Rock Identifier

Category

Mineral (Specifically A Variety Of Chalcedony, Which Is A Microcrystalline Quartz)

Browse mineral (specifically a variety of chalcedony, which is a microcrystalline quartz) specimens identified by the Rock Identifier community.

Learn about Mineral (Specifically A Variety Of Chalcedony, Which Is A Microcrystalline Quartz) in the encyclopedia

Chalcedony

Blue Chalcedony

Blue Chalcedony

Flower Jasper

Feather Jasper

Red Jasper

Brown Jasper

Prase

Dendritic Jasper

Royal Imperial Jasper

Scenic Jasper

Carrasite Jasper

Map Jasper

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Polished orbicular jasper (likely ocean jasper) (Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper) — mineral

Polished orbicular jasper (likely ocean jasper)

Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper

Chalcedony with Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Chalcedony with Druzy Quartz

Silicon Dioxide (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2 with iron inclusions)

Polished brown jasper (likely orbicular or brecciated jasper) (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other accessory inclusions) — mineral

Polished brown jasper (likely orbicular or brecciated jasper)

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other accessory inclusions

Chalcedony (Chalcedony (a microcrystalline variety of Quartz, SiO2)) — Mineral

Chalcedony

Chalcedony (a microcrystalline variety of Quartz, SiO2)

Yellow Jasper (Silicon dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon dioxide (SiO2)

Tumbled dark reddish-brown stone, possibly red jasper (Jasper, microcrystalline quartz (SiO₂), likely iron-oxide colored) — mineral

Tumbled dark reddish-brown stone, possibly red jasper

Jasper, microcrystalline quartz (SiO₂), likely iron-oxide colored

Jasper (Microcrystalline Quartz (SiO2)) — Sedimentary/Mineral

Jasper

Microcrystalline Quartz (SiO2)

Sedimentary/Mineral

Crazy Lace Agate (Chalcedony (SiO2)) — mineral

Crazy Lace Agate

Chalcedony (SiO2)

Red Jasper (possibly banded) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (possibly banded)

Silicon Dioxide (SiO2) with iron oxide inclusions

Ocean Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — mineral

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Lake Superior Agate (SiO2 (Quartz variety chalcedony)) — gemstone

Lake Superior Agate

SiO2 (Quartz variety chalcedony)

Tumbled chalcedony (likely moss or gray agate) (Microcrystalline quartz, SiO₂; chalcedony/agate variety) — mineral

Tumbled chalcedony (likely moss or gray agate)

Microcrystalline quartz, SiO₂; chalcedony/agate variety

Tumbled brown jasper or chalcedony (Microcrystalline quartz (SiO₂), likely iron-stained jasper/chalcedony) — mineral

Tumbled brown jasper or chalcedony

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

Polished brown jasper (probable ocean jasper or iron-rich jasper) (Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions) — mineral

Polished brown jasper (probable ocean jasper or iron-rich jasper)

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions

Tumbled brown jasper (Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities) — mineral

Tumbled brown jasper

Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

Chalcedony (specifically Agate or Water-worn Quartzite) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (specifically Agate or Water-worn Quartzite)

Silicon Dioxide (SiO2)

Agatized Chert / Chalcedony (Silicon Dioxide (SiO2)) — sedimentary

Agatized Chert / Chalcedony

Silicon Dioxide (SiO2)

Agate (specifically Botswana or Banded Agate variety) (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Agate (specifically Botswana or Banded Agate variety)

Chalcedony (Silicon Dioxide, SiO2)

Jasper (Silicon dioxide (SiO2) with iron impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with iron impurities

Red jasper (tumbled) (Microcrystalline quartz/chalcedony, SiO₂, colored chiefly by iron oxides) — mineral

Red jasper (tumbled)

Microcrystalline quartz/chalcedony, SiO₂, colored chiefly by iron oxides

Polished banded agate (Microcrystalline quartz (SiO₂), chiefly chalcedony) — mineral

Polished banded agate

Microcrystalline quartz (SiO₂), chiefly chalcedony

Banded Agate (Chert/Chaldcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Agate (Chert/Chaldcedony)

Silicon Dioxide (SiO₂)

Tumbled chalcedony or quartz-rich chert (Microcrystalline quartz (SiO₂), likely chalcedony with iron-oxide staining) — mineral

Tumbled chalcedony or quartz-rich chert

Microcrystalline quartz (SiO₂), likely chalcedony with iron-oxide staining

Polished carnelian/chalcedony (Carnelian, a reddish-orange variety of microcrystalline quartz (SiO₂)) — mineral

Polished carnelian/chalcedony

Carnelian, a reddish-orange variety of microcrystalline quartz (SiO₂)

Tumbled carnelian (reddish chalcedony) (Carnelian, a cryptocrystalline variety of quartz (SiO₂)) — gemstone

Tumbled carnelian (reddish chalcedony)

Carnelian, a cryptocrystalline variety of quartz (SiO₂)

Blue Lace Agate (Chalcedony (a form of Quartz) - SiO2) — Mineral

Blue Lace Agate

Chalcedony (a form of Quartz) - SiO2

Polished Jasper (Mushroom Carving) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Polished Jasper (Mushroom Carving)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Banded Agate (specifically Botswana Agate appearance) (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Banded Agate (specifically Botswana Agate appearance)

Silicon Dioxide (SiO2) - variety of Chalcedony

Yellow Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Banded Agate (specifically Sardonyx Agate) (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Banded Agate (specifically Sardonyx Agate)

Silicon Dioxide (SiO2) - Chalcedony variety

Chert (specifically Jasper/Carnelian variety) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (specifically Jasper/Carnelian variety)

Microcrystalline quartz (SiO2)

Flint / Chert Nodules in Limestone (Cryptocrystalline Quartz (SiO2) within Carbonate Rock) — sedimentary

Flint / Chert Nodules in Limestone

Cryptocrystalline Quartz (SiO2) within Carbonate Rock

Tumbled carnelian (likely) (Chalcedony, microcrystalline quartz (SiO₂), colored by iron oxides) — gemstone

Tumbled carnelian (likely)

Chalcedony, microcrystalline quartz (SiO₂), colored by iron oxides

Red Jasper (Silicon Dioxide (SiO2) with hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with hematite inclusions

Tumbled yellow chalcedony (probable) (Chalcedony, microcrystalline quartz (SiO₂), possibly iron-stained jasper) — mineral

Tumbled yellow chalcedony (probable)

Chalcedony, microcrystalline quartz (SiO₂), possibly iron-stained jasper

Chert (White-Tan variety) (Silicon dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (White-Tan variety)

Silicon dioxide (SiO2) / Microcrystalline Quartz

Fancy Jasper (Chalcedony (cryptocrystalline quartz) with inclusions) — Mineral

Fancy Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

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

Jasper

Silicon Dioxide (SiO2) with impurities

Jasper (or possibly Agate/Chalcedony) beads (SiO2 (Silicon Dioxide)) — mineral

Jasper (or possibly Agate/Chalcedony) beads

SiO2 (Silicon Dioxide)

Beach Pebbles and Jasper (Quartz / Microcrystalline Silicon Dioxide (SiO2)) — sedimentary

Beach Pebbles and Jasper

Quartz / Microcrystalline Silicon Dioxide (SiO2)