Yellow Quartz or Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary (Secondary Mineral) Within Igneous
Browse sedimentary (secondary mineral) within igneous specimens identified by the Rock Identifier community.
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Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
metamorphic
Black Chert
Chert (microcrystalline quartz)
Mineral
Green Jasper / Chert
Microcrystalline Quartz (SiO2)
sedimentary
Carnelian (Tumbled)
Silicon Dioxide (SiO2)
mineral
Dyed Agate Geode
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Carnelian
Carnelian (Silicon Dioxide - SiO2)
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Celestine (Celestite)
Strontium Sulfate (SrSO4)
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Amethyst Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Yellow Quartz (Polished)
Silicon Dioxide (SiO2) with iron inclusions
mineral
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
mineral
Smoky Quartz
Smoky Quartz (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Amazonite
Potassium Feldspar (KAlSi3O8)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (with probable Iron staining)
Silicon Dioxide (SiO2)
mineral
Amethyst (Tumbled)
Silicon Dioxide with iron impurities (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Amazonite
K(AlSi3O8) - Lead-bearing Microcline (Tectosilicate)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Amethyst (Faceted)
Silicon Dioxide with Iron impurities (SiO2)
mineral
Smoky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
mineral
Amazonite
Amazonstone (KAlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate (Chert/Chalcedony)
Silicon dioxide (SiO2)
mineral
Quartz (White or Milky Quartz Pebble)
Quartz (Silicon Dioxide, SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2 with iron impurities)
mineral
Ferruginous Sandstone
Arenite with Iron-Oxide Cement
sedimentary
Granite Pebble
Granite (Felsic Plutonic Rock)
igneous
Banded Gneiss
Gneiss (variable mineral composition)
metamorphic
Quartz Geode with Chalcedony
Silicon Dioxide (SiO2)
mineral
Quartz with Limonite Staining
Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)
Mineral
Quartz Geode
Silicon Dioxide (SiO2) within a geode
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral