Tree Agate
Silicon dioxide (SiO2)
Category
Browse mineralish (variety of chalcedony) specimens identified by the Rock Identifier community.
Tree Agate
Silicon dioxide (SiO2)
Agate
Banded Chalcedony (SiO2)
Botryoidal Chalcedony (Geode fragment)
Silicon Dioxide (SiO2)
Lake Superior Agate
Banded Chalcedony (SiO2)
Bloodstone
Heliotrope (Chalcedony)
Druzy Chalcedony (Agate Geode)
Silica (SiO2) - Cryptocrystalline Quartz with druzy macrocrystalline quartz
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Chalcedony (cryptocrystalline Silicon Dioxide - SiO2)
Tiger's Eye
SiO2 (Silicon Dioxide) with fibrous crocidolite inclusions
Chalcedony (Quartz Pebble)
Cryptocrystalline Quartz (SiO2)
Picture Jasper
SiO2, Microcrystalline Quartz
Chert / Jasper
Silicon Dioxide (SiO2)
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
Agate
Banded Chalcedony (SiO2)
Agate (Fortification Agate)
Banded Chalcedony (SiO2)
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
Agate
Agatized Chalcedony (SiO2)
Lake Superior Agate
Banded Chalcedony (SiO2)
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Yellow Jasper
Chalcedony/Quartz (SiO2)
Carnelian
Carnelian Chalcedony (SiO2)
Moss Agate
Silicon dioxide (SiO2) with inclusions
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions
Chalcedony (Agate/Carnelian type)
Silicon Dioxide (SiO2)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
Chalcedony (Common Opal variant)
Silicon dioxide (SiO2) with varying levels of hydration
Chalcedony (Botryoidal Agate)
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Yellow Chalcedony (Agate/Jasper mix)
Silicon Dioxide (SiO2)
Chalcedony (Common Opal variant)
Silicon dioxide (SiO2) with microcrystalline structure
Diorite (Dalmatian Stone)
Phaneritic Plutonic Diorite
Plume Agate or Moss Agate
Silicon dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO2) with Hematite impurities
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
Tree Agate
Dendritic Chalcedony (SiO2)
Tree Agate
Silicon Dioxide (SiO2) with dendritic inclusions
Dalmation Jasper
Dalmation Stone (perthitic feldspar with arfvedsonite)
Dyed Blue Agate (Dragon Vein Agate)
Silicon Dioxide (SiO2) with artificial cobalt/organic dyes
Dendritic Agate (Tumbled)
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Bloodstone
Heliotrope (Cryptocrystalline Quartz, SiO2)