Mineral And Metamorphic Rock

Weathered metamorphic rock, likely chlorite schist or greenstone

Chlorite-rich schist/greenschist; exact identification requires testing

Quartz-rich breccia or vein quartz with dark inclusions

Milky quartz (SiO₂), likely brecciated and cemented with iron oxides and dark mica/amphibole minerals

Raw quartz crystal fragment

Quartz (silicon dioxide, SiO₂)

White quartz pebble (likely milky quartz)

Quartz, SiO₂; identification from the photo is provisional

Small quartz-rich rock fragment (tentative)

Likely quartz (SiO₂) with possible feldspar or carbonate inclusions

Aventurine (Green Quartz)

Silicon dioxide with inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Quartz on Schist

Silicon Dioxide (SiO2) on Foliated Metamorphic Rock

Auriferous Quartz (Gold-bearing Quartz)

Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides

Small transparent crystal fragment, possibly quartz

Quartz (SiO₂), tentative identification

Granite-like granitic rock

Crystalline plutonic rock, primarily quartz, feldspar, and mica/amphibole

Coarse-grained granite or granitic pegmatite fragment

Granite; primarily quartz, feldspar, and mica

Quartz-bearing rock or quartz-rich mineral specimen

Quartz, silicon dioxide (SiO₂); exact host rock is uncertain from the image

Milky quartz (likely)

Quartz, silicon dioxide (SiO₂)

Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)

Calcite

Gneiss

High-grade regional metamorphic rock (Foliated)

Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper)

FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)

Gneiss

Foliated Metamorphic Rock

Rough Apatite in Matrix

Fluorapatite / Chlorapatite / Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))

Quartz-rich stone, likely milky quartz

Quartz (silicon dioxide, SiO₂), possibly iron-stained or feldspar-bearing

Small polished or naturally worn stone, possibly quartz-bearing rock

Indeterminate from the blurred image; likely quartz (SiO₂) or a pale feldspar-rich fragment

Gneiss

Gneiss (Metamorphic Rock)

Quartz-rich metamorphic rock, likely mica schist

Mica schist; chiefly quartz (SiO₂) with biotite/muscovite mica and possible feldspar

Gneiss (with Quartzite layers)

Gneissic Metamorphic Rock

Mica Schist

Mica Schist (Quartz-Mica Metamorphic Rock)

Hematite

Iron(III) oxide (Fe2O3)

Likely foliated metamorphic rock (quartz-mica schist or gneiss)

Quartz–feldspar–mica metamorphic rock; exact identification requires a fresh surface and tests

Rough Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Gold Nugget / Placer Gold

Native Gold (Au)

Slate

Foliated Metamorphic Rock

Gneiss (with Mica and Quartz)

Gneissic Metamorphic Rock

Likely pyrite-bearing metamorphic rock

Quartz–mica schist or gneiss with disseminated pyrite (FeS₂)

Quartz-rich rock or quartz specimen

Quartz (SiO₂), likely massive quartz or quartz-bearing host rock

Quartz in Matrix (Lepidolite or Quartzite)

Silicon Dioxide (SiO2) with host rock

Quartz-rich rock, possibly iron-stained quartz or quartzite

Quartz (SiO₂), potentially quartzite with iron-oxide staining

Likely tumbled greenstone (identity uncertain)

Greenstone: metamorphosed mafic volcanic rock, commonly composed of chlorite, actinolite, and epidote

White quartz fragment (probable)

Quartz, silicon dioxide (SiO₂)

Quartz-rich crystal cluster (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Milky quartz

Quartz (SiO₂), likely massive milky quartz

Rounded greenstone river cobble

Likely serpentinite or chlorite-rich metamorphic rock; exact identification requires testing

Quartz-rich pebble, possibly milky quartz

Quartz (SiO₂), potentially quartzite if intergrown with other grains

Quartz Vein in Metamorphic Rock

Quartz-veined Schist or Gneiss

Milky quartz pebble

Quartz (silicon dioxide, SiO₂)