This Is Not A Rock Or Mineral

General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)

Anhydrite (Calcium Sulfate, CaSO4)

Granodiorite

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

Unknown Organic Object (likely a berry or fruit)

Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.

Metallic Ornament / Jewelry

N/A - This is an artificial object, not a geological specimen.

Unidentifiable Specimen

Undetermined

N/A - Image does not contain a rock or mineral

Anthropogenic textile material

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

Polyester (Polyethylene terephthalate) / Faux Fur

Unable to Identify (Image Obscured)

Biotite Schist (likely)

Biotite Schist (rock), Biotite (mineral)

Granite

Granite

Sandstone

Quartz Sandstone (predominantly)

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

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Dendritic Jasper

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

Amethyst

Amethyst (Silicon Dioxide - SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Gold (Elemental Metal)

Gold (Au)

Grey River Stone (Gneiss/Schist mix)

Foliated Metamorphic Rock (variable mineral formula)

The user-provided image does not contain a rock or mineral specimen

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Amygdaloidal Basalt

Amygdaloidal Basalt (extrusive volcanic rock with mineral inclusions)

Popcorn

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

Jasper in Basalt Matrix

Silicon Dioxide (SiO2) with impurities; Chalcedony

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of iron oxide)

Blue Chalcedony

Microcrystalline Quartz (SiO2)

Chipped Glass/Plastic Fragment

Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic

Serpentinite

Serpentinite (a rock composed predominantly of serpentine group minerals)

Basalt

Mafic volcanic rock (Primary minerals: Plagioclase feldspar, Pyroxene)

Schist

Schist (metamorphic rock)

Note: Item is not a geological specimen

Homo sapiens (Dermal Appendage: Pilus)

Sandstone

Sandstone (composed primarily of sand-sized minerals or rock grains)

N/A (Non-Geological Object)

Granite

Phaneritic Felsic Igneous Rock (Main minerals: SiO2, KAlSi3O8, NaAlSi3O8)

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Carnelian

Carnelian (Microcrystalline Quartz, SiO2)

Man-made Synthetic Material (Plastic/Composite)

Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)

Note: Item is not a geological specimen

Guitar Components (Steel, Nickel, Plastic, Wood)

Shale or Siltstone

Sedimentary Clastic Rock (Variable mineral composition including quartz and clay minerals)

Hypersthene

Hypersthene ((Mg,Fe)SiO₃)

Granite (Pink/Red)

Phaneritic Plutonic Felsic Rock (major minerals: Quartz, Orthoclase Feldspar, Plagioclase Feldspar)

Pebble (likely a type of sandstone or quartzite pebble)

Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

N/A (This is a digital image of a bar graph)

Digital Data Visualization (Bar Chart)