Metamorphic Mineral

Lapis Lazuli

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

Biotite Schist

Biotite Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)

Quartzite

Quartzite (primarily SiO2)

River Cobble (Phyllite or Quartzite)

Metasedimentary Rock (often containing SiO2 or KAl2(AlSi3O10)(OH)2)

Greenschist

Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)

Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)

Epidote with Black Hornblende and White Quartz mixture

Schist

Mica Schist (Quartz-Muscovite-Biotite Schist)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Mica Schist

Mica Schist (Intermediate-grade Metamorphic Rock)

Titanium Quartz (Rough)

Titanium-included Silicon Dioxide (SiO2 + Ti)

Blue Sapphire

Corundum (Al2O3)

Garnet (likely Almandine or a blend)

Garnet group: X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+. Given the dark, somewhat reddish-brown appearance in the image, it's likely Almandine (Fe3Al2(SiO4)3) or a mix with other iron-rich garnets.

Quartz Pebble

Silicon Dioxide (SiO2)

Tiger's Eye (Rough)

Macrocrystalline Quartz (SiO2 with inclusions of Crocidolite)

Pyrite in Quartz

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions)

Ferruginous Quartz (River Pebble)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Blue Calcite

Calcium Carbonate (CaCO3)

Muscovite Mica (Granitic Pegmatite)

Muscovite - KAl2(AlSi3O10)(OH)2

Blue Kyanite

Kyanite (Al2SiO5)

Graphite

Graphite (Native Carbon, C)

Rough Ruby (Corundum) in Zoisite Matrix

Al2O3 (Aluminum Oxide) with Ca2Al3(SiO4)3(OH)

Marble

Recrystallized Calcite (CaCO3)

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite, Na8[AlSi O4]6[S,Cl,SO4,OH]2)

Quartzite with Iron Inclusions

Quartzite (primarily SiO2 with Fe2O3 impurities)

Milky Quartz

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

White Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Banded Agate

Cryptocrystalline Quartz (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Tiger's Eye (Inlaid in a band)

SiO2 (Silicon Dioxide with Crocidolite inclusions)

Moonstone (specifically White Moonstone/Adularia)

Potassium aluminum silicate ((K,Na)AlSi3O8)

Blue Sapphire

Corundum (Al2O3 with trace amounts of iron and titanium)

Emerald in Matrix

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

Quartz (River Cobble)

Silicon Dioxide (SiO2)

Rough Quartz (Grey-Green)

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)