Mineral (Found In Igneous And Metamorphic Rocks)

Amazonite

Potassium Feldspar (KAlSi3O8)

Amazonite

Amazonstone (KAlSi3O8)

Amazonite

Potassium Feldspar (Microcline) - K(AlSi3O8)

Green Aventurine

Aventurine (variety of Quartz - SiO2)

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Aragonite

Aragonite (Calcium Carbonate - CaCO3)

Green Aventurine

Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Green Aventurine

Aventurine (a variety of Quartz, SiO2)

Marble

Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.

Milky Quartz Pebble

Silicon Dioxide (SiO2)

White Agate (Chalcedony)

Silicon Dioxide (SiO2)

Chalcedony (Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Amazonite

Potassium feldspar (Microcline) - K(AlSi3O8)

Amazonite

Amazonite (KAlSi3O8, a triclinic variety of Potassium Feldspar)

Quartz Geode

Quartz (Silicon Dioxide, SiO2)

Amygdaloidal Basalt

Amygdaloidal Basalt (extrusive volcanic rock with secondary mineral infilling)

Peridot (likely, based on color and appearance)

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

Quartz (Clear / Rock Crystal)

Silicon Dioxide (SiO2)

Porphyritic Basalt (with Amygdales)

Amygdaloidal Porphyritic Basalt

Granite

Phaneritic Felsic Igneous Rock (Granite)

Amazonite

Potassium Feldspar (Microcline), K(AlSi3O8)

Sodalite

Sodalite, Na8(Al6Si6O24)Cl2

Granodiorite / Granite

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Banded Agate (Jasper-Agate)

Silicon Dioxide (SiO₂)

Green Moss Agate

Agate (Silicon Dioxide - SiO2) with inclusions of hornblende or chlorite

Labradorite (Polished Crystal Point)

Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8

Blue Zircon

Zirconium Silicate (ZrSiO4)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within metamorphic/igneous matrix

Iron-stained Quartzite / Chert

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 inclusions)

Green Moonstone

Potassium Aluminum Silicate (KAlSi3O8)

Peridot

Olivine (Mg,Fe)2SiO4

Mica Schist

Mica Schist (Schistose metamorphic rock rich in Muscovite/Biotite)

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Lapis Lazuli (Lazurite crystals on Marble)

Lazurite / (Na,Ca)8[(S,Cl,SO4,OH)2|(AlSiO4)6]

Amethyst

Silicon Dioxide (SiO2 with iron impurities)

Sapphire (likely blue synthetic sapphire or blue glass in a ring)

Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.

Rough Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Schist

Schist (various mineral compositions)

Milky Quartz Pebble

Silicon Dioxide (SiO2)