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Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Granite

Phaneritic Plutonic Igneous Rock (Granite)

Quartz (likely Rose Quartz or Milky Quartz based on color)

Quartz (SiO2 - Silicon Dioxide)

Vesicular Basalt with Epidote

Vesicular Basalt (Mg, Fe)2SiO4 with Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))

Bituminous Coal (with Anthracite or Vitrinite inclusion)

Organic-rich Sedimentary Rock (Carboniferous classification)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Granite

Phaneritic high-silica plutonic rock (composed primarily of Quartz, Feldspar, and Mica)

River Stone / Pebble

Clastic Sediment (composed largely of Quartz, Feldspar, and various rock fragments)

Druzy Quartz Geode (Oco or Moroccan variety)

Silicon Dioxide (SiO2)

Porphyritic Basalt (or Porphyry)

Porphyritic Basalt (Mafic volcanic rock with phenocrysts)

Eclogite

Eclogite (Omphacite + Almandine-Pyrope Garnet)

Sandstone (Banded)

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Chert (Septarian or Banded Nodular Variety)

Microcrystalline Quartz (SiO2)

Petrified Wood

Silicified Wood (SiO2)

Basalt

Basalt (a mafic extrusive igneous rock)

Sandstone

Arenite (primarily SiO2)

Pumice

Vesicular Rhyolite or Andesite (Amorphous volcanic glass)

Mookaite Jasper

Siliceous (chert) sedimentary rock, a form of Jasper

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide)

Metal Alloy (Jewelry)

Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.

Fancy Jasper (Ocean Jasper or River Jasper variant)

Silicon Dioxide with inclusions (SiO2)

Shale or Slate with Quartz Veins

Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins

Quartz

Quartz (SiO₂)

Granite

Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)

Moonstone

Adularia (orthoclase) or Albite (plagioclase), a potassium aluminum silicate of the feldspar group

Chert (Jasper/Agate variety)

Silicon Dioxide (SiO2)

Druzy Quartz on Host Rock

Silicon Dioxide (SiO2)

Muscovite (White Mica)

Muscovite - Potassium aluminum silicate: KAl2(AlSi3O10)(F,OH)2

Basalt with Calcite Veins

Basalt (containing CaCO3 inclusions)

Smoky Quartz

Silicon Dioxide (SiO2)

Carnelian

Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)

Gneiss (specifically a granitic gneiss cobble)

Gneiss (high-grade regional metamorphic rock)

Biological Specimen (Domestic Dog)

Canis lupus familiaris

White Topaz

Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2

Lapis Lazuli (in Matrix)

Na8[Al6Si6O24]S2 (Lazurite as the primary component)

Green Jasper

Silicon Dioxide (SiO2) with impurities

Petrified Wood

Silicified Wood (SiO2)

Sandstone

Arenite (Siliclastic sedimentary rock, primarily SiO2)

Quartz (Druzy) in host rock

SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)

Shale with Vein Infillings

Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.

Pyrite (on host rock/ore)

Iron Sulfide (FeS2)

Jasper (likely Ocean Jasper or Variegated Jasper)

Silicon Dioxide (SiO2) with impurities