Metamorphic Rock (Specifically A Rock Composed Of Minerals)

Quartz (likely Clear Quartz or Rock Crystal)

Quartz (SiO2)

Pink Granite

Granite (Phaneritic felsic intrusive igneous rock)

Schist

Mica Schist (formula variable based on mineral content, typically containing [K,Al,Fe,Mg,Si,O,H])

Chert (specifically Jasper)

Silicon dioxide (SiO2) with iron oxide inclusions

Not a rock, mineral, or geological specimen

Jasper (specifically Bloodstone or Heliotrope variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Banded Gneiss

Gneiss (pronounced "nice")

Sandstone (Greywacke/Siltstone variant)

Clastic Sedimentary Rock (composed primarily of Quartz SiO2 and Feldspar)

Granite

Granite (phaneritic felsic intrusive rock)

Hematite

Iron(III) oxide (Fe2O3)

Pink Granite

Phaneritic Felsic Igneous Rock (composed of orthoclase, quartz, and plagioclase)

Granite

Granite (a felsic intrusive igneous rock composed primarily of quartz, feldspar, and mica)

Granite

Phaneritic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)

Fuchsite

Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)

Blue Calcite

Calcite (CaCO3)

Granite

Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Puddingstone (specifically Michigan/Gowganda Puddingstone)

Conglomerate (Jasper Conglomerate)

Zebra Rock / Zebra Marble

Banded Limestone-Marble Transition

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide / Chalcedony)

Yellow Quartzite (River Pebble)

Quartzite (primarily Silicon Dioxide, SiO2)

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)

Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates

Mica Schist

Mica Schist (Composition typically includes Muscovite KAl2(AlSi3O10)(OH)2 and Quartz SiO2)

Basalt

Basalt (Mafic volcanic rock)

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Strawberry Quartz

Quartz with Hematite inclusions (SiO2 + Fe2O3)

Sandstone Pebble with Iron Staining

Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)

Limestone (specifically Chalky Limestone)

Calcium Carbonate (CaCO3 / Calcite)

Mica Schist

Mica Schist (Quartz-Biotite-Muscovite Schist)

Pink Granite

Granite (Phaneritic igneous rock rich in Alkali Feldspar and Quartz)

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Quartz (specifically Milky or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Granite

Phaneritic plutonic rock composed of Quartz, Feldspar, and Mica

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)

Granodiorite (Gneissic texture)

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Red Jasper

Jasper (Silica/Silicon Dioxide, SiO2 plus iron inclusions)

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

Schist

Schist (various mineral compositions)

Lapis Lazuli

Lapis lazuli (a metamorphic rock primarily composed of Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Sandstone

Clastic Sedimentary Rock (composed mostly of SiO2)

Quartzite with inclusions

Metamorphic Rock (Mainly SiO2)