Quartz Druze
Silicon Dioxide (SiO2)
Category
Browse mineral health specimens identified by the Rock Identifier community.
Quartz Druze
Silicon Dioxide (SiO2)
Green Apophyllite and Stilbite on Quartz Cluster
Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)
Yellow Ochre (Limonite)
Limonite (FeO(OH)·nH2O)
Pyrite
Iron Disulfide (FeS2)
Quartz with inclusions
SiO2
Granitic Pegmatite
Pegmatitic Granite
Granite
Granite (Alkali-feldspar granite)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Granite Pebble
Granite
Milky Quartz
Silicon Dioxide (SiO2)
Septarian Nodule
Septarian Concretion (CaCO3 with Siderite/Limonite streaks)
Sandstone (lithic)
Lithic Wacke / Arenite
Basalt (Black Beach Pebble)
Basalt
Greenschist
Chlorite schist
Petrified Wood
Silicon Dioxide (SiO2) - Calcified / Silicified Wood
Green Moss Agate
Silicon Dioxide (SiO2) with Mineral Inclusions
Limestone Gravel
Calcium Carbonate (CaCO3)
Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Iron-stained Quartz
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Ferruginous Quartz (Hematoid Quartz)
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
Talc (Soapstone variety)
Talc (Hydrated magnesium silicate) - Mg3Si4O10(OH)2
Mookaite Jasper
Silicified Radiolarite (SiO2 with impurities)
Kambaba Jasper
Stromatolite Jasper (Microcrystalline Quartz)
Dragon Blood Jasper
Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Hematite
Hematite (Fe2O3)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Green Calcite
Calcite (CaCO3)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Citrine Quartz
Crystalline Silicon Dioxide (SiO2) with iron impurities
Citrine
Silicon Dioxide (SiO2)
Pink Amethyst Geode
Silicon Dioxide (SiO2) with Hematite/Iron impurities
Carnelian
Carnelian (a variety of Chalcedony) - SiO2
Quartz (specifically Citrine or Yellow Quartz)
Silicon Dioxide (SiO2)
Green Quartz (Prasiolite/Adventurine/Jasper)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide) - SiO2
Greenstone
Metamorphosed Mafic Igneous Rock