Rock Identifier

Category

Sedimentary (Secondary Mineral) Within Igneous

Browse sedimentary (secondary mineral) within igneous specimens identified by the Rock Identifier community.

Learn about Sedimentary (Secondary Mineral) Within Igneous in the encyclopedia

Carbonatite

Coal

Claystone

Shale

Dalmatian Jasper

Dalmatian Jasper

Pyroxenite

Anglesite

Pyromorphite

Fossiliferous Limestone

Fossiliferous Limestone

Marl

Black Shale

Feldspar

Pyrite in Matrix (Iron Disulfide (FeS2)) — mineral

Pyrite in Matrix

Iron Disulfide (FeS2)

Prehnite (Prehnite, Ca2Al2Si3O10(OH)2) — Mineral

Prehnite

Prehnite, Ca2Al2Si3O10(OH)2

Pink Granite Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Pink Granite Gneiss

Gneiss (High-grade metamorphic rock)

Chert (Common Opal or Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Common Opal or Flint variant)

Microcrystalline Quartz (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Mineral (Silicon Dioxide (SiO2)) — mineral

Quartz Mineral

Silicon Dioxide (SiO2)

Chert (Septarian Nodules-like) (Silicon dioxide (SiO2)) — sedimentary

Chert (Septarian Nodules-like)

Silicon dioxide (SiO2)

Botryoidal Chalcedony Geode (Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz) — mineral

Botryoidal Chalcedony Geode

Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz

Milky quartz with iron-oxide staining and matrix (Quartz, silicon dioxide (SiO₂), likely massive quartz) — mineral

Milky quartz with iron-oxide staining and matrix

Quartz, silicon dioxide (SiO₂), likely massive quartz

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Peridot (Olivine) (Magnesium Iron Silicate (Mg, Fe)2SiO4) — mineral

Peridot (Olivine)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Amazonite (K(AlSi3O8) - Potassium Aluminum Silicate) — mineral

Amazonite

K(AlSi3O8) - Potassium Aluminum Silicate

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Peridot (Olivine) (Olivine ((Mg, Fe)2SiO4)) — mineral

Peridot (Olivine)

Olivine ((Mg, Fe)2SiO4)

Rough Amethyst (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Rough Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Quartz nodule (River pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz nodule (River pebble)

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (SiO2) - Chalcedony variant) — mineral

Agate

Silicon Dioxide (SiO2) - Chalcedony variant

Milky Quartz (with Iron staining) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (with Iron staining)

Silicon Dioxide (SiO2)

Milky Quartz with Mineral Inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Mineral Inclusions

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Iron-stained) (Silicon Dioxide (SiO2) with Hematite/Limonite impurities) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Quartz (Iron-Stained Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained Quartz Pebble)

Silicon Dioxide (SiO2)

Rough Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Rough Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Citrine (Silicon Dioxide (SiO2) with ferric iron impurities) — mineral

Citrine

Silicon Dioxide (SiO2) with ferric iron impurities

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Red Quartz (Silicon Dioxide (SiO2) with Hematite inclusions) — mineral

Red Quartz

Silicon Dioxide (SiO2) with Hematite inclusions

Iceland Spar (Optical Calcite) (Calcite (CaCO3)) — mineral

Iceland Spar (Optical Calcite)

Calcite (CaCO3)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Ferruginous) (Arenite with Iron Oxide (Limonite/Hematite) coating) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide (Limonite/Hematite) coating

Sandstone Geode (Unbroken) (Siliciclastic sedimentary rock (primarily Quartz)) — sedimentary

Sandstone Geode (Unbroken)

Siliciclastic sedimentary rock (primarily Quartz)

Smoky Quartz (Silicon Dioxide (SiO2)) — gemstone

Smoky Quartz

Silicon Dioxide (SiO2)

Imperial Topaz (Al2SiO4(F,OH)2 (Fluorine-bearing Aluminum Silicate)) — gemstone

Imperial Topaz

Al2SiO4(F,OH)2 (Fluorine-bearing Aluminum Silicate)

White Quartz Pebble (with possible Quartz Geode cavity) (Silicon Dioxide (SiO2)) — mineral

White Quartz Pebble (with possible Quartz Geode cavity)

Silicon Dioxide (SiO2)

Quartz in Matrix (or Quartz Vein Rock) (Silicon Dioxide (SiO2) with host rock) — igneous

Quartz in Matrix (or Quartz Vein Rock)

Silicon Dioxide (SiO2) with host rock

Orbicular Jasper (Ocean Jasper or Poppy Jasper variant) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

Orbicular Jasper (Ocean Jasper or Poppy Jasper variant)

Silicon Dioxide (SiO2) with various inclusions

Almandine Garnet in Schist (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Almandine Garnet in Schist

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

Sandstone (with Limonite/Iron Staining) (Arenite (SiO2 based) with FeO(OH) staining) — sedimentary

Sandstone (with Limonite/Iron Staining)

Arenite (SiO2 based) with FeO(OH) staining

Red Jasper (Silicon Dioxide (SiO2) with Iron impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron impurities

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Milky Quartz (Water-worn pebble/nodule) (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz (Water-worn pebble/nodule)

Quartz (Silicon Dioxide - SiO2)