Red jasper
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
mineral
Category
Sedimentary Rock (Technically A Variety Of Chalcedony)
Browse sedimentary rock (technically a variety of chalcedony) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Technically A Variety Of Chalcedony) in the encyclopedia
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Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Feldsphathic Igneous Rock
igneous
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) with varying mineral impurities
sedimentary
Agate
Cryptocrystalline quartz (SiO2)
Mineral
Tumbled Agate
Silicon Dioxide (SiO2)
mineral
Tumbled brown chalcedony (likely jasper or agate)
Microcrystalline quartz, SiO₂; chalcedony with iron-oxide staining
mineral
Dalmatian Stone
Aplite (often incorrectly called Dalmatian Jasper)
igneous
Jasper
Silicon dioxide (SiO2)
sedimentary
Chert (Mookaite Jasper style)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fancy Jasper
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Carnelian
Carnelian (a variety of Chalcedony); SiO2 (Silicon Dioxide)
mineral
Jasper (specifically a banded or dark variety)
Silicon Dioxide (SiO2) with impurities
sedimentary
Agate
SiO2
Mineral
Red jasper
Microcrystalline quartz (SiO₂), colored mainly by iron oxides
mineral
Polished blue-gray agate/geode slice (tentative)
Microcrystalline quartz (chalcedony), SiO₂, possibly with druzy quartz
mineral
Polished brecciated jasper pebble
Microcrystalline quartz (SiO₂), with iron-oxide inclusions
mineral
Jasper
Jasper (Silicate - SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Tumbled agate or chalcedony
Microcrystalline quartz (SiO₂), likely yellow-brown chalcedony/agate
mineral
Weathered jasper or iron-stained quartzite
Silicified quartz-rich rock, primarily microcrystalline quartz (SiO₂) with iron-oxide/hydroxide staining
metamorphic
Tumbled bloodstone (heliotrope), probable
Chalcedony (microcrystalline quartz, SiO₂) with iron-oxide inclusions
mineral
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
sedimentary
Kambaba Jasper
Stromatolite / Fossilized Algae (Rhyolitic structure)
sedimentary
Agate
Cryptocrystalline quartz, SiO2
mineral
Sardonyx or Carnelian Agate
Silicon Dioxide (SiO2) with iron impurities
mineral
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Chert / Flint
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Jasper
Jasper / Silicon Dioxide (SiO₂)
sedimentary
Polished yellow jasper or opaque chalcedony bead
Microcrystalline quartz (SiO₂), likely iron-oxide-stained jasper
mineral
Jasper
Silicon Dioxide (SiO2)
mineral
Red jasper fragment
Jasper, microcrystalline quartz (SiO₂) colored chiefly by iron oxides
mineral
Ocean Jasper or Orbicular Jasper
SiO2
mineral
Red jasper (likely polished/tumbled)
Jasper, an opaque microcrystalline variety of quartz; mainly SiO₂ with iron-oxide inclusions
mineral
Dragon Blood Jasper
Epidote with Red Piedmontite (Chalcedony/Quartz variant)
sedimentary
Small tumbled jasper or chert pebbles
Microcrystalline quartz (SiO₂), likely iron-oxide-bearing jasper/chalcedony
mineral
Tumbled jasper or chert
Microcrystalline quartz (SiO₂), possibly iron-bearing jasper
mineral
Jasper River Stone
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
sedimentary
Chert / Flint
Cryptocrystalline Quartz (SiO2)
sedimentary