Metamorphic, Likely Sedimentary With Quartz Veins

Quartz Pebble (Tumbled / Beach Pebble)

Silicon Dioxide (SiO2)

Tumbled blue stone, possibly sodalite or blue quartz

Indeterminate from the photograph; possibilities include sodalite (Na₈Al₆Si₆O₂₄Cl₂) or blue quartz (SiO₂)

Quartz (Pink / Rose Quartz variant)

Silicon Dioxide (SiO2)

Quartz Vein in Pelite (Metamorphic Rock)

Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)

White quartz-rich pebble

Quartz (SiO₂), possibly milky quartz or quartzite

Pale rounded quartz-rich pebble, likely quartzite

Quartzite (mostly microcrystalline SiO₂), possibly quartz-rich sandstone or vein quartz

Green faceted gemstone pendant, likely green quartz

Quartz (SiO₂), possibly prasiolite or green-treated quartz

Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz-Veined Slate or Greenstone

Metamorphic rock with quartz vein (SiO2)

Likely rough quartz crystal

Quartz (silicon dioxide, SiO₂)

Beryl (likely Aquamarine or Heliodor variant)

Beryllium aluminum silicate (Be3Al2Si6O18)

Likely clear quartz pebble or glassy quartz fragment

Quartz (silicon dioxide, SiO₂)

Likely milky quartz fragment

Quartz (silicon dioxide, SiO₂)

Quartz-rich rock, likely milky quartz or quartzite

Quartz (SiO₂); possibly quartzite with iron-oxide staining

Rounded quartz-rich pebble

Quartz (SiO₂), possibly milky quartz or quartzite

Small tumbled quartz pebble

Quartz (silicon dioxide, SiO₂), possibly iron-stained milky quartz

Milky quartz

Quartz (SiO₂), commonly massive or vein quartz

Quartz-rich pegmatitic rock, possibly quartzite or milky quartz with iron staining

Predominantly quartz (SiO₂), with probable feldspar and iron-oxide staining; exact classification is uncertain from the photograph

Gold-bearing sulfide ore (tentative)

Native gold, likely with pyrite/chalcopyrite in quartz or altered rock

Weathered quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if metamorphic

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky quartz

Quartz (SiO₂), commonly called milky quartz

White quartz-rich pebble

Likely quartzite or milky-quartz pebble (SiO₂)

Rounded quartz-rich pebble, possibly milky quartz or quartzite

Quartz (SiO₂), or quartzite if the grainy texture is confirmed

Milky quartz vein rock

Quartz, SiO₂; likely massive quartz with minor iron-oxide and host-rock material

Weathered quartz-rich rock, possibly quartzite or vein quartz

Quartz-dominant aggregate; chiefly silicon dioxide (SiO₂), possibly quartzite with iron-oxide staining

Banded metamorphic rock, likely gneiss or metasedimentary slate

Quartz–feldspar–mica gneiss (tentative), possibly containing iron-oxide veins

Quartz

Silicon dioxide (SiO2)

Quartz

SiO2 (Silicon Dioxide)

Yellow Quartz (Citrine Quartz / Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Iron-stained milky quartz pebble

Quartz (SiO₂), commonly with iron-oxide staining

Iron-stained quartz-rich rock, likely quartzite or silicified breccia

Quartz (SiO₂), possibly quartzite with limonite/goethite iron oxides

Basalt with Quartz Vein

Basalt (extrusive igneous rock with SiO2 vein inclusion)

Quartz pebble (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Milky quartz with iron-oxide staining and matrix

Quartz, silicon dioxide (SiO₂), likely massive quartz

Iron-stained quartz-rich rock, possibly quartzite or quartz vein

Quartz (SiO₂), likely with iron-oxide minerals such as limonite/goethite; exact host rock is uncertain from the photo

Milky quartz

Quartz (SiO₂), likely massive or drusy quartz

Quartz vein with iron staining and dark sulfide/oxide minerals

Quartz (SiO₂), with probable iron oxides and unidentified dark sulfides

Honey calcite (likely rough cleavage fragment)

Calcite, calcium carbonate (CaCO₃)