Rock Identifier

Category

Sedimentary (Microcrystalline Quartz)

Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.

Yellow Quartz (Citrine or Yellow Jasper) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Yellow Jasper)

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (Milky/Common) (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz (Milky/Common)

Quartz (Silicon Dioxide, SiO2)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (SiO₂ (Silicon Dioxide)) — Mineral

Quartz

SiO₂ (Silicon Dioxide)

Mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Mudstone (Lutylite (group of fine-grained sedimentary rocks)) — sedimentary

Mudstone

Lutylite (group of fine-grained sedimentary rocks)

sedimentary
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Vesicular Basalt with Quartz/Chalcedony (Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)) — igneous

Vesicular Basalt with Quartz/Chalcedony

Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)

igneous
Quartz (Peach/Orange variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Peach/Orange variety)

Silicon Dioxide (SiO2)

mineral
Carnelian Agate (Carnelian (Silicon Dioxide, SiO2)) — mineral

Carnelian Agate

Carnelian (Silicon Dioxide, SiO2)

mineral
Dyed Blue Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Dyed Blue Agate

Cryptocrystalline Quartz (SiO2)

mineral
Yellow Quartzite (River Pebble) (Crystalline Quartz (SiO2)) — metamorphic

Yellow Quartzite (River Pebble)

Crystalline Quartz (SiO2)

metamorphic
Quartzite River Stone (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Stone

Quartzite (primarily SiO2)

metamorphic
Quartz (likely milky quartz or a stained variety) (Silicon Dioxide (SiO₂)) — Mineral

Quartz (likely milky quartz or a stained variety)

Silicon Dioxide (SiO₂)

Mineral
Quartz / Quartzite (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartz / Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

metamorphic
Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

metamorphic
Quartz Geode with Calcite (Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)) — Mineral/Geode

Quartz Geode with Calcite

Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)

Mineral/Geode
Native Gold (Native Gold (Au)) — mineral

Native Gold

Native Gold (Au)

mineral
Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

metamorphic
Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

mineral
Yellow Aventurine (or Citrine-colored Quartz) (Silicon Dioxide (SiO2) with inclusions) — metamorphic

Yellow Aventurine (or Citrine-colored Quartz)

Silicon Dioxide (SiO2) with inclusions

metamorphic
Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

mineral
Clear Quartz Fragment (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz Fragment

Quartz (Silicon Dioxide, SiO2)

mineral
Milky Quartz (or Vein Quartz) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (or Vein Quartz)

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Red Jasper (Silicon Dioxide (SiO2) with Ferric Iron inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Ferric Iron inclusions

sedimentary
Carnelian (Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)) — mineral

Carnelian

Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

metamorphic
Orbicular Rhyolite (Rainforest Jasper) (Rhyolite containing Spherulites (SiO2 with impurities)) — igneous

Orbicular Rhyolite (Rainforest Jasper)

Rhyolite containing Spherulites (SiO2 with impurities)

igneous
Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions) — Mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Mineral
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Yellow Aventurine (Yellow Quartzite) (Silicon Dioxide (SiO2) with inclusions) — metamorphic

Yellow Aventurine (Yellow Quartzite)

Silicon Dioxide (SiO2) with inclusions

metamorphic
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (likely tumbled or naturally water-worn) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely tumbled or naturally water-worn)

Quartz (SiO₂ - Silicon Dioxide)

Mineral