Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
Kambaba Jasper (Crocodile Jasper)
Stromatolitic Rhyolite/Jasper (SiO2)
Red Jasper
SiO2 (Microcrystalline Quartz)
Chalcedony (Pancawarna / Bacan / Red Chalcedony Agate Ring)
Silicon dioxide (SiO2)
Gneiss Pebble
Gneiss
Blue Chalcedony (Moonstone-like / Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Sandstone Pebble
Quartzose Sandstone (Sedimentary Rock)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Quartz (Smoky Quartz / Calcite)
SiO2 (Silicon Dioxide)
Milky Quartz
Silicon Dioxide (SiO2)
Turtleback Rock (Brecciated Diabase / Granite)
Brecciated hypabyssal intrusive rock
Quartz (Pink / Rose Quartz variant)
Silicon Dioxide (SiO2)
Quartzite / Iron-stained Chert
Silicon Dioxide (SiO2) with Iron Oxide impurities
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Dalmatian Jasper
Dalmatian Stone (Aplite with Arfvedsonite)
Yellow Quartz
Silicon Dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Dragon Blood Jasper
SiO2
Herkimer Diamond (Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky / Massive Quartz)
Silicon Dioxide (SiO2)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Chalcedony
Silicon Dioxide (SiO2)
Cinnabar on Matrix with Quartz
Mercury(II) sulfide (HgS) on Quartz (SiO2) and Basalt/Siltstone matrix
Chert (Flint)
Microcrystalline Quartz (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
Chert (or potentially Jasper/Chalcedony)
SiO2 (Silicon Dioxide)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Chert Nodule in Limestone
Microcrystalline Quartz (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Copper-bearing Basalt with Epidote and Quartz
Native copper in basalt amygdaloidal matrix
Jasper or Chalcedony
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rock Crystal Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Druzy Quartz
Silicon Dioxide (SiO2)
Septarian Nodule (Dragon Stone)
Septarian Concretion (CaCO3 with Calcite, Aragonite, and Limestone/Bentonite)
Red Siltstone (or Red Shale)
Clastic Sedimentary Rock (Composition: primarily Quartz, Clay minerals, and Hematite Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)