Blue Calcite rock specimen

Blue Calcite

Calcium Carbonate (CaCO3)

mineral

Jasper rock specimen

Jasper

Quartz (SiO2) with impurities

sedimentary

Pink Granite rock specimen

Pink Granite

Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)

igneous

Granite Gneiss rock specimen

Granite Gneiss

Gneiss (high-grade metamorphic rock)

metamorphic

Pink Granite rock specimen

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

igneous

Granite rock specimen

Granite

Granitoid

igneous

Red Jasper rock specimen

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary

Eclogite rock specimen

Eclogite

Eclogite (Omphacite-Garnet rock)

metamorphic

Chert (Jasper variety) rock specimen

Chert (Jasper variety)

Silicon Dioxide (SiO2)

sedimentary

Brown Quartzite Pebble rock specimen

Brown Quartzite Pebble

Metadiagenetic Quartzite (primarily SiO2)

metamorphic

Milky Quartz with Iron Staining rock specimen

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

mineral

Mica Schist with Quartz rock specimen

Mica Schist with Quartz

Mica-Quartz Schist (Muscovite subclass)

metamorphic

Milky Quartz rock specimen

Milky Quartz

Silicon Dioxide (SiO2)

mineral

Basalt rock specimen

Basalt

Basalt

igneous

Mica in Quartz Host rock specimen

Mica in Quartz Host

Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)

igneous

Quartz / Quartzite rock specimen

Quartz / Quartzite

Quartz (Silicon Dioxide, SiO2)

metamorphic

Sandstone rock specimen

Sandstone

Sandstone (principally SiO2)

sedimentary

Quartzite rock specimen

Quartzite

Quartzite (SiO2)

metamorphic

Greenstone rock specimen

Greenstone

Greenschist / Meta-basalt

metamorphic

Red Jasper rock specimen

Red Jasper

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

sedimentary

Sandstone (Quartzose) rock specimen

Sandstone (Quartzose)

Arenite (primarily SiO2)

sedimentary

Almandine Garnet rock specimen

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

mineral

Ferruginous Chert rock specimen

Ferruginous Chert

Silicon dioxide with iron oxide impurities (SiO2 + Fe2O3)

sedimentary

Quartz Pebble rock specimen

Quartz Pebble

Silicon Dioxide (SiO2)

mineral

Quartzite Pebble rock specimen

Quartzite Pebble

Quartzite (primarily SiO2)

metamorphic

Vesicular Basalt (Pumice-like) rock specimen

Vesicular Basalt (Pumice-like)

Vesicular Basalt

igneous

Chalcedony (Common Agate pebble) rock specimen

Chalcedony (Common Agate pebble)

Silicon Dioxide (SiO2)

mineral

Milky Quartz rock specimen

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

mineral

Basalt with Scoria rock specimen

Basalt with Scoria

Mafic Volcanic Rock (Basalt/Scoria)

igneous

Quartz (Quarzite or Massive Quartz vein) rock specimen

Quartz (Quarzite or Massive Quartz vein)

Silicon Dioxide (SiO2)

metamorphic

Greywacke rock specimen

Greywacke

Lithic wacke (variety of Sandstone)

sedimentary

Milky Quartz rock specimen

Milky Quartz

Silicon Dioxide (SiO2)

mineral

Eclogite rock specimen

Eclogite

Eclogite

metamorphic

Granodiorite rock specimen

Granodiorite

Granodiorite (containing Plagioclase, Quartz, and Biotite)

igneous

Sandstone with Iron Oxide rock specimen

Sandstone with Iron Oxide

Arenite (SiO2 with Fe2O3 staining)

sedimentary

Diorite rock specimen

Diorite

Phaneritic Intermediate Igneous Rock

igneous

Vesicular Basalt with Amygdules rock specimen

Vesicular Basalt with Amygdules

Amygdaloidal Basalt

igneous

Rhyolite rock specimen

Rhyolite

Rhyolite

igneous

Tektite (Indochinite) rock specimen

Tektite (Indochinite)

Tektite (High-silica natural glass)

igneous

Sandstone (with banding) rock specimen

Sandstone (with banding)

Arenite (primarily SiO2)

sedimentary

Basalt (River Pebble) rock specimen

Basalt (River Pebble)

Basalt (Aphanitic Mafic Igneous Rock)

igneous

Chert (specifically Tan/Gray Chert) rock specimen

Chert (specifically Tan/Gray Chert)

Microcrystalline quartz (SiO2)

sedimentary