Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Category
Sedimentary (Secondary Mineral) Within Igneous
Browse sedimentary (secondary mineral) within igneous specimens identified by the Rock Identifier community.
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Zebra Stone
Siltstone (Argillaceous Siltstone)
sedimentary
Labradorite
Labradorite ((Ca,Na)(Al,Si)4O8)
mineral
Amygdaloidal Basalt (or Orbicular/Vesicular Basalt)
Basalt with quartz/agate amygdules
igneous
Porphyritic Basalt (with Quartz or Calcite inclusion)
Porphyritic Basalt (Matrix: SiO2/MgO/FeO, Phenocryst: likely Quartz or Calcite)
igneous
Graphic Granite (or Rapakivi-textured Granite)
Alkali feldspar granite
igneous
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Iron, or Manganese
mineral
Fossiliferous Limestone
Biomicrite / Fossiliferous Limestone (CaCO3)
fossil
Banded Gneiss River Pebble
Gneiss
metamorphic
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Green Andesite (or Greenstone / Altered Volcanic Rock)
Intermediate Volcanic Rock with Chlorite/Epidote Alteration
igneous
Basalt with Quartz/Feldspar Inclusion
Basalt (containing Silicate minerals such as SiO2 and (Ca,Na)(Al,Si)4O8)
igneous
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
mineral
Jasper (Chert / Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Prehnite
Prehnite Ca2Al2Si3O10(OH)2
mineral
Rhodonite
Rhodonite (MnSiO3)
mineral
Limestone with Iron Inclusions
Calcium Carbonate (CaCO3) with Hematite/Limonite
sedimentary
Basalt
Basalt (primarily composed of Plagioclase Feldspar and Pyroxene)
igneous
Banded Chert
Silicon Dioxide (SiO2) with impurities
sedimentary
Porphyritic Basalt
Amygdaloidal Porphyritic Basalt
igneous
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Vesicular Basalt
Basalt (Vesicular)
igneous
Gossan (Iron Hat)
Limonitic Gossan (Fe2O3·nH2O)
sedimentary
Amygdaloidal Basalt with Quartz/Zeolite Infill
Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)
igneous
Quartz Geode (Cracked)
Crystalline Silicon Dioxide (SiO2)
mineral
Seam Agate
Agate (Banded variety of Chalcedony, SiO2)
mineral
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/054f3fa7-f73a-456a-b566-38d3b6295e69-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Blue Chalcedony
Cryptocrystalline Silicon Dioxide (SiO2)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)
mineral
Quartz with Feldspar Veining
Silica (SiO2) with Potassium Feldspar (KAlSi3O8) inclusions
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Granodiorite Pebble
Granodiorite (containing Quartz, Plagioclase Feldspar, and Biotite/Amphibole)
igneous
Chert with Iron Oxide Staining
Microcrystalline Quartz (SiO2) with Limonite/Goethite staining
sedimentary
Amethyst Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Amethyst (SiO2 - Silicon Dioxide with iron impurities)
mineral
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2) with iron oxide impurities
mineral
Basalt (Amygdaloidal)
Amygdaloidal Basalt
igneous
Basalt River Pebble
Basalt (Aphanitic Mafic Volcanic Rock)
igneous
Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral