Not A Rock (Animated Character)

Ruby in Fuchsite

Corundum (Al2O3) in Fuchsite (K(Al,Cr)3Si3O10(OH)2)

Not a rock, mineral, or geological specimen

Schist

N/A (a rock type, not a mineral formula)

Popcorn

Zea mays everta (P. Wilson) (Botanical name for the corn variety)

Note on Image Identification: Textile

N/A (Anthropogenic material)

Serpentinite

Serpentinite (a rock composed predominantly of serpentine group minerals)

River Rock

Sedimentary Rock (various compositions)

Metal Alloy (Likely Pewter or Sterling Silver)

Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).

Biological Bone (Patella/Knee)

Patella (part of the Human Skeletal System)

Serpentine

Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)

Portable Ceramic Space Heater

Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements

Gneiss

Gneiss (a rock type, not a specific mineral with a formula)

Granite

Granite (a felsic intrusive igneous rock)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Pumice

Pumice (volcanic rock)

N/A - Non-Geological Item

Bauxite Ore

Hydrated aluminum oxides (e.g., Gibbsite Al(OH)3, Boehmite ̲̲̲̲AlOOH, Diaspore ̲̲̲̲AlOOH)

Digital Multimeter (Synthetic Object)

Digital Multimeter (DMM)

Granite

Granite (a common rock name, not a single mineral species, composed primarily of quartz, feldspar, and mica/amphibole)

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

Quartz (Druzy) in host rock

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

Grass (Organic Matter/Soil)

Poaceae (family of monocotyledonous flowering plants)

Weathered porphyritic basalt

Basalt, likely plagioclase-phyric basalt; primarily a fine-grained aggregate of plagioclase feldspar, clinopyroxene, and possibly olivine or iron-titanium oxides

Man-made earbud charging case (Not a rock or mineral)

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Pebble

Clast (specifically a granule or small pebble)

Quartz Geode

Silicon Dioxide (SiO2)

Lapis Lazuli

Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)

Graphic Granite

Pegmatitic Granite

Mother of Pearl (Nacre)

Calcium Carbonate (primarily aragonite, with conchiolin)

Epidote (or Epidote-rich rock)

Epidote. Mineral formula: Ca2(Al,Fe)3(SiO4)3(OH).

Baltic Amber (Butterscotch or Egg Yolk Variety)

Succinite (chemical formula: C10H16O)

Opal ring

Opal (hydrated amorphous silica, SiO₂·nH₂O)

Northern Shoveler Duck (Note: This is a biological specimen, not a rock)

Spatula clypeata

Emerald

Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities

Weathered flint or chert fragment

Microcrystalline quartz (SiO₂), likely chert/flint

Beryl (Emerald Variety)

Beryllium Aluminum Silicate (Be3Al2(SiO3)6)

Emerald

Beryl (Be3Al2(SiO3)6)

Graphic Granite

Graphic Granite (a runic intergrowth of Quartz and Feldspar)

Lapis Lazuli

Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Chinese Writing Stone

Porphyritic Basalt or Andesite with Feldspar phenocrysts (likely Orthoclase or Plagioclase)

Pyrite-rich sulfide ore (likely pyrite with chalcopyrite)

Pyrite, FeS₂; possible chalcopyrite, CuFeS₂, and minor quartz or sphalerite

Lapis Lazuli

Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])