Amphibolite
Amphibolite (rich in amphibole and plagioclase feldspar)
metamorphic
Category
Mineraloid (Synthetic)
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Quartzite
Quartzite (SiO2)
metamorphic
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite
Granite (Felsic intrusive igneous rock)
igneous
Mica Schist
Mica Schist (primarily Muscovite or Biotite)
metamorphic
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Drill Core Sample
Cylindrical Rock Core (Specific mineralogy varies by extraction site)
Metamorphic (Likely Gneiss or Schist based on texture)
Weathered iron-rich sandstone or ironstone
Ferruginous sandstone, likely limonite/goethite-cemented quartz arenite
sedimentary
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Organic / Biological
Red Granite
Phaneritic Felsic Intrusive Igneous Rock (primarily K-feldspar, Quartz, and Biotite)
igneous
Red Granite
Phaneritic Plutonic Rock (High Potassium Feldspar)
igneous
Tumbled kambaba jasper (likely)
Kambaba jasper, a silica-rich microcrystalline quartz aggregate, commonly containing fossilized cyanobacterial structures and dark green amphibole/pyroxene minerals
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Small rounded pebble
Indeterminate lithic grain; likely weathered sandstone, iron-stained quartz-rich rock, or a concretion
sedimentary
Granite
Granite (Phaneritic igneous rock)
igneous
Granite
Phaneritic Igneous Rock (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase)
igneous
Dendritic Quartz
Silicon Dioxide (SiO2) with Manganese Oxide inclusions
mineral
Coal (Bituminous / Anthracite)
Carbonaceous Sedimentary Rock (C)
sedimentary
Rhyolite
Extrusive Felsic Igneous Rock
igneous
Granite
Granite
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Iron-rich weathered stone, possibly hematite-rich ironstone
Hematite/goethite-bearing ironstone; predominantly Fe₂O₃ and FeO(OH)
mineral
Rhodonite-bearing metamorphic rock
Manganese-rich metamorphic rock, chiefly rhodonite (MnSiO₃), with quartz and manganese oxides
metamorphic
Weathered granite pebble
Granite, chiefly quartz (SiO₂), feldspar, and mica/amphibole
igneous
Desert Rose Fragment (Atypical) / Weathered Chert
Silicon Dioxide (SiO2) or Barium Sulfate (BaSO4) depending on exact mineralogy
sedimentary
Banded Gneiss
Gneiss (Metamorphic rock of variable mineralogy, often quartz-feldspar base)
metamorphic
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Metamorphic
Painted Garden Rock
Coated Siltstone or Mudstone
sedimentary
Weathered iron-rich volcanic rock
Likely altered basalt or andesite with iron-oxide staining
igneous
Sandstone Concretion
Ferruginous Sandstone Concretion (Primarily SiO2 with Iron Oxide cement)
sedimentary
Diorite
Diorite (an intermediate intrusive igneous rock)
igneous
Granite
Phaneritic Igneous Rock (Granite)
igneous
Granite
Intrusive Phaneritic Felsic Igneous Rock
igneous
Dalmatian jasper
Orbicular microcrystalline quartz rock, commonly rhyolitic or volcanic-feldspar matrix with black arfvedsonite/alkali-amphibole inclusions
igneous
Flint or chert flake
Microcrystalline quartz (SiO₂), commonly chert/flint
sedimentary
Eclogite
Eclogite (Omphacite + Almandine-Pyrope Garnet)
metamorphic
Likely small metallic meteorite fragments
Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image
meteorite
Tumbled orange chalcedony and a gray stone disk
Chalcedony (microcrystalline quartz, SiO₂); disk likely fine-grained sandstone or slate
mineral
Limonite (Ironstone Concretion)
Limonite (Hydrous Ferric Oxides mixed with Goethite)
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Banded River Rock / Gneiss (highly weathered)
Gneiss
Metamorphic rock
Tiger's Eye (with Hematite/Jasper)
SiO2 (Silicon Dioxide) with Fe2O3 (Hematite)
mineralogical