Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Yellow Quartz (or Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Dendritic Opal (Merlinite)
Hydrated Silica with Manganese/Iron oxide inclusions (SiO2·nH2O)
mineral
Diamond
Diamond (Pure Carbon, C)
mineral
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
mineral
Orthoceras Fossil in Limestone
Orthoceras (extinct genus of cephalopods), mineralized as Calcite (CaCO3) in Fossiliferous Limestone
sedimentary
Almandine Garnet
Almandine (Fe3Al2Si3O12)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Septarian Nodule
Siderite or Calcite Concretion
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Obsidian
Obsidian (Volcanic Glass, SiO2 dominated)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Amber
Succinite (Resin)
mineral
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Ruby (Raw/Rough)
Corundum (Al2O3 with Chromium trace)
mineral
Obsidian
Volcanic glass (high silica SiO2)
igneous
Botryoidal Hematite (Kidney Ore)
Iron(III) oxide (Fe2O3)
Mineral
Psilomelane (Black Hematite/Manganese Ore)
Barium Manganese Oxide (Formula: BaMn9O18(OH)4)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
metamorphic
Quartz (specifically Milky/Yellow Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Gold Ore in Matrix
Native Gold (Au) in Quartz/Limonite host rock
mineral
Gold Ore in Quartz
Native Gold (Au) in Quartz (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Moss Agate
Chalcedony (Silicon Dioxide) with dendritic inclusions (SiO2)
Mineral
Gold Nugget
Native Gold (Au)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Green Moss Agate
Agate (Silicon Dioxide - SiO2) with inclusions of hornblende or chlorite
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky Quartz with Iron Staining)
Silicon Dioxide (SiO2)
mineral
Quartz / Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Gneiss (pronounced "nice")
metamorphic
Raw Diamond
Diamond (C)
mineral
Moonstone
Adularia (orthoclase) or Albite (plagioclase), a feldspar mineral (KAlSi3O8 or NaAlSi3O8 respectively, often a mixture)
mineral
Tiger's Eye (Inlaid in a band)
SiO2 (Silicon Dioxide with Crocidolite inclusions)
mineral
Druzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcite (CaCO3)
Mineral
Dalmatian Jasper
Peralkaline rhyolite
igneous
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic