Rock Identifier

Category

Mineral (Specifically A Cryptocrystalline Variety Of Quartz)

Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.

Learn about Mineral (Specifically A Cryptocrystalline Variety Of Quartz) in the encyclopedia

Smoky Quartz

Lithium Quartz

Dumortierite Quartz

Dumortierite Quartz

Morion Quartz

Rose Quartz

Milky Quartz

Snow Quartz

Garden Quartz

Blue Quartz

Phantom Quartz

Green Quartz

Chalcedony

Polished jasper pebble (Microcrystalline quartz (chalcedony), usually with iron-oxide impurities) — mineral

Polished jasper pebble

Microcrystalline quartz (chalcedony), usually with iron-oxide impurities

Green Aventurine (Aventurine (variety of Quartz - SiO2)) — Mineral_Rock

Green Aventurine

Aventurine (variety of Quartz - SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jadeite (Jadeite (NaAlSi2O6)) — metamorphic

Jadeite

Jadeite (NaAlSi2O6)

Chert (specifically a Lithic Flake) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (specifically a Lithic Flake)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Chevron Amethyst (Quartz (SiO2) with patterned Amethyst and White Quartz/Milky Quartz) — mineral

Chevron Amethyst

Quartz (SiO2) with patterned Amethyst and White Quartz/Milky Quartz

Tumbled pink chalcedony (likely pink agate) (Chalcedony, microcrystalline SiO₂; variety of quartz) — mineral

Tumbled pink chalcedony (likely pink agate)

Chalcedony, microcrystalline SiO₂; variety of quartz

Red Granite (Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)) — igneous

Red Granite

Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)

Carnelian (Carnelian (a variety of Chalcedony, SiO2)) — Mineral

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Tumbled quartz-rich pebble (Microcrystalline quartz/chalcedony, SiO₂ (tentative)) — mineral

Tumbled quartz-rich pebble

Microcrystalline quartz/chalcedony, SiO₂ (tentative)

Sandstone (lithic/greywacke variety) (Arenite (composed primarily of SiO2 with various lithic fragments)) — sedimentary

Sandstone (lithic/greywacke variety)

Arenite (composed primarily of SiO2 with various lithic fragments)

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Polished blue banded agate slice (Chalcedony (microcrystalline quartz), SiO₂, commonly with trace iron and other coloring elements) — mineral

Polished blue banded agate slice

Chalcedony (microcrystalline quartz), SiO₂, commonly with trace iron and other coloring elements

Mixed Quartz Bracelet (Rose Quartz and Larimar-colored beads) (Silicon Dioxide (SiO2) with various inclusions) — mineral

Mixed Quartz Bracelet (Rose Quartz and Larimar-colored beads)

Silicon Dioxide (SiO2) with various inclusions

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Red Jasper (Jasper (a cryptocrystalline variety of Quartz, SiO₂)) — Sedimentary Rock

Red Jasper

Jasper (a cryptocrystalline variety of Quartz, SiO₂)

Sedimentary Rock

Polished jasper pebble (Microcrystalline quartz, SiO₂, with iron-oxide and clay inclusions) — mineral

Polished jasper pebble

Microcrystalline quartz, SiO₂, with iron-oxide and clay inclusions

Chert (specifically Tan/Brown Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Tan/Brown Chert)

Chert (SiO2)

Tumbled carnelian (Carnelian, orange-red chalcedony (microcrystalline SiO₂)) — mineral

Tumbled carnelian

Carnelian, orange-red chalcedony (microcrystalline SiO₂)

Tumbled yellow chalcedony (likely yellow jasper or citrine-colored quartz) (Microcrystalline quartz, SiO₂; coloration may come from iron oxides or fine inclusions) — mineral

Tumbled yellow chalcedony (likely yellow jasper or citrine-colored quartz)

Microcrystalline quartz, SiO₂; coloration may come from iron oxides or fine inclusions

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Polished jasper (likely brecciated or scenic jasper) (Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions) — gemstone

Polished jasper (likely brecciated or scenic jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Agate and Chalcedony Assortment (Silicon Dioxide (SiO2)) — mineral

Agate and Chalcedony Assortment

Silicon Dioxide (SiO2)

Green Aventurine (Quartz (SiO2) with fuchsite inclusions) — mineral

Green Aventurine

Quartz (SiO2) with fuchsite inclusions

Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Chert (specifically a fragment with Desert Varnish) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (specifically a fragment with Desert Varnish)

Microcrystalline quartz (SiO2)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2) with iron oxide impurities

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Conglomerate (Puddingstone) (Conglomerate (specifically, clastic sedimentary rock)) — Sedimentary

Conglomerate (Puddingstone)

Conglomerate (specifically, clastic sedimentary rock)

Agate (Silicon Dioxide (SiO2)) — sedimentary

Agate

Silicon Dioxide (SiO2)

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

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Red jasper (Microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Red jasper

Microcrystalline quartz (SiO₂), colored mainly by iron oxides

Tumbled blue-green stone, likely dyed agate (Agate (microcrystalline quartz, SiO₂); blue coloration may be artificial) — mineral

Tumbled blue-green stone, likely dyed agate

Agate (microcrystalline quartz, SiO₂); blue coloration may be artificial

Chert (specifically a nodule with Chalcendony/Agate banding) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically a nodule with Chalcendony/Agate banding)

Microcrystalline Quartz (SiO2)

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

Blue Lace Agate (Silicon Dioxide (SiO₂), a variety of Chalcedony) — mineral

Blue Lace Agate

Silicon Dioxide (SiO₂), a variety of Chalcedony

Jasper (Silicon Dioxide (Quartz variety, SiO2)) — mineral

Jasper

Silicon Dioxide (Quartz variety, SiO2)

Polished jasper (likely brecciated or orbicular jasper) (Jasper, microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and other mineral inclusions) — mineral

Polished jasper (likely brecciated or orbicular jasper)

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