Sedimentary Or Metamorphic Derived

Quartz (likely Jasper or Chert variety)

Quartz (SiO₂)

Carnelian Agate

Chalcedony (Silicon Dioxide, SiO2)

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Ruby Zoisite

Anyolite (Zoisite with Ruby and Pargasite)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Schist

Mica Schist

Banded Gneiss

Gneiss (pronounced 'nice')

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Pink Quartz (Inclusion-rich Quartzite)

SiO2 (Silicon Dioxide) with Iron Oxide / Hematite inclusions

Green Aventurine

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

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Schist

Mica Schist (primarily Muscovite and Quartz)

Marble

Recrystallized Calcite (CaCO3)

Pink Marble or Rose Quartz (Likely Pink Marble based on carving texture)

Recrystallized Calcite (CaCO3)

Green Aventurine

Silicon dioxide (SiO2) with inclusions of Fuchsite

Quartz (specifically Milky Quartz/Quartzite)

Silicon Dioxide (SiO2)

Rhodonite

Rhodonite (Mn, Fe, Mg, Ca)SiO3

Green Aventurine

Silicon dioxide (SiO2) with inclusions of Fuchsite mica

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Rhodonite

Rhodonite (Manganese silicate), (Mn,Fe,Mg,Ca)SiO3

Schist

Mica Schist

Red Jasper

Jasper (Silicon Dioxide with Hematite inclusions), SiO2

Carnelian Agate

Chalcedony (SiO2) with iron oxide inclusions

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3

Pink Quartzite

Quartzite (SiO2 with iron oxide impurities)

Green Fuchsite in Quartz (sometimes called Green Aventurine)

Fuchsite (Chrome-rich Muscovite) K(Al,Cr)2(AlSi3O10)(OH)2 in Quartz SiO2

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3

Aquamarine

Beryl (Be3Al2Si6O18 with iron traces)

Schist

Crystalline Schist (often containing Muscovite, Biotte, or Quartz)

Schist

Mica Schist (predominantly Muscovite/Biotite)

Mica Schist

Mica Schist (primarily Muscovite and Biotite KAl2(AlSi3O10)(OH)2)

Green Aventurine (Tumbled)

Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Jasper

Jasper (Cryptocrystalline variety of Quartz, SiO2)

Rhodonite

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Yellow Beryl (Heliodor)

Beryllium aluminum silicate (Be3Al2Si6O18)

Ruby in Zoisite

Anyolite (combination of Ca2Al3(SiO4)3(OH) and Al2O3:Cr)

Green Aventurine

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

Lapis Lazuli

Complex metamorphic rock primarily composed of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Ruby in Zoisite (Anyolite)

Corundum var. Ruby in Zoisite (Al2O3 + (Ca2Al3(SiO4)3(OH)))