Mineral

Likely feldspar (rough specimen)

Probably potassium feldspar, KAlSi₃O₈; exact identification is uncertain from the image

Fluorite (Rainbow, Purple-Blue Tumbled)

Calcium Fluoride (CaF2)

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Pegmatitic quartz–feldspar rock

Granitic pegmatite, composed mainly of quartz (SiO₂) and feldspar; mica may also be present

Likely serpentinite (serpentine-rich rock)

Serpentinite, composed mainly of serpentine-group minerals (lizardite, antigorite, or chrysotile); identification from the photo is tentative.

Clear quartz (rough quartz crystal)

Quartz, silicon dioxide (SiO₂)

Quartz with Mineral Inclusions

Silicon Dioxide (SiO2)

Greenstone (likely chlorite- or actinolite-rich metabasalt)

Metamorphosed mafic volcanic rock; commonly greenschist-facies basalt, composed chiefly of chlorite, actinolite, epidote, and albite

Rounded dark-gray rock, likely diorite or andesite

Probable diorite (plagioclase and hornblende/pyroxene); identification is limited by the image

Likely banded gneiss

Foliated quartz–feldspar gneiss, with dark biotite or amphibole

Exposed shoreline bedrock and sediment

Unidentified natural rock; the image does not show enough detail for a specific geological identification

Granite pebble

Granite; predominantly quartz, feldspar, and mica

Basalt with an orange mineral vein

Fine-grained basalt, likely containing iron-stained calcite or zeolite; exact identification requires testing

Turquoise

Turquoise, CuAl6(PO4)4(OH)8·4H2O

Basalt with Secondary Mineralization (Likely Zeolites or Calcite)

Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)

Red garnet crystal cluster

Most likely almandine garnet, Fe₃Al₂(SiO₄)₃; exact species cannot be confirmed from the image alone.

Rounded granite pebble

Granite, a quartz–feldspar–mica plutonic rock

Green fluorite (likely rough specimen)

Fluorite, calcium fluoride (CaF₂)

Quartz on Schist

Silicon Dioxide (SiO2) on Foliated Metamorphic Rock

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Fluorite (specifically Blue John or Banded Fluorite)

Calcium Fluoride (CaF2)

Milky quartz

Quartz (silicon dioxide, SiO₂)

Green jade-like cabochon pendant

Unidentified green gem; possibly jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂)

Peach-colored feldspar fragment

Likely potassium feldspar (orthoclase or microcline; KAlSi₃O₈)

Milky quartz (rough quartz specimen)

Quartz, silicon dioxide (SiO₂)

Granite

Phaneritic Felsic Igneous Rock

Native Copper

Native Copper (Cu)

Granite

Intrusive igneous felsic rock

Green glass-like mineral specimen, likely fluorite

Fluorite (calcium fluoride, CaF₂), if natural; appearance may also indicate colored glass

Red cabochon gemstone, likely garnet

Likely almandine garnet, Fe₃Al₂(SiO₄)₃; identification from the image is uncertain

Likely rough garnet (possibly almandine)

Garnet group; likely almandine, Fe₃Al₂(SiO₄)₃

Likely garnet-bearing rock (possibly almandine garnet in dark matrix)

Garnet, probably almandine (Fe₃Al₂(SiO₄)₃); host rock is not identifiable from this image

Sodalite

Na8Al6Si6O24Cl2

Pyrite on Quartz matrix

Iron Disulfide (FeS2) on Silicon Dioxide (SiO2)

Specular Hematite

Hematite (Fe2O3)

Likely rough garnet

Garnet-group mineral, possibly almandine (Fe₃Al₂(SiO₄)₃)

Gneiss (specifically Banded Gneiss)

Gneiss

Banded metamorphic rock (likely gneiss or schist)

Foliated quartz–feldspar–mica rock; exact identification is uncertain from the photograph

Quartz Vein in Hematitic Siltstone

Hydrothermal Quartz (SiO2) in Ferriferous Matrix

Banded quartz-rich rock (possibly pegmatite)

Likely quartz–feldspar pegmatite; identification is tentative from the photo

Copper Ore

Cupriferous Rock / Mixed Mineral Matrix

Weathered copper-bearing rock, possibly chrysocolla-bearing quartz or host rock

Indeterminate from the photo; possible chrysocolla (hydrated copper silicate) with quartz or other host minerals