Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)

Mixed Mineral and Rock Collection

Mixed geological specimens (Quartz, Amethyst, Rose Quartz, Jasper, Epidote, Chert)

Tumbled jasper or brecciated jasper

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and dark mineral inclusions

Quartz pebble

Silicon dioxide (SiO2)

Conglomerate

Clastic sedimentary rock (Puddingstone)

Conglomerate

Clastic sedimentary rock (Psephite)

Wishing Stone / Banded Quartz Vein Pebble

Sedimentary pebble with hydrothermal quartz veins (SiO2)

Druzy Quartz (part of a Geode)

Silicon Dioxide (SiO2)

Iron-stained quartz-rich rock, possibly jasper or chert

Microcrystalline quartz (SiO₂) with iron oxides/hydroxides

Red Jasper (possibly with Hematite/Magnetite inclusions)

Silicon Dioxide (SiO2) with iron oxide inclusions

Conglomerate

Clastic sedimentary conglomerate

Basalt with Quartz Vein

Aphanitic Mafic Igneous Rock with Silicon Dioxide (SiO2) intrusion

Rounded gray limestone pebble with a calcite vein

Calcitic limestone, composed predominantly of calcite (CaCO₃), locally cut by a white calcite vein

River Pebble (Granite / Sandstone Cobble)

Stream-rounded Rock Pebble

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Gravel and River Pebbles

Unconsolidated rock fragments / Detrital sediment

Wishing Stone (Quartz-Veined Pebble)

Hydrothermal Quartz in Metasedimentary Matrix (SiO2/Matrix)

River Pebble (Gravel Pebble)

Stream-rounded Rock / Siliciclastic Pebble

Conglomerate

Conglomeratic Sandstone

Veined Limestone

Sedimentary Calcite-Veined Rock (CaCO3)

Gravel and Pebbles

Unconsolidated rock fragments (clastic sediment)

Conglomerate

Conglomeratic Sandstone

Brecciated Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Conglomerate

Sedimentary Conglomerate with Basaltic Clast

Unknown Rock Specimen

Puddingstone (Conglomerate)

Conglomerate (clastic sedimentary rock)

Puddingstone (Gowganda Conglomerate)

Polymictic Conglomerate (SiO2 matrix with jasper and quartz inclusions)

Granite with Quartz Vein

Granite

Conglomerate

Clastic Sedimentary Conglomerate (SiO2, CaCO3 dominant)

Puddingstone

Conglomerate (Indurated)

Honey calcite (likely rough cleavage fragment)

Calcite, calcium carbonate (CaCO₃)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Vein in Amphibolite / Gneiss

Quartz (SiO2) in Mafic Metamorphic Host Rock

Chert Breccia

Brecciated Chert (Microcrystalline Silica, SiO2)

Quartz

Silicon Dioxide (SiO₂)

Basalt with Quartz Vein

Aphanitic Mafic Igneous Rock with Quartz (Silica) Intrusion

Asphalt Concrete

Bituminous conglomerate

Sandstone with Quartz Veins

Arenite (primarily SiO2 with Fe2O3 staining)

Conglomerate (River Rock)

Clastic sedimentary rock (primarily SiO2)

Tumbled brown jasper pebble

Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

Gravel / Crushed Stone

Aggregate (mixed mineral rock fragments)

Quartz

Silicon Dioxide (SiO₂)

Red Breccia Jasper

Silicon Dioxide (SiO2) with hematite and various mineral inclusions