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

Unidentified brown rock fragment

Indeterminate from image; likely a weathered iron-rich lithic fragment

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Weathered quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂), likely with iron-oxide staining and minor host minerals

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Conglomerate

Conglomerate (clastic sedimentary rock)

Polished tiger’s-eye / iron-rich jasper

Quartz-rich chalcedony with crocidolite pseudomorphs and iron oxides; possibly brecciated jasper

Rounded brown-gray stone, possibly weathered conglomerate or sandstone

Indeterminate clastic sedimentary rock; likely poorly cemented sandstone/conglomerate

Quartz-bearing metamorphic rock, likely quartzite or hornfels

Quartz (SiO₂) in a fine-grained silicate matrix; exact rock identification requires testing

Conglomerate

Conglomerate (Detrital Sedimentary Rock)

Conglomerate

Clastic sedimentary rock (Conglomerate)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Detrital sedimentary rock)

Conglomerate

Conglomerate (Detrital sedimentary rock)

Quartz-rich breccia or altered granite fragment

Polymineralic quartz–feldspar rock, likely hydrothermally altered granite/pegmatite

Conglomerate

Conglomerate (Clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Clastic sedimentary rock)

Conglomerate

Conglomerate (clastic sedimentary rock)

Brecciated Jasper

Silicon Dioxide (SiO2) with iron impurities

Milky quartz-rich rock

Quartz, SiO₂; possibly quartzite or massive vein quartz

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Clastic sedimentary rock)

Conglomerate

Conglomerate (Sedimentary rock, clastic)

Red jasper

Microcrystalline quartz (chalcedony), SiO₂, colored mainly by iron oxides

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate

Conglomerate (Sedimentary Clastic Rock)

Quartz-rich weathered rock, possibly quartz geode or vuggy quartz vein

Quartz (SiO₂), likely with iron-oxide staining and possible feldspar/calcite matrix

Quartz-rich rock, likely milky quartz or quartzite

Quartz (SiO₂), possibly quartzite (recrystallized quartz sandstone)

Quartz-rich breccia or vein quartz with iron staining

Microcrystalline to crystalline SiO₂, likely quartz with iron oxides/hydroxides and altered host rock

Quartz–iron-oxide breccia or weathered quartz-bearing rock

Quartz (SiO₂) with limonite/goethite and possibly iron sulfides in a brecciated host

Breccia (likely volcanic or impact breccia)

Polymictic breccia; clasts in a fine-grained silicate matrix, exact mineralogy indeterminate from image

Polished brecciated jasper

Jasper, microcrystalline quartz (SiO₂), with iron-oxide and other mineral inclusions

Iron-stained quartz-rich breccia

Silicified, limonite/goethite-stained breccia; chiefly SiO₂ (quartz) with FeO(OH)·nH₂O iron oxides

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Hydrothermal Quartz Breccia

Hydrothermal Breccia with Quartz and Chloritic/Epidote Clasts

Quartz-rich breccia or iron-stained quartz vein

Microcrystalline and crystalline quartz (SiO₂) with iron-oxide minerals, possibly limonite/goethite and sulfides

Conglomeratic aggregate / pebble-rich concrete-like rock

Polymictic conglomerate (likely glacial or beach-derived gravel matrix); exact identification uncertain from image

Iron-stained quartz rock

Quartz (SiO₂), likely ferruginous quartz or quartz-rich breccia