Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Category
Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)
Browse metamorphic rock (for nephrite and some jadeite); mineral (for jadeite) specimens identified by the Rock Identifier community.
Sandstone (Greywacke/Siltstone variant)
Clastic Sedimentary Rock (composed primarily of Quartz SiO2 and Feldspar)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Unakite
Epidotized Granite
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Agate Geode
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Anthracite Coal
Anthracite
metamorphic
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Emerald In Matrix (Quartz/Calcite)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Amazonite
Microcline (KAlSi3O8)
mineral
Diamond
Native Carbon (C)
mineral
Opal
Hydrated Silica (SiO2·nH2O)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Celestite (Celestine)
Strontium Sulfate (SrSO4)
mineral
Chalcedony (Common Opal or Agate variant)
Silicon Dioxide (SiO₂)
mineral
Sandstone (Water-worn)
Arenite
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Desert Rose
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O) or Barite (Barium Sulfate, BaSO4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)
mineral
Peridot (Gem-quality Olivine)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace titanium, iron, or manganese
mineral
Jasper
Silicon dioxide (SiO2)
Mineral
Kunzite (variety of Spodumene)
Lithium Aluminum Silicate (LiAlSi2O6)
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
White Topaz
Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)
mineral
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Basalt with Plagioclase Phenocrysts
Porphyritic Basalt
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Riverstone (Quartzite/Granite Cobble)
Silicon Dioxide (SiO2) based Quartzite or Silicate-rich Granite
metamorphic or igneous
Limestone Breccia
Sedimentary Breccia (Calcareous)
sedimentary
Druzy Quartz on Sandstone
Silicon Dioxide (SiO2) with Quartz crystals
sedimentary
Amazonite
Microcline (KAlSi3O8) with Trace Elements
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral