Kyawthuite
Kyawthuite (Bi3+Sb5+O4)
mineral
Category
Mineralogical Specimen
Browse mineralogical specimen specimens identified by the Rock Identifier community.
Learn about Mineralogical Specimen in the encyclopedia
View all →
Granite Pebble
Intrusive Magmatic Granite (Quartz, Feldspar, Mica)
igneous
Dyed Quartz Crystals
Silicon Dioxide (SiO2) with artificial pigment
mineral
Quartz (Milky/Yellowish)
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Fossiliferous)
Arenite / Sedimentum arenaceum
sedimentary
Amethyst Geode
Silicon Dioxide with trace inclusions of Iron (SiO2)
mineral
Quartz (with iron oxide staining)
Silicon Dioxide (SiO2)
mineral
Bumblebee Jasper
Anhydrite-Aragonite mixture with Orpiment and Realgar
mineraloid
Fulgurite
Luechatelierite (SiO2 glass)
mineraloid
Brown Agate
Cryptocrystalline Quartz (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
sedimentary
Carnelian (Flame Polished)
Carnelian (SiO2 with Iron Oxide impurities)
mineral
Milky calcite specimen
Calcite (calcium carbonate, CaCO₃)
mineral
Quartz Pebble (often referred to as 'Sea Glass' or 'River Stone' when worn smooth)
Silicon Dioxide (SiO2)
mineral
Quartzite Beach Pebble
Quartzite (primarily SiO2)
metamorphic
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Agate Geode
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Uncertain light-colored stone on polished granite
Likely granite background; small specimen not confidently identifiable
igneous
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Granite
Phaneritic plutonic igneous rock (SiO2 range 65-75%)
igneous
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium impurities
mineral
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
mineral
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
mineral
Sandstone (Quartzite-rich Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Zirconia (Ceramic) & Ion-X Glass
Zirconium Dioxide (ZrO2) and Ion-strengthened Aluminosilicate Glass
Synthetic Mineral / Glass
Diamond (set in jewelry)
Diamond (Carbon, C)
mineral
Fossiliferous Limestone with Rugose Coral
Calcium Carbonate (CaCO3) featuring Rugosa (extinct order of solitary and colony corals)
sedimentary
Granite River Rock
Phaneritic Felsic Igneous Rock (Granite)
igneous
Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Fossilized Tabulate Coral (Honeycomb Coral)
Favosites (Order: Tabulata)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Chert (Field Stone/Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz (Carved or Tumbled)
Silicon Dioxide (SiO2)
mineral