Emerald in Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Category
Mineral (Silicate Replaced Organic Material)
Browse mineral (silicate replaced organic material) specimens identified by the Rock Identifier community.
Learn about Mineral (Silicate Replaced Organic Material) in the encyclopedia
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Red Garnet
Pyrope or Almandine (Silicate group, X3Y2(SiO4)3)
Mineral
Emerald (Tumbled Beryl)
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Sodalite
Sodium aluminum silicate chloride (Na8(Al6Si6O24)Cl2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Mica (Muscovite)
Potassium aluminum silicate - KAl2(AlSi3O10)(OH)2
mineral
Vesicular Basalt
Vesicular Basalt (rich in silicate minerals mostly Plagioclase and Pyroxene)
igneous
Sphalerite with Galena
Zinc Sulfide ((Zn,Fe)S) and Lead Sulfide (PbS)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Amber
Succinicum (Organic Gemstone - Resinite)
mineraloid
Limonite
Limonite (FeOO·nH2O)
mineral
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Septarian Nodule
Septarian Concretion (CaCO3 with Siderite/Limonite streaks)
sedimentary
Green Aventurine and Clear Quartz
Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)
Mineral
Olivine (Peridot)
Olivine (Magnesium Iron Silicate, (Mg,Fe)2SiO4)
mineral
Tiger's Eye
Silicon dioxide (SiO2) with fibrous inclusions of crocidolite
Mineral
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Mineral
Dalmatian Stone
Dalmatian Jasper / Feldspathic Igneous Rock
igneous
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Moss Agate
Silicon Dioxide (SiO2) with Chlorite/Hornblende inclusions
mineral
Amber
Succinite (specifically for Baltic amber); Chemical formula approximately C10H16O
mineral
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
mineral
Sandstone (Quartz-rich)
Arenite (primarily SiO2)
sedimentary
Limonite (Iron Ore)
Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)
mineral
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Basalt with Quartz Veins
Basalt (complex silicate) with Quartz (SiO2) intrusions
igneous
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
sedimentary
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Chert or Flint (polished/water-worn)
Chert (a microcrystalline or cryptocrystalline variety of quartz, SiO2). Flint is a specific variety of chert.
Sedimentary (most likely, as Chert is a sedimentary rock often found as nodules in limestone or as bedded deposits; however, it can also form by metasomatic replacement, which leans towards metamorphic processes under certain conditions)