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.

Jasper (Green Jasper / Bloodstone variant base) (Silicon Dioxide (SiO2) with impurities of chlorite and iron oxides) — sedimentary

Jasper (Green Jasper / Bloodstone variant base)

Silicon Dioxide (SiO2) with impurities of chlorite and iron oxides

Quartz Geode (partially formed/chalcedony with iron staining) (Quartz (SiO2) with Chalcedony (cryptocrystalline quartz) and likely Iron Oxides/Hydroxides) — Mineral/Sedimentary Rock Feature

Quartz Geode (partially formed/chalcedony with iron staining)

Quartz (SiO2) with Chalcedony (cryptocrystalline quartz) and likely Iron Oxides/Hydroxides

Mineral/Sedimentary Rock Feature

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

Agate (or Chalcedony)

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

Carnelian (Chalcedony (cryptocrystalline quartz), SiO2) — Mineral

Carnelian

Chalcedony (cryptocrystalline quartz), SiO2

Chert (Chert Nodule in Limestone) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Chert Nodule in Limestone)

Microcrystalline Quartz (SiO2)

Fancy Jasper (Silicon Dioxide (SiO₂)) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO₂)

Yellow Quartz (Chalcedony/Agate) (Silicon Dioxide (SiO2)) — Mineral

Yellow Quartz (Chalcedony/Agate)

Silicon Dioxide (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Citrine (Quartz (SiO2) - specifically, a variety of macrocrystalline quartz) — mineral

Citrine

Quartz (SiO2) - specifically, a variety of macrocrystalline quartz

Jasper Agate (specifically Brecciated Jasper with Agate inclusions) (Silicon Dioxide (SiO2)) — mineral

Jasper Agate (specifically Brecciated Jasper with Agate inclusions)

Silicon Dioxide (SiO2)

Leopard Skin Jasper (Chalcedony (cryptocrystalline quartz) with inclusions) — Mineral

Leopard Skin Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Moss Agate

Silicon Dioxide (SiO2) with inclusions

Lace Agate (specifically Red Lace Agate) (Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz) — Mineral

Lace Agate (specifically Red Lace Agate)

Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz

Rose Quartz (Quartz (SiO₂), specifically a variety of Quartz) — Mineral

Rose Quartz

Quartz (SiO₂), specifically a variety of Quartz

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Red Jasper (Brecciated or Mottled) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (Brecciated or Mottled)

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (specifically Red Jasper or Iron-stained Chert) (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (specifically Red Jasper or Iron-stained Chert)

Silicon dioxide (SiO2) with iron oxide inclusions

Red Jasper (Chert) (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (Chert)

Silicon dioxide (SiO2) with iron oxide inclusions

Chalcedony (specifically Agate or Carnelian pebble) (Chalcedony (Microcrystalline Quartz, SiO2)) — mineral

Chalcedony (specifically Agate or Carnelian pebble)

Chalcedony (Microcrystalline Quartz, SiO2)

Moss Agate (Moss Agate (a variety of Chalcedony, SiO

₂)) — Mineral (specifically a variety of Chalcedony, which is microcrystalline Quartz)

Moss Agate

Moss Agate (a variety of Chalcedony, SiO ₂)

Mineral (specifically a variety of Chalcedony, which is microcrystalline Quartz)

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Agatized/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Agatized/Chalcedony variety)

Microcrystalline Quartz (SiO2)

Ocean Jasper (Spherulitic Chalcedony (SiO2)) — mineral

Ocean Jasper

Spherulitic Chalcedony (SiO2)

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

Yellow Jasper

Silicon Dioxide (SiO2) with Iron inclusions

Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads) (Chalcedony (SiO2), Jasper (SiO2 with impurities)) — Mineral (specifically a cryptocrystalline variety of Quartz)

Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads)

Chalcedony (SiO2), Jasper (SiO2 with impurities)

Mineral (specifically a cryptocrystalline variety of Quartz)

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

Jasper (specifically Red or Brecciated Jasper variant) (Jasper (Microcrystalline Quartz - SiO2)) — sedimentary

Jasper (specifically Red or Brecciated Jasper variant)

Jasper (Microcrystalline Quartz - SiO2)

Agate (specifically, likely a geode slice or nodule) (Agate (a variety of Chalcedony, with chemical formula SiO2)) — Mineral

Agate (specifically, likely a geode slice or nodule)

Agate (a variety of Chalcedony, with chemical formula SiO2)

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Carnelian (Carnelian (a variety of Chalcedony, SiO

₂)) — Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)

Carnelian

Carnelian (a variety of Chalcedony, SiO ₂)

Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)

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

Jasper

Silicon dioxide (SiO2) with iron impurities

Carnelian Agate (Silicon Dioxide (SiO2) with Iron Impurities) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with Iron Impurities

Chert (Pink/Red variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Pink/Red variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Tree Agate (or Moss Agate), faceted into a crystal tower (Dendritic Agate (Silicon Dioxide, SiO2)) — Mineral

Tree Agate (or Moss Agate), faceted into a crystal tower

Dendritic Agate (Silicon Dioxide, SiO2)

Agate (Carnelian / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Agate (Carnelian / Chalcedony)

Silicon Dioxide (SiO2)

Agate (specifically a small Chalcedony nodule) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Agate (specifically a small Chalcedony nodule)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Orbicular Jasper (Silicon Dioxide (SiO2), variety of Chalcedony) — Mineral

Orbicular Jasper

Silicon Dioxide (SiO2), variety of Chalcedony

Chrysoprase (Chalcedony (cryptocrystalline SiO2 variety)) — Mineral

Chrysoprase

Chalcedony (cryptocrystalline SiO2 variety)

Rose Quartz (Quartz (SiO₂), specifically a variety of Quartz) — Mineral

Rose Quartz

Quartz (SiO₂), specifically a variety of Quartz