/goethite-rich material or weathered iron meteorite fragment

Sandstone (likely Quartzose type)

Clastic sedimentary rock (primarily SiO2)