Mineral And Metamorphic Rock

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Quartz crystal fragment

Quartz (silicon dioxide, SiO₂)

Gneiss

Foliated Metamorphic Rock

Quartz Vein in Amphibolite / Gneiss

Quartz (SiO2) in Mafic Metamorphic Host Rock

Unakite-like epidote–feldspar rock

Epidote + K-feldspar/plagioclase ± quartz; compositionally similar to unakite

Magnetite

Fe3O4 (Iron(II,III) oxide)

Milky quartz

Quartz (silicon dioxide, SiO₂)

Gneiss

Gneiss (Metamorphic Rock)

Banded River Rock / Gneiss (highly weathered)

Gneiss

Milky quartz (likely weathered quartzite or quartz vein fragment)

Quartz, silicon dioxide (SiO₂)

Quartz with Mafic/Chlorite Veins

Silicon Dioxide (SiO2) with Chlorite/Epidote cross-veining

Schist

Schist (Foliated Metamorphic Rock)

Weathered green metamorphic rock, possibly serpentinite or greenstone

Likely serpentinite (serpentine-group minerals) or chlorite/epidote-rich greenschist; exact identification requires testing

Milky quartz

Quartz (SiO₂), likely massive or drusy quartz

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

Mica Schist

Metamorphic Rock (Schistose)

Milky quartz fragment

Quartz, silicon dioxide (SiO₂)

Small quartz-rich pebble or rock fragment

Quartz (silicon dioxide, SiO₂), possibly with iron-oxide staining or host-rock inclusions

Gneiss

Foliated Metamorphic Rock

Tumbled quartz-rich pebble

Quartz (SiO₂), likely milky quartz or quartzite fragment

Gneiss

Gneissic Metamorphic Rock

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

Schist

Metamorphic Rock (Schist)

Gneiss with Quartz Vein

Metamorphic Gneiss

Milky quartz

Quartz (silicon dioxide, SiO₂)

Honey calcite (likely rough cleavage fragment)

Calcite, calcium carbonate (CaCO₃)

Milky quartz vein fragment

Quartz (SiO₂), likely massive or vein quartz with minor iron-oxide/clay inclusions

Likely blue-green kyanite

Kyanite, Al₂SiO₅

Banded Gneiss

Gneiss (Metamorphic Rock)

Quartz-bearing rock, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if metamorphosed

Milky quartz

Quartz (silicon dioxide, SiO₂)

Biotite Mica

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

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

White quartz pebble (probable)

Quartz, silicon dioxide (SiO₂)

Gneiss

Metamorphic rock (Gneiss)

Banded Gneiss

Gneiss (Metamorphic Rock)

Iron-stained quartz pebble

Quartz (SiO₂), likely microcrystalline or massive quartz with goethite/limonite staining

Milky quartz pebble

Quartz, silicon dioxide (SiO₂)

Gneiss

Gneiss (Metamorphic Rock)

Small white quartz fragment

Quartz (silicon dioxide, SiO₂)

Small quartz fragment (probable)

Quartz, SiO₂

Garnet Schist

Garnet-bearing Mica Schist