Igneous, Sedimentary, Metamorphic

Gneiss (Pebble)

Gneiss

Gneiss (with iron staining)

Gneiss

Gneiss

High-grade regional metamorphic rock (Foliated)

Gneiss

Gneiss

Gneiss

Gneiss

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Gneiss

Gneiss (High-grade Regional Metamorphism)

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)

Quartz Pebble

Crystalline Silica (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz

Quartz (Silicon Dioxide - SiO2)

Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment)

Quartz (SiO₂)

Greenschist

Chlorite Schist

Gneiss

Gneiss (foliated metamorphic rock)

River Rock (Gneiss/Schist mix)

Foliated Metamorphic Rock (Gneiss)

Banded Gneiss

Banded Orthogneiss or Paragneiss (Quartz-Feldspathic Gneiss)

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Quartz (likely Jasper or Chert variety)

Quartz (SiO₂)

Greenstone

Greenschist / Meta-basalt

Gneiss

Gneiss (Metamorphic Rock)

Banded Gneiss

Gneiss (Metamorphic Rock)

Amphibolite (specifically Hornblende Schist/Gneiss)

Amphibole-rich Metamorphic Rock

Hematite

Iron(III) oxide (Fe2O3)

Pyrite

Iron Sulfide (FeS2)

Biotite (Black Mica)

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

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained or Chalcedony varieties)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Quartz (specifically Milky/White Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky Crystal fragment)

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Crystalline Silicon Dioxide (SiO2)