Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary mineral specimens identified by the Rock Identifier community.
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Petrified Wood
Silicified wood (Quartz/Chalcedony - SiO2)
Quartz (Milky or Druzy Quartz)
Silicon Dioxide (SiO2)
Hematite (Iron Ore)
Hematite (Fe2O3)
Snakeskin Agate
Agate (Cryptocrystalline Quartz, SiO2)
Carnelian (Agate)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
Blue Kyanite
Kyanite (Al2SiO5)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
White Agate (Chalcedony)
Agate (Silicon Dioxide - SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Orange Calcite
Calcium Carbonate (CaCO3)
Banded Agate (Pink Chalcedony)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Honey Calcite
Calcium Carbonate (CaCO3)
White Quartz Pebbles
Quartz (Silicon Dioxide, SiO2)
Carnelian Agate
Carnelian (SiO2 with iron oxide impurities)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Aragonite (Onyx Marble)
Calcium Carbonate (CaCO3), Orthorhombic crystal system
Red Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with iron inclusions
Carnelian
Carnelian (Varietal of Chalcedony, SiO2 with Iron Oxide impurities)
Jasper
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Graphite
Graphite (Native Carbon, C)
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Wood Jasper
Siliceous sedimentary rock (variety of Chert/Chalcedony)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Petrified Wood (Agatized/Silicified Wood)
Silicified Wood / Chalcedony (SiO2)
Jasper Beach Pebble
Silicon Dioxide (SiO2) - Macro-crystalline Quartz
Chert (Nodule)
Silicon Dioxide (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Dolomite on Prehnite (Saddle-shaped Dolomite)
Dolomite [CaMg(CO3)2] on Prehnite [Ca2Al(AlSi3O10)(OH)2]
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite mica (K(Al,Cr)2(AlSi3O10)(OH)2)
Amber
Succinicum (C10H16O)
Amber
Succinite (Organic Mineraloid)
Drill Core Samples (Varied Lithology)
Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)
Dalmatian Stone (Dalmation Jasper)
Aplite with Arfvedsonite inclusions
Jasper
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Limestone
Calcium Carbonate (CaCO3)