Metamorphic Mineral

Moonstone

Adularia or Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8), specifically with lamellar exsolution of albite and orthoclase.

Orthoclase Feldspar (or K-Feldspar)

Orthoclase (KAlSi3O8)

Sunstone

Plagioclase Feldspar (specifically Oligoclase variety containing hematite or goethite inclusions)", composition: (Ca,Na)(Al,Si)2Si2O8

Smoky Quartz

Smoky Quartz (SiO ₂)

Aventurine (Green Aventurine)

Quartz with Fuchsite Inclusions (SiO2)

Pyrite

Pyrite (FeS2)

Tiger's Eye

Tiger's Eye (a variety of Chalcedony, which is cryptocrystalline quartz). Chemical Formula: SiO2 with inclusions of crocidolite fibers.

Lapis Lazuli

Complex mixture of minerals, primarily Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Amethyst

SiO2 (Silicon Dioxide)

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Quartz with Mica (Micaceous Quartz)

Silicon Dioxide (SiO2) with Phyllosilicates

Phyllite

Phyllite (Foliated metamorphic rock)

Granodiorite (Gneissic Pebble)

Granodiorite displaying minor foliation

Serpentine, likely a variety of Chrysoprase (green chalcedony) or a similar translucent green mineral.

Serpentine Group Minerals (e.g., Antigorite, Lizardite) or Chalcedony (SiO2) with nickel impurities for Chrysoprase green.

Amethyst

Amethyst is a variety of Quartz (SiO₂)

Quartz River Pebbles

Silicon Dioxide (SiO2)

Garnet (likely Almandine, Pyrope, or a blend)

Garnet group minerals: X3Y2(SiO4)3, where X and Y represent various metal ions (e.g., Almandine: Fe3Al2(SiO4)3, Pyrope: Mg3Al2(SiO4)3)

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)

Epidote in Quartz (Epidosite)

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Muscovite Mica

Muscovite (KAl₂(AlSi₃O₁₀)(F,OH)₂))

Muscovite Schist with Quartz

Mica Schist (KAl2(AlSi3O10)(OH)2)

Aquamarine

Aquamarine (Beryl variety); Be3Al2Si6O18

Amazonite

KAlSi3O8 (Potassium Aluminum Silicate) - a variety of Microcline Feldspar

Quartz

Quartz (Silicon Dioxide - SiO2)

Quartz (likely milky quartz or a stained variety)

Silicon Dioxide (SiO₂)

Green Aventurine

Aventurine (a variety of Quartz, SiO2)

Jasper (Iron-rich Chalcedony)

Jasper (Microcrystalline Silicon Dioxide, SiO2 plus iron oxide impurities)

Dyed Quartzite

Metamorphosed Quartz (SiO2) with synthetic pigment

Slate

Foliated Metamorphic Rock (Mainly composed of Quartz, Illite, Chlorite)

Rose Quartz

Rose Quartz (SiO₂)

Quartz Vein in Metamorphic Rock

Silicon Dioxide (SiO2) within Metasedimentary host

Blue Tiger's Eye

Crocidolite (fibrous riebeckite) silicified to Quartz (SiO2)

Quartz (Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Amazonite

Amazonite (KAlSi3O8)

Moonstone

Orthoclase Feldspar (specifically showing adularescence)

Green Aventurine

Aventurine (a variety of Quartz, SiO2)

Quartz with Mica (likely Muscovite)

Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide Fluoride

Quartzite

Quartzite (SiO2)

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

Quartzite pebble

Quartzite (primarily SiO2)

Quartzite (Iron-stained)

Quartzite (SiO2 with iron oxides)

Phyllite

Phyllite