Rock Identifier

Category

Igneous And Metamorphic Derivative (Weathered)

Browse igneous and metamorphic derivative (weathered) specimens identified by the Rock Identifier community.

Learn about Igneous And Metamorphic Derivative (Weathered) in the encyclopedia

Matte Obsidian

Carbonatite

Frosted Obsidian

Cordierite Hornfels

Cordierite Hornfels

Metabasalt

Eulysite

Migmatite

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Diabase (also known as Dolerite) (Diabase) — igneous

Diabase (also known as Dolerite)

Diabase

Sapphire in a ring (Corundum (Al2O3)) — mineral

Sapphire in a ring

Corundum (Al2O3)

Granodiorite (Granodiorite (NaCa0.5(AlSi3O8)2(Fe,Mg)2)) — igneous

Granodiorite

Granodiorite (NaCa0.5(AlSi3O8)2(Fe,Mg)2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Clear quartz fragment (Quartz (silicon dioxide, SiO₂)) — mineral

Clear quartz fragment

Quartz (silicon dioxide, SiO₂)

Granite or Granitic Gneiss River Rock (Granite / Gneiss) — Igneous or Metamorphic

Granite or Granitic Gneiss River Rock

Granite / Gneiss

Igneous or Metamorphic

Quartz / Quartzite Fragment (Silicon Dioxide (SiO2)) — igneous, sedimentary, or metamorphic (mineral-based)

Quartz / Quartzite Fragment

Silicon Dioxide (SiO2)

igneous, sedimentary, or metamorphic (mineral-based)

Mica (Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)) — mineral

Mica

Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Zircon (Zircon (Zirconium Silicate - ZrSiO4)) — mineral

Zircon

Zircon (Zirconium Silicate - ZrSiO4)

Black Sand (Magnetite Sand) (Magnetite-rich Placers (Fe3O4)) — sedimentary

Black Sand (Magnetite Sand)

Magnetite-rich Placers (Fe3O4)

Ruby (Raw Corundum) (Corundum (Aluminum Oxide with Chromium), Al2O3:Cr) — mineral

Ruby (Raw Corundum)

Corundum (Aluminum Oxide with Chromium), Al2O3:Cr

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Vein in Schist / Gneiss Metamorphic Matrix (Silicon Dioxide (SiO2) in metamorphic schist host rock) — metamorphic

Quartz Vein in Schist / Gneiss Metamorphic Matrix

Silicon Dioxide (SiO2) in metamorphic schist host rock

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

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

Quartz (Common or Milky) (Silicon Dioxide (SiO2)) — mineral

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartz (Milky/Crystalline variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Quartz (Milky/Clear variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Rock Fragment with Calcite/Quartz Vein (Polymictic Rock Fragment (SiO2 / CaCO3)) — igneous

Rock Fragment with Calcite/Quartz Vein

Polymictic Rock Fragment (SiO2 / CaCO3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Quartz (Common or Milky) (Silicon Dioxide (SiO2)) — mineral

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Biotite (Black Mica) (K(Mg,Fe)3AlSi3O10(OH,F)2) — mineral

Biotite (Black Mica)

K(Mg,Fe)3AlSi3O10(OH,F)2

Beach Pebble (Basalt/Porphyry) (Weathered Basalt or Porphyry) — igneous

Beach Pebble (Basalt/Porphyry)

Weathered Basalt or Porphyry

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

White Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz pebble (Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz pebble (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz pebble / Quartzite (Silicon Dioxide (SiO2)) — sedimentary

Quartz pebble / Quartzite

Silicon Dioxide (SiO2)

Mixed River Pebbles (Clastic Sedimentary Alluvial Deposit / Polymictic Conglomerate Clasts) — sedimentary

Mixed River Pebbles

Clastic Sedimentary Alluvial Deposit / Polymictic Conglomerate Clasts

Quartz / Iron-Stained Quartz (Silicon Dioxide (SiO2) with iron oxide inclusions/staining) — mineral

Quartz / Iron-Stained Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions/staining

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

Quartz (Small Pebble)

Silicon Dioxide (SiO2)

Quartz with Iron Oxide (SiO2) — mineral

Quartz with Iron Oxide

SiO2

Quartz (Milky/Clear variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)