Rock Identifier

Category

Sedimentary Rock (Cryptocrystalline Quartz)

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

Learn about Sedimentary Rock (Cryptocrystalline Quartz) in the encyclopedia

Quartz Schist

Clear Quartz

Tourmalinated Quartz

Tourmalinated Quartz

Rutilated Quartz

Rutilated Quartz

Rock Gypsum

Quartz Arenite

Milky Quartz

Smoky Quartz

Scepter Quartz

Spirit Quartz

Lemon Quartz

Tangerine Quartz

Tangerine Quartz

Crazy Lace Agate (Silicon Dioxide (SiO2) with iron and aluminum inclusions) — sedimentary

Crazy Lace Agate

Silicon Dioxide (SiO2) with iron and aluminum inclusions

Tumbled Mixed Gemstones and Rocks (Various mineral species including quartz (SiO2) and silicate minerals) — mineral

Tumbled Mixed Gemstones and Rocks

Various mineral species including quartz (SiO2) and silicate minerals

Petrified Wood (Silicified wood (primarily quartz, SiO2)) — fossil

Petrified Wood

Silicified wood (primarily quartz, SiO2)

Agate (Chalcedony) (Cryptocrystalline Silica or Silicon Dioxide (SiO2)) — mineral

Agate (Chalcedony)

Cryptocrystalline Silica or Silicon Dioxide (SiO2)

Tumbled jasper or weathered chert (Microcrystalline quartz (SiO₂), likely jasper/chert with iron-oxide impurities) — mineral

Tumbled jasper or weathered chert

Microcrystalline quartz (SiO₂), likely jasper/chert with iron-oxide impurities

Jasper with Quartz Veining (Microcrystalline quartz (SiO2) with iron oxide impurities) — sedimentary

Jasper with Quartz Veining

Microcrystalline quartz (SiO2) with iron oxide impurities

Mookaite Jasper (SiO2) — Sedimentary

Mookaite Jasper

SiO2

Tumbled jasper (Microcrystalline quartz (SiO₂), commonly with hematite/goethite and other iron oxides) — metamorphic

Tumbled jasper

Microcrystalline quartz (SiO₂), commonly with hematite/goethite and other iron oxides

Jasper and Quartz conglomerate (River Rock) (Silicon Dioxide (SiO2) - Chalcedony and Quartz variety) — sedimentary

Jasper and Quartz conglomerate (River Rock)

Silicon Dioxide (SiO2) - Chalcedony and Quartz variety

Poppy Jasper (Microcrystalline Quartz (SiO2) with hematite and other inclusions) — sedimentary

Poppy Jasper

Microcrystalline Quartz (SiO2) with hematite and other inclusions

Tumbled amber-colored agate or chalcedony (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/agate) — mineral

Tumbled amber-colored agate or chalcedony

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/agate

Chert (Yellow Jasper variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Yellow Jasper variant)

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Chert (Iron-stained) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Agate (Agate (Microcrystalline Quartz, SiO2)) — mineral

Agate

Agate (Microcrystalline Quartz, SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Chert (Quartz Variety) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Quartz Variety)

Chert (Silicon Dioxide, SiO2)

Stromatolite (Biogenic sedimentary rock) — sedimentary

Stromatolite

Biogenic sedimentary rock

Bloodstone (Heliotrope (cryptocrystalline Quartz, SiO2 with inclusions of Hematite)) — sedimentary

Bloodstone

Heliotrope (cryptocrystalline Quartz, SiO2 with inclusions of Hematite)

Leopard Skin Jasper (SiO2 (Microcrystalline Quartz with inclusions)) — mineral

Leopard Skin Jasper

SiO2 (Microcrystalline Quartz with inclusions)

Chert (River Pebble) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (River Pebble)

Microcrystalline quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Moss Agate Sphere (Silicon Dioxide (SiO2) with inclusions) — mineral

Moss Agate Sphere

Silicon Dioxide (SiO2) with inclusions

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Likely weathered chert or siliceous shale (Cryptocrystalline quartz (SiO₂), possibly with clay minerals) — sedimentary

Likely weathered chert or siliceous shale

Cryptocrystalline quartz (SiO₂), possibly with clay minerals

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

River Pebbles and Quartz (Mixed Igneous, Sedimentary, and Metamorphic Rocks (Silicon Dioxide SiO2 dominant)) — mixed

River Pebbles and Quartz

Mixed Igneous, Sedimentary, and Metamorphic Rocks (Silicon Dioxide SiO2 dominant)

River Rocks and Pebbles (Mixed Silica-rich Sediments (SiO2 based)) — sedimentary

River Rocks and Pebbles

Mixed Silica-rich Sediments (SiO2 based)

Chalcedony (Agate/Chert variety) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with Goethite or Limonite inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite or Limonite inclusions

Fairburn Agate (Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz) — sedimentary

Fairburn Agate

Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz

Chert (with Epidote/Quartz veining) (Cryptocrystalline silica (SiO2) with Epidote/Quartz inclusions) — sedimentary

Chert (with Epidote/Quartz veining)

Cryptocrystalline silica (SiO2) with Epidote/Quartz inclusions

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

Likely weathered gray stone or chert fragment (Uncertain; possibly microcrystalline quartz (SiO₂)-rich chert) — sedimentary

Likely weathered gray stone or chert fragment

Uncertain; possibly microcrystalline quartz (SiO₂)-rich chert

Jasper and Quartzite mix (Silicon Dioxide (SiO2) with impurities) — sedimentary or metamorphic

Jasper and Quartzite mix

Silicon Dioxide (SiO2) with impurities

sedimentary or metamorphic

River Jasper (Chert/Chalcedony mix) (Silicon Dioxide (SiO2) with iron oxide and chlorite inclusions) — sedimentary

River Jasper (Chert/Chalcedony mix)

Silicon Dioxide (SiO2) with iron oxide and chlorite inclusions

Polished yellow jasper (Jasper, microcrystalline quartz (SiO₂), commonly containing iron oxides and other silicates) — mineral

Polished yellow jasper

Jasper, microcrystalline quartz (SiO₂), commonly containing iron oxides and other silicates

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (primarily SiO2 - Silicon Dioxide)) — mineral

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide)

Yellow Agate (Banded Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Agate (Banded Chalcedony)

Silicon Dioxide (SiO2)

Chert (Jasper/Agate variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Silicon Dioxide (SiO2)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)