Minerals

Gneiss or Schist

Gneiss or Mica Schist with Garnet

Chrysocolla and Malachite Beads

Hydrated copper silicates (Chrysocolla) and Copper carbonate hydroxide (Malachite)

Weathered feldspar-rich pegmatite (likely orthoclase or plagioclase)

Granitic pegmatite; predominantly K-feldspar/plagioclase (KAlSi₃O₈–NaAlSi₃O₈), with quartz and dark mafic minerals

Lepidolite

K(Li,Al)3(Al,Si,4)10(O,F,OH)2

Gneiss

Gneiss

Soil with Mineral Detritus and Quartz Fragments

Regolith / Silicate Mineral Aggregate

Gneiss

Gneiss

Gneiss

Gneiss (Metamorphic Rock)

Tumbled quartz-rich pebble (likely quartzite or vein quartz)

Quartz (SiO₂), possibly quartzite with minor iron-oxide staining

Gneiss

Gneiss (High-grade metamorphic rock)

Granite

Granite (composed of Quartz, Feldspar, and Mica)

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Gneiss (specifically Banded Gneiss)

Gneiss

Greenstone / Metabasalt

Chlorite schist or Epidiorite

Greenstone

Protolith: Basaltic rock

Greenstone

Greenschist / Meta-basalt

Granite

Granite (Phaneritic intrusive igneous rock)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz-rich pegmatite fragment

Granite-family pegmatite; chiefly quartz (SiO₂), feldspar, and black mica (biotite)

Gneiss

Gneiss (foliated metamorphic rock)

Granite with Mafic Xenolith

Intrusive Igneous Rock (Felsic to Intermediate)

Granite

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

Granite

Granite (Felsic Plutonic Rock)

Pegmatite

Igneous Pegmatite

Quartz-rich pegmatite (likely feldspar–quartz rock)

Granitic pegmatite; chiefly quartz (SiO₂) and feldspar, with possible mica/iron-oxide staining

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Potassium Feldspar (Orthoclase)

KAlSi3O8 (Potassium Aluminum Silicate)

Mica-rich metamorphic rock, likely schist

Muscovite–biotite schist, possibly with quartz and feldspar

Granitic Gneiss

Gneiss (Metamorphic rock of granitic composition)

Gneiss

Gneiss (Metamorphic rock)

Granite

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)

Chrysocolla-bearing rock (likely chrysocolla in a host rock)

Chrysocolla, hydrated copper aluminosilicate: approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Weathered basalt pebble

Basalt, a fine-grained mafic volcanic rock; likely containing plagioclase and pyroxene with weathering products

Ironstone (Limonite/Hematite)

Ferruginous sedimentary rock (Fe2O3·nH2O / Fe2O3)

Quartz Pebble

Silicon Dioxide (SiO2)