Mineral With Metamorphic Or Igneous Host

Chalcedony Geode (Botryoidal Agate)

Silicon Dioxide (SiO2)

White Agate (Chalcedony)

Silicon Dioxide (SiO2)

Druzy Quartz on Host Rock

Silicon Dioxide (SiO2) with various iron-oxide inclusions

Ruby

Corundum (Al2O3:Cr)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz on Basalt

Silicon Dioxide (SiO2) on Mafic Igneous Rock

Quartz (Milky or Smoky variant)

Silicon Dioxide (SiO2)

Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Schist (Diamond Drill Core)

Mica Schist

Quartz Vein in Granite

Crystalline Silicon Dioxide (SiO2) in Granitic Matrix

Quartz Vein with Host Rock (Greywacke/Siltstone)

Silicon Dioxide (SiO2) within Clastic Sedimentary/Metamorphic Matrix

Lodolite (Garden Quartz)

Silicon Dioxide (SiO2) with inclusions (Chlorite, Hematite, etc.)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Ruby

Corundum (Aluminium Oxide with Chromium impurities, Al2O3:Cr)

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.

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Basalt with Quartz/Calcite Veins

Basalt (Aphanitic Mafic Volcanic Rock) with Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) inclusions

Carnelian

Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Blue Quartz

Quartz (SiO2) with inclusions

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Ruby

Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)

Bull Quartz

Quartz (Silicon Dioxide, SiO2)

Pegmatite (likely Granitic Pegmatite)

Pegmatite (a coarse-grained igneous rock, often with granitic composition)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

Quartz Crystal (specifically a small Clear Quartz point)

Silicon Dioxide (SiO2)

Banded Agate Geode (with Microcrystalline Quartz)

Silicon Dioxide (SiO2) - variety Chalcedony/Agate

Agate (specifically Carnelian or Honey Agate)

Silicon Dioxide (SiO2)

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide with Iron Oxide impurities)

Serpentinite

Serpentinite (complex silicate of magnesium, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Gold Ore

Auriferous Quartz and Sulfide Mineralization in Host Rock

Coarse-grained Quartz and Feldspar Pegmatite

Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)

Banded Agate (Polished Slice)

Chalcedony (cryptocrystalline Quartz), SiO2

Bronzite

MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)

Agate (or Chalcedony with Moss/Jasper Inclusions)

Silicon Dioxide (SiO2)

Rough Quartz in Pegmatite Matrix

Quartz (Silicon Dioxide - SiO2) in Granitic Pegmatite

Granite with Quartz Vein

Phaneritic Felsic Igneous Rock (composed of Quartz [SiO2], Feldspar, and Mica)

Green Aventurine in Host Rock

SiO2 (Quartz with Fuchsite inclusions)

Gold Nugget

Native Gold (Au)