Rock Identifier

Category

Mineral Pseudomorph

Browse mineral pseudomorph specimens identified by the Rock Identifier community.

Sunstone (variety of Feldspar) (Oligoclase Sunstone, Plagioclase Feldspar (Na,Ca)Al(Si,Al)Si2O8) — Mineral

Sunstone (variety of Feldspar)

Oligoclase Sunstone, Plagioclase Feldspar (Na,Ca)Al(Si,Al)Si2O8

Mineral
Quartz (Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz)

Silicon Dioxide (SiO2)

mineral
Quartz (Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

mineral
Rough Quartz (Silicon Dioxide (SiO2)) — mineral

Rough Quartz

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — Igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Igneous
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Quartz / Clear Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Green Fluorite

Calcium Fluoride (CaF2)

mineral
Tourmalinated Quartz (Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)) — mineral

Tourmalinated Quartz

Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Clear Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal

Silicon Dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Quartz River Cobble (Silicon Dioxide (SiO2)) — Mineral (Primary constituent)

Quartz River Cobble

Silicon Dioxide (SiO2)

Mineral (Primary constituent)
Moonstone (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Moonstone

Potassium Aluminum Silicate (KAlSi3O8)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Obsidian (Obsidian (Amorphous volcanic glass, predominantly SiO2)) — igneous

Obsidian

Obsidian (Amorphous volcanic glass, predominantly SiO2)

igneous
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Magnetite / Iron Ore (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore

Magnetite (Fe3O4)

mineral
Amber in Matrix (Succinite (Carbon-based organic polymer)) — Organic (Sedimentary context)

Amber in Matrix

Succinite (Carbon-based organic polymer)

Organic (Sedimentary context)
Green Fluorite (Fluorite (Calcium Fluoride) - CaF2) — mineral

Green Fluorite

Fluorite (Calcium Fluoride) - CaF2

mineral
Limestone with Calcite Veins (Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Calcite Veins

Calcium Carbonate (CaCO3)

sedimentary
Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — Mineral

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (specifically Clear Quartz or Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Clear Quartz or Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Portable Ceramic Space Heater (Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements) — not a rock (synthetic/industrial object)

Portable Ceramic Space Heater

Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements

not a rock (synthetic/industrial object)
Glauconitic Sandstone (Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone

Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

sedimentary
Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Quartz Crystal (specifically Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal (specifically Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Peach Moonstone (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Peach Moonstone

Potassium Aluminum Silicate (KAlSi3O8)

mineral
Amber (Succinite (fossilized resin)) — Mineral

Amber

Succinite (fossilized resin)

Mineral
Ruby Zoisite (Anyolite (Zoisite with Ruby and Pargasite)) — metamorphic

Ruby Zoisite

Anyolite (Zoisite with Ruby and Pargasite)

metamorphic
Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

igneous
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral