Rock Identifier

Category

Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite)

Browse mineral like byproduct (often mistaken for igneous rock or meteorite) specimens identified by the Rock Identifier community.

Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Granite (Granite (Phaneritic Quartz-Feldspar rock)) — igneous

Granite

Granite (Phaneritic Quartz-Feldspar rock)

Ruby (Corundum) (Al2O3 (Aluminium oxide with Chromium impurities)) — Mineral

Ruby (Corundum)

Al2O3 (Aluminium oxide with Chromium impurities)

Amethyst Geode/Cluster (Quartz (SiO2) - variety Amethyst) — Mineral

Amethyst Geode/Cluster

Quartz (SiO2) - variety Amethyst

Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

Quartz / River Cobble (Silicon Dioxide (SiO2)) — mineral

Quartz / River Cobble

Silicon Dioxide (SiO2)

Lapis Lazuli (Raw Ore) (Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)) — metamorphic

Lapis Lazuli (Raw Ore)

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

Red Sandstone (Clastic Terrigenous Sedimentary Rock (typically Hematitic Quartz Arenite or Arkose)) — sedimentary

Red Sandstone

Clastic Terrigenous Sedimentary Rock (typically Hematitic Quartz Arenite or Arkose)

Red Sandstone (Clastic sedimentary rock (primarily SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Clastic sedimentary rock (primarily SiO2 with Fe2O3)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Garden Quartz (Phantom Quartz) (Silicon Dioxide (SiO2) with various inclusions (often Chlorite, Hematite, or Iron)) — mineral

Garden Quartz (Phantom Quartz)

Silicon Dioxide (SiO2) with various inclusions (often Chlorite, Hematite, or Iron)

Peridotite (Olivine/Peridot) (Peridotite: (Mg,Fe)2SiO4 (Olivine-rich ultramafic rock)) — igneous

Peridotite (Olivine/Peridot)

Peridotite: (Mg,Fe)2SiO4 (Olivine-rich ultramafic rock)

Sandstone (Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)) — sedimentary

Sandstone

Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pegmatitic Granite (Granite (Alkali-feldspar granite) with Quartz and Orthoclase) — igneous

Pegmatitic Granite

Granite (Alkali-feldspar granite) with Quartz and Orthoclase

Shale or Mudstone (Based on appearance) (Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)) — Sedimentary

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Red Sandstone (Arenite (primarily Quartz with Iron Oxide)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Iron Oxide)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Banded Agate (specifically Mexican Lace Agate variety appearance) (Silicon Dioxide (SiO2 / Chalcedony)) — mineral

Banded Agate (specifically Mexican Lace Agate variety appearance)

Silicon Dioxide (SiO2 / Chalcedony)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Pyrite in Matrix (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (Fool's Gold)

Iron Sulfide (FeS2)

Sandstone (Clastic Sedimentary Rock (composed mostly of quartz and/or feldspar)) — sedimentary

Sandstone

Clastic Sedimentary Rock (composed mostly of quartz and/or feldspar)

Red Sandstone (Arenite (primarily Quartz with Hematite cement)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Diorite (Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)) — igneous

Diorite

Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Scoria (Lava Rock) (Scoria (Vesicular Basaltic Glass/Rock)) — igneous

Scoria (Lava Rock)

Scoria (Vesicular Basaltic Glass/Rock)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Green Fluorite (Fluorite (Calcium Fluoride - CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Diorite (Diorite) — igneous

Diorite

Diorite

Rose Quartz Druzy (Silicon Dioxide (SiO2)) — mineral

Rose Quartz Druzy

Silicon Dioxide (SiO2)

Blue Topaz (specifically London Blue shade) (Topaz - Al2SiO4(F,OH)2) — mineral

Blue Topaz (specifically London Blue shade)

Topaz - Al2SiO4(F,OH)2

Rainbow Moonstone with Black Tourmaline (White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Rainbow Moonstone with Black Tourmaline

White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Gneiss (Metamorphic rock of high-grade regional metamorphism) — metamorphic

Gneiss

Metamorphic rock of high-grade regional metamorphism

Granite (Felsic Intrusive Igneous Rock) — igneous

Granite

Felsic Intrusive Igneous Rock

Banded Agate (specifically Sardonyx or Red Agate) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (specifically Sardonyx or Red Agate)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral / Sedimentary occurrence

Quartz Pebble

Silicon Dioxide (SiO2)

Mineral / Sedimentary occurrence

Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)