Quartzite Pebble
Metamorphic Quartzite
metamorphic
Category
Metamorphic Mineral
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Quartzite Pebble
Metamorphic Quartzite
metamorphic
Quartz with Epidote
Silicon dioxide (SiO2) with Calcium aluminum iron silicate (Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))
mineral
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Banded Gneiss
Gneiss (Felsic to Mafic Metamorphic Rock)
metamorphic
Weathered granite or granitic gneiss
Granite; chiefly quartz, feldspar, and mica, possibly with gneissic foliation
igneous
Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Gneiss
Gneiss (foliated metamorphic rock)
metamorphic
Epidote
Calcium aluminum iron silicate hydroxide (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Iolite (Cordierite)
Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18
Mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
Mineral
Schist
Schist
metamorphic
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
mineral
Rhodonite-bearing rock
Rhodonite (MnSiO₃), likely with manganese oxides and quartz
metamorphic
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite)
mineral
Ruby (Raw Corundum)
Corundum (Al2O3) with Chromium traces
mineral
Brown Marble
Metamorphic Limestone (CaCO3)
metamorphic
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
mineral
Rhodonite
Manganese Inosilicate (MnSiO3)
Mineral
Peacock Ore
Bornite (Cu5FeS4) with surface tarnish
mineral
Raw Emerald (Emerald Beryl)
Beryl (Be3Al2Si6O18) with chromium/vanadium impurities
mineral
Tumbled jade-like stone, likely jadeite or nephrite
Jadeite (NaAlSi₂O₆) or nephrite, a fibrous amphibole aggregate
mineral
Quartz pebble
Silicon dioxide (SiO2)
mineral
Gneiss (likely biotite–quartz–feldspar gneiss)
Foliated gneiss; primarily quartz (SiO₂), feldspar, and biotite mica
metamorphic
Banded gneiss
Foliated gneiss, likely quartz–feldspar–biotite gneiss
metamorphic
Banded gneiss
Gneiss, a foliated metamorphic rock; likely quartz–feldspar–mica gneiss
metamorphic
Tumbled banded gneiss
Gneiss, a foliated metamorphic rock; exact mineral composition cannot be determined from the image
metamorphic
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Weathered, iron-stained metamorphic rock (likely gneiss or schist)
Uncertain from the photograph; possibly quartz–feldspar–mica gneiss or schist
metamorphic
Schist
Metamorphic Rock (Schist)
metamorphic
Carved jade pendant
Likely jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); the image alone cannot distinguish them
gemstone
Aquamarine (Beryl)
Beryllium Aluminum Silicate - Be3Al2Si6O18
gemstone
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
White quartz pebble (probable)
Quartz, silicon dioxide (SiO₂)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Blue Quartz (Dumortierite Quartz)
SiO2 with inclusions of AlAl6BSi3O18
mineral
Emerald in Matrix (Quartz/Schist)
Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities
mineral