Mineral (Metal)

Shale

Lutaceous Sedimentary Rock

Garnet (likely Almandine or Pyrope)

Garnet Group (e.g., Almandine: Fe3Al2(SiO4)3; Pyrope: Mg3Al2(SiO4)3)

Leopard Skin Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Garnet (Almandine/Pyrope variety)

Silicate mineral group; typically Fe3Al2(SiO4)3 (Almandine) or Mg3Al2(SiO4)3 (Pyrope)

Peridot (likely, based on color and appearance)

Olivine group mineral, specifically (Mg,Fe)2SiO4 (Forsterite-Fayalite solid solution series)

Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Geode (unopened)

Chert / Chalcedony Geode (SiO2)

Sugilite

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)

Pink Granite

Phaneritic intrusive igneous rock (Felsic)

Coarse-grained Quartz with Feldspar inclusions

Crystalline Quartz (SiO2) with Orthoclase/Plagioclase Feldspar inclusions

Foliated Gneiss (River-Worn Pebble)

Gneiss (High-grade Regional Metamorphic Rock)

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt

Basalt with Quartz/Calcite Inclusions

Mafic Volcanic Rock (Fe-Mg silicate rich)

Quartzite (Yellow/Iron-stained Quartz)

Quartzite (primarily SiO2 with iron oxide impurities)

Granite with Orthoclase and Hematite Staining

Phaneritic Felsic Igneous Rock (primarily SiO2 with KAlSi3O8)

Granite

Phaneritic Plutonic Felsic Rock

Pink Granite

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

Gneiss (Metamorphic Rock)

Gneiss

Quartzite Pebble (with Iron Inclusions)

Quartzite (primarily SiO2 with Fe2O3/FeOOH impurities)

Basalt with Epidote Veins

Mafic Igneous Rock (Basalt)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Asphalt (Bituminous pavement fragment)

Artificial conglomerate / Bitumen-Aggregate mixture

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Diamond (Uncut Crystal)

Carbon (C)

Quartz (Milky/Bull Quartz)

Silicon Dioxide (SiO2)

Dendritic Agate (or Dendritic Opal)

SiO2 (for Agate), SiO2·nH2O (for Opal)

Bull Quartz

Quartz (Silicon Dioxide - SiO2)

Lapis Lazuli

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite and other associated minerals)

Mica Schist

Crystalline Schist (often containing Muscovite, Biotite, and Quartz)

Amygdaloidal Basalt

Amygdaloidal Basalt (extrusive volcanic rock with secondary mineral infilling)

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Yellow Agate

Silicon Dioxide (SiO2)

Ferruginous Sandstone

Arenite with Iron-oxide cement

Shungite

Non-crystalline carbon (allotrope of carbon)

Caribbean Calcite

Calcite (CaCO3) with Aragonite (CaCO3)

Milky Quartz

Silicon Dioxide (SiO2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Quartz

Silicon dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Obsidian

Obsidian (Volcanic Glass, complex silicate)