Sedimentary Or Metamorphic

Biotite in Host Matrix

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

Biotite (Mica)

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

Peacock Ore

Bornite (Cu5FeS4)

Mica

Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Rhodonite

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

Epidote in Quartz (Epidosite)

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

Yellow Aventurine

Quartz (Silicon Dioxide - SiO2) with inclusions of Mica

Rhodonite

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

Yellow Aventurine (Yellow Quartzite)

Silicon Dioxide (SiO2) with inclusions

Lapis Lazuli

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

Rhodonite

Rhodonite (Mn2+SiO3)

Jade

There are two distinct minerals commonly known as Jade: Jadeite (NaAlSi2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the appearance, these spheres are likely Nephrite.

Rhodonite

Rhodonite (MnSiO3)

Prase or Green Quartz

Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety, likely a orthogneiss or paragneiss depending on parent rock)

Pink Feldspar

Potassium Feldspar (KAlSi3O8)

Muscovite Mica

Muscovite [KAl2(AlSi3O10)(OH)2]

Ruby (Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Biotite on Quartz Matrix

Biotite - K(Mg,Fe)3(AlSi3O10)(OH,F)2 with Quartz (SiO2)

Biotite (Mica)

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

Orthoclase Feldspar

Potassium Aluminum Silicate (KAlSi3O8)

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(OH)2

Unakite

Epidotized Granite

Magnetite or Hematite-rich Ore

Magnetite (Fe3O4) or Hematite (Fe2O3)

Ruby Zoisite

Anyolite (Composition of Green Zoisite, Black Tschermakite, and Red Corundum)

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Charnockite

Orthopyroxene-bearing granite (Charnockite)

Quartzite River Rock

Quartzite (primarily SiO2)

Schist

Mica Schist (Composition typically involves Muscovite, Biotite, Quartz, and Feldspar)

Biotite Mica in Host Rock

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

Greenshist / Chlorite Schist

Chlorite schist (contains (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2 mixed with SiO2)

Slate

Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)

Greenschist

Greenschist (Major minerals include Chlorite, Actinolite, and Epidote)

Orthoclase Feldspar (or K-Feldspar)

Orthoclase (KAlSi3O8)

Talc

Talc (Mg₃Si₄O₁₀(OH)₂)

Banded Gneiss

Gneiss (pronounced "nice")

Diopside (likely Chromian Diopside)

Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.

Garnet

Garnet Group (Silicate Minerals)

Epidote (likely Unakite component or Epidosite)

Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))

Milky Quartz with Chlorite/Epidote

Silicon Dioxide (SiO2) with phyllosilicate or sorosilicate inclusions