Rock Identifier

Category

Mineral (Man Made Glass)

Browse mineral (man made glass) specimens identified by the Rock Identifier community.

Learn about Mineral (Man Made Glass) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Sideromelane

Black Obsidian

Maskelynite

Tachylite

Obsidian

Map Jasper

Hyalite Opal

Perlite

Macusanite

Tumbled cream chalcedony or quartz (Microcrystalline quartz, SiO₂; possibly iron-stained chalcedony) — mineral

Tumbled cream chalcedony or quartz

Microcrystalline quartz, SiO₂; possibly iron-stained chalcedony

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

Milky Quartz / Quartz Geode Fragment

Silicon Dioxide (SiO2)

Agate (Plume/Moss variety) (Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions) — mineral

Agate (Plume/Moss variety)

Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions

Polished black stone, likely black obsidian (Obsidian (volcanic glass; mainly SiO₂)) — igneous

Polished black stone, likely black obsidian

Obsidian (volcanic glass; mainly SiO₂)

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

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

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Milky Quartz (Quartz (Silica - SiO2)) — mineral

Milky Quartz

Quartz (Silica - SiO2)

Snowflake Obsidian (Spherulitic Volcanic Glass (SiO2)) — igneous

Snowflake Obsidian

Spherulitic Volcanic Glass (SiO2)

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

Iron-stained Quartz Pebble

Silicon Dioxide (SiO2) with Hematite/Limonite coatings

Quartz (Iron-stained) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Lodolite (Garden Quartz) (Silicon Dioxide (SiO2) with inclusions (Chlorite, Hematite, etc.)) — mineral

Lodolite (Garden Quartz)

Silicon Dioxide (SiO2) with inclusions (Chlorite, Hematite, etc.)

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

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

Quartz Pebble (Iron-Stained)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

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

Quartz Crystal Matrix

Silicon Dioxide (SiO2)

Milky quartz (rough quartz specimen) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (rough quartz specimen)

Quartz, silicon dioxide (SiO₂)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Granodiorite (or Granite) Pebble (Phaneritic Felsic Igneous Pebble) — igneous

Granodiorite (or Granite) Pebble

Phaneritic Felsic Igneous Pebble

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Chert with Calcite Veins (Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) intrusions) — sedimentary

Chert with Calcite Veins

Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) intrusions

Iron-stained Quartz (Silicon Dioxide with Limonite (SiO2 + FeO(OH)·nH2O)) — mineral

Iron-stained Quartz

Silicon Dioxide with Limonite (SiO2 + FeO(OH)·nH2O)

Milky Quartz (Gold-bearing Prospecting Specimen) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Gold-bearing Prospecting Specimen)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz River Pebble

Silicon Dioxide (SiO2)

Banded Sandstone (Beach Pebble) (Quartz Arenite Sandstone) — sedimentary

Banded Sandstone (Beach Pebble)

Quartz Arenite Sandstone

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz in Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz in Matrix

Silicon Dioxide (SiO2)

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

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

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

Milky Quartz with Mineral Inclusions

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (likely Sandstone or Mudstone) (Silicon Dioxide (SiO2) within Sedimentary Matrix) — sedimentary

Quartz Vein in Host Rock (likely Sandstone or Mudstone)

Silicon Dioxide (SiO2) within Sedimentary Matrix

Quartz (Yellow / Citrine Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Yellow / Citrine Pebble)

Silicon Dioxide (SiO2)

Quartz (Milky or Yellow/Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Yellow/Citrine Quartz)

Silicon Dioxide (SiO2)

Quartz with Mica/Schist inclusion (Silicon Dioxide (SiO2) with Phyllosilicates) — mineral

Quartz with Mica/Schist inclusion

Silicon Dioxide (SiO2) with Phyllosilicates

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

River Cobble (Quartz-rich Sandstone) (Arenite with iron oxide staining) — sedimentary

River Cobble (Quartz-rich Sandstone)

Arenite with iron oxide staining

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

Milky Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Yellow Quartz / Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz / Citrine Quartz

Silicon Dioxide (SiO2)

Sandstone (Pebble) (Arenite (SiO2 based)) — sedimentary

Sandstone (Pebble)

Arenite (SiO2 based)