Rock Identifier

Category

Mineral (Cryptocrystalline Quartz)

Browse mineral (cryptocrystalline quartz) specimens identified by the Rock Identifier community.

Learn about Mineral (Cryptocrystalline Quartz) in the encyclopedia

Lithium Quartz

Dumortierite Quartz

Dumortierite Quartz

Garden Quartz

Blue Quartz

Phantom Quartz

Chalcedony

Black Onyx

Super Seven

Aventurine

Landscape Agate

Landscape Agate

Tube Agate

Prase

Agate (Slab) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — Mineral

Agate (Slab)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Agate (Moss or Lake Superior type) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Agate (Moss or Lake Superior type)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Carnelian (Carnelian (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Carnelian

Carnelian (Cryptocrystalline variety of Quartz, SiO2)

Dyed Purple Agate (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Dyed Purple Agate

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Black Onyx (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Black Onyx

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Banded Agate (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Banded Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Agate (Silicon Dioxide / Cryptocrystalline Quartz (SiO2)) — mineral

Agate

Silicon Dioxide / Cryptocrystalline Quartz (SiO2)

Banded Agate (Pink Chalcedony) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (Pink Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Agate (specifically a Blue Agate Geode Slice) (Chalcedony (cryptocrystalline variety of Quartz); SiO2) — mineral

Agate (specifically a Blue Agate Geode Slice)

Chalcedony (cryptocrystalline variety of Quartz); SiO2

Blue Chalcedony (Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)) — Mineral

Blue Chalcedony

Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)

Blue Dyed Agate (Chalcedony (cryptocrystalline variety of Quartz), SiO2) — mineral

Blue Dyed Agate

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Banded Agate (specifically Sardonyx or Carnelian Agate) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (specifically Sardonyx or Carnelian Agate)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Blue Lace Agate (Chalcedony (cryptocrystalline variety of Quartz), SiO2) — mineral

Blue Lace Agate

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Agate (Agate (Cryptocrystalline Variety of Quartz, SiO2)) — Mineral

Agate

Agate (Cryptocrystalline Variety of Quartz, SiO2)

Banded Agate (specifically Eye Agate / Chalcedony) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Banded Agate (specifically Eye Agate / Chalcedony)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Banded Agate (specifically Moss Agate or Plume Agate variety) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (specifically Moss Agate or Plume Agate variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Blue Lace Agate (Chalcedony (cryptocrystalline variety of Quartz), SiO2) — mineral

Blue Lace Agate

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Banded Agate (specifically Red Agate or Sardonyx variety) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (specifically Red Agate or Sardonyx variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Banded Chalcedony (Agate) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Chalcedony (Agate)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Agate (Agate (a cryptocrystalline variety of Quartz, SiO₂)) — Mineral

Agate

Agate (a cryptocrystalline variety of Quartz, SiO₂)

Banded Agate (Lace Agate) (Agate (Variety of Cryptocrystalline Quartz), SiO2) — mineral

Banded Agate (Lace Agate)

Agate (Variety of Cryptocrystalline Quartz), SiO2

Polished striped jasper pebble (Jasper, microcrystalline quartz (SiO₂) with iron-oxide and clay inclusions) — sedimentary

Polished striped jasper pebble

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

Polished green moss agate cabochon (Moss agate: microcrystalline quartz (SiO₂) with included chlorite/actinolite or iron-manganese minerals) — mineral

Polished green moss agate cabochon

Moss agate: microcrystalline quartz (SiO₂) with included chlorite/actinolite or iron-manganese minerals

Leopard Skin Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with impurities

Polished leopard-skin jasper (Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and other mineral impurities) — sedimentary

Polished leopard-skin jasper

Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and other mineral impurities

Jasper Pendant (Chalcedony (Quartz) - SiO2) — Mineral/Sedimentary

Jasper Pendant

Chalcedony (Quartz) - SiO2

Mineral/Sedimentary

Green Jasper / Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper / Chert

Microcrystalline Quartz (SiO2)

Banded Agate (Polished Slice) (Chalcedony (SiO2) with Quartz) — mineral

Banded Agate (Polished Slice)

Chalcedony (SiO2) with Quartz

Chalcedony (likely common gray chalcedony) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (likely common gray chalcedony)

Microcrystalline quartz, SiO₂

Chalcedony (Common Opal variant or Agate pebble) (Silicon dioxide (SiO2)) — mineral

Chalcedony (Common Opal variant or Agate pebble)

Silicon dioxide (SiO2)

Orbicular Jasper (Ocean Jasper or Poppy Jasper variant) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

Orbicular Jasper (Ocean Jasper or Poppy Jasper variant)

Silicon Dioxide (SiO2) with various inclusions

Banded Agate (Cryptocrystalline Silica (SiO2)) — mineral

Banded Agate

Cryptocrystalline Silica (SiO2)

Chert Concretion (Microcrystalline Quartz (SiO2) in Carbonate Matrix) — sedimentary

Chert Concretion

Microcrystalline Quartz (SiO2) in Carbonate Matrix

Agate (SiO2 (Silicon Dioxide - Chalcedony)) — Mineral / Sedimentary

Agate

SiO2 (Silicon Dioxide - Chalcedony)

Mineral / Sedimentary

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Chert (Green variety) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Green variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Yellow Jasper (Chalcedony (SiO2 with iron oxide inclusions)) — mineral

Yellow Jasper

Chalcedony (SiO2 with iron oxide inclusions)

Banded agate geode fragment (Cryptocrystalline quartz (chalcedony), SiO₂, with an inner botryoidal or drusy quartz cavity) — mineral

Banded agate geode fragment

Cryptocrystalline quartz (chalcedony), SiO₂, with an inner botryoidal or drusy quartz cavity

Polished multicolored jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), likely iron- and manganese-stained chert) — mineral

Polished multicolored jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), likely iron- and manganese-stained chert

Polished red jasper (likely brecciated jasper) (Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Polished red jasper (likely brecciated jasper)

Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides

Tumbled orange jasper or iron-rich chert (Microcrystalline quartz (SiO₂), colored by iron oxides) — mineral

Tumbled orange jasper or iron-rich chert

Microcrystalline quartz (SiO₂), colored by iron oxides

Tumbled chalcedony (likely carnelian/opaque agate) (Microcrystalline quartz, SiO₂; chalcedony with iron-oxide staining) — mineral

Tumbled chalcedony (likely carnelian/opaque agate)

Microcrystalline quartz, SiO₂; chalcedony with iron-oxide staining