Yellow Calcite
Calcium Carbonate (CaCO3)
Category
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Yellow Calcite
Calcium Carbonate (CaCO3)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Milky Quartz with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Disulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Blue Celestite
Celestine (Strontium Sulfate, SrSO4)
Rose Quartz Bead
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Gold-bearing Quartz
Auriferous Quartz (SiO2 with native Au)
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium aluminum silicate hydroxide fluoride [KAl2(AlSi3O10)(F,OH)2]
Chert with Druzy Quartz Geode
Microcrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) - variety Jasper
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Optical Calcite
Calcium Carbonate (CaCO3)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Pyrite in Matrix
Iron Disulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Carnelian
Chalcedony (SiO2)
Adventurine (Green)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Blue Apatite
Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz (Citrine or Iron-stained variety)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with ferric iron impurities
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, manganese, or iron
Pyrite
Iron Sulfide (FeS2)
Hematite (Tumbled)
Iron(III) oxide (Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Fragment
Silicon Dioxide (SiO2)