Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)

Conglomeratic or porphyritic basalt cobble

Likely vesicular basalt with weathered feldspar/mafic inclusions; exact identification requires testing

Conglomerate

Conglomerate Sedimentary Rock

Polymict conglomerate

Clastic conglomerate, likely polymictic and matrix-supported

Conglomerate

Conglomerate (Sedimentary Rock)

Polished breccia-like rock specimen

Likely polymictic breccia or brecciated jasper, with quartz-rich fragments

Quartz-rich rock fragment

Likely milky quartz with feldspar and possible mica; exact rock type is indeterminate from the image

Iron-stained quartz-rich breccia (likely weathered vein rock)

Quartz-rich hydrothermal breccia with limonite/goethite; possibly iron-bearing jasper or silicified volcanic rock

Quartz-rich iron-stained rock

Massive to drusy quartz (SiO₂) with iron-oxide coatings, likely limonite/goethite

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerative Sedimentary Rock

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

Quartz (SiO₂)-dominant rock with iron-oxide minerals, chiefly hematite/goethite

Conglomerate

Conglomerate (Sedimentary Clastic Rock)

Quartz-veined Sandstone Pebble

Quartzite-veined Arenite

Breciated Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Conglomerate (Quartz Pebble Conglomerate)

Quartz Pebble Conglomerate

Weathered quartz-bearing rock, possibly calcite vein fragment

Indeterminate; likely quartz (SiO₂) with carbonate minerals such as calcite (CaCO₃)

Iron-stained quartz vein rock

Quartz-rich vein material, predominantly SiO₂, with iron oxyhydroxides (goethite/limonite) and likely sulfide alteration

Porphyritic volcanic rock, likely andesite or rhyolite

Porphyritic andesite–rhyolite; chiefly plagioclase, quartz, and altered ferromagnesian minerals in a fine groundmass

Veined Pebble (Quartz/Calcite Veined Metamorphic/Sedimentary Rock)

Quartz / Calcite Veined Fault Breccia or Metamorphic Pebble

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Weathered polymictic rock fragment, likely granite-rich conglomerate

Indeterminate mixed lithology; apparent granitic clasts containing quartz, feldspar, and dark mafic minerals

Conglomerate

Clastic sedimentary rock (Conglomerate)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Clastic sedimentary rock)

Milky quartz vein in altered host rock

Quartz (SiO₂), likely with feldspar, mica, and iron-oxide alteration

Chalcedony Nodule in Matrix

Silicon Dioxide (SiO2)

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Quartz-rich breccia or vein quartz with dark inclusions

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

Conglomerate

Clastic sedimentary rock (Conglomerate)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Clastic sedimentary rock)

Quartz-veined breccia

Hydrothermal quartz–carbonate breccia; chiefly SiO₂ quartz with calcite/dolomite and altered host rock

Conglomerate with Quartz Inclusions

Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)