Metamorphic, Likely Sedimentary With Quartz Veins

Tumbled milky quartz

Quartz, silicon dioxide (SiO₂)

Quartz-rich breccia or iron-stained quartzite

Silica-rich rock dominated by quartz (SiO₂), with minor iron oxides and possible feldspar

Quartz / Iron-Stained Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions/staining

Milky quartz

Quartz (SiO₂), massive variety

Clear quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or included rock crystal

Weathered gray sandstone or fine-grained metamorphic rock

Likely quartz-rich sandstone (quartz arenite), possibly weakly metamorphosed metasandstone

Quartz-rich breccia or silicified rock

Microcrystalline quartz (SiO₂) with iron-oxide staining and darker host-rock fragments

Quartz-rich pebble (likely milky quartz)

Quartz, silicon dioxide (SiO₂), possibly a weathered quartzite fragment

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Unidentified small rock fragment

Likely quartz-rich material; exact identification is indeterminate from the image

Milky quartz with dark host-rock inclusions

Quartz (SiO₂), likely in a granitic or metamorphic matrix

Beaded Jewelry (Assorted Gemstones)

Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ

Slate

Slate; fine-grained metamorphosed shale, commonly quartz–illite/chlorite rich

Quartz vein in host rock

Milky quartz (SiO₂) with likely metamorphic country rock, possibly gneiss or schist

Likely quartz pebble or quartz fragment

Quartz, SiO₂ (identification from the photo is tentative)

Milky quartz pebble

Quartz, silicon dioxide (SiO₂)

Weathered quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂); likely quartzite if the grains are recrystallized and fused

Quartz vein fragment (likely quartz with dark host rock)

Quartz (SiO₂) in an unidentified fine-grained host rock

Quartz Vein in Host Rock

Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)

Milky quartz

Quartz, silicon dioxide (SiO₂)

Likely quartz-rich stone, possibly quartzite or milky quartz

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

Quartz-rich pale rock fragment

Likely milky quartz (SiO₂), possibly quartzite

Tumbled milky quartz (likely quartz pebble)

Quartz, silicon dioxide (SiO₂)

Quartz, Sandstone, and Siltstone specimens

Silicon Dioxide (SiO2) and Clastic Sedimentary Rocks

Mixed small mineral specimens, likely quartz varieties

Uncertain from the image; translucent pieces may be quartz (SiO₂), while golden-brown pieces could be iron-stained quartz or calcite

Rounded quartz-rich pebble, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if recrystallized rock

Mica-rich schist (likely quartz-mica schist)

Quartz–mica schist, commonly containing muscovite and/or biotite with quartz and feldspar

Quartz with Inclusions

Silicon Dioxide (SiO2)

Quartz-rich rock fragment (tentative)

Quartz, silicon dioxide (SiO₂), possibly in a weathered host rock

Quartz vein rock with iron-oxide staining

Milky quartz (SiO₂), locally stained by hematite/goethite; possible feldspar or host-rock fragments

Quartz Crystal

Silicon Dioxide (SiO2)

Banded gneiss

Quartz–feldspar gneiss, possibly biotite-bearing; exact identification requires testing

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

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

Likely garnet-bearing mica schist

Mica schist, possibly containing garnet (garnet–mica schist)

Weathered schist or foliated metamorphic rock

Mica schist, possibly phyllite; exact identification requires a fresh surface and testing

Rounded quartz-rich pebble, likely milky quartz with iron-oxide inclusions

Quartz (SiO₂), possibly with minor chlorite or iron/manganese oxides

Shale with Quartz Veins

Fissile Sedimentary Rock (SiO2)

Quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if the grainy texture is rock-wide

Milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Quartz-rich rock, likely milky quartz or quartzite

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

Milky quartz-rich rock

Quartz (SiO₂), likely massive quartz in a quartz vein or quartzite

Tumbled honey calcite (likely)

Calcite, calcium carbonate (CaCO₃)