Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary Rock (Specifically A Concretion Or Possibly A Geode)
Browse sedimentary rock (specifically a concretion or possibly a geode) specimens identified by the Rock Identifier community.
Clear Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Limestone (specifically Fossiliferous Limestone)
Calcium Carbonate (CaCO3)
sedimentary
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
sedimentary
Quartz
SiO₂ (Silicon Dioxide)
Mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Geode (unopened nodule)
Silicon Dioxide (SiO2) Nodule
sedimentary
Moqui Marble (Iron Concretion)
Iron Oxide Concretion (Goethite/Hematite Cemented Sandstone)
sedimentary
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Dalmatian Stone (Dalmation Jasper)
Aplite with Arfvedsonite inclusions
igneous
Stromatolite
Biogenic Sedimentary Rock (composed predominantly of CaCO3)
sedimentary
Banded Agate (specifically Eye Agate / Chalcedony)
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Quartz (variety of colors)
SiO2 (Silicon Dioxide)
Mineral
Basalt River Pebble
Aphanitic Mafic Basalt
igneous
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
mineral
Biological Specimen (Domestic Dog)
Canis lupus familiaris
Organic (Non-rock)
Quartzite
Quartzite (SiO2)
metamorphic
Limestone (specifically Crushed Limestone/Calcictic)
Calcium Carbonate (CaCO3)
sedimentary
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Quartz (likely Clear Quartz or Rock Crystal)
Quartz (SiO2)
Mineral
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
igneous
Chert (specifically Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Celestite Geode
Celestine (Strontium Sulfate, SrSO4)
mineral
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Iron Oxide impurities)
sedimentary
Quartz Druzy on Matrix (likely Agate or Jasper)
Silicon Dioxide (SiO2) with various mineral inclusions
mineral
Amethyst (specifically Chevron Amethyst or Dream Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Geode (Chert or Quartz Nodule)
Silicon Dioxide (SiO2)
sedimentary
Ironstone Concretion / Limonite-stained Siltstone
Ironstone (primarily Limonite FeO(OH)·nH2O and Siltstone)
sedimentary
Banded Agate (Orca Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Amber with inclusion
Amber (Fossilized Tree Resin)
mineral
Green Chalcedony (likely Green Agate or Chrysoprase)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Mineral
Red Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron Oxide impurities (Hematite)
sedimentary
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Chert Nodules (with Gryphaea or Shell inclusions)
Microcrystalline Quartz (SiO2) with Calcitic inclusions
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Ironstone Concretion
Siderite or Hematite Concretion
sedimentary