Pyrite
Iron Sulfide (FeS2)
Category
Browse metamorphic or sedimentary depending on local grade specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
Yellow Aventurine
Silicon Dioxide with inclusions (SiO2 + Muscovite/Fuchsite)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
Quartz (likely Rose or Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Fossilized Wood (with Coal and Limonite)
Petrified Wood (Silicified or Carbonized Flora)
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Garnet (specifically Almandine)
Almandine - Fe3Al2(SiO4)3
Graywacke (River Cobble)
Graywacke (Lithic Sandstone)
Greenschist
Chlorite Schist
Seraphinite
Clinochlore (Mg,Fe)5Al(AlSi3O10)(OH)8 - specific variety for Seraphinite due to its fibrous inclusions and chatoyancy.
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Serpentine Schist with Quartz Vein
Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).
Pyrite
Iron Sulfide (FeS2)
Belemnite (Fossilized Rostrum)
Belemnitida (order), specifically Neohibolites or similar genera depending on age
Pyrite
Iron disulfide (FeS2)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Lignite (Brown Coal)
Humic Lignite (Carbonaceous sedimentary rock)
Quartz Crystal
Silicon Dioxide (SiO2)
Hematite (likely Botryoidal or Specularite variant)
Iron(III) oxide (Fe2O3)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite in Host Rock
Iron Disulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Galena
Lead(II) sulfide (PbS)
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)