Rock Identifier

Category

Synthetic (Glass)

Browse synthetic (glass) specimens identified by the Rock Identifier community.

Learn about Synthetic (Glass) in the encyclopedia

Opalite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Zincite

Sideromelane

Lead Feldspar

Black Obsidian

Maskelynite

Obsidian

Tachylite

Hyalite Opal

Perlite

Macusanite

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

Citrine or Yellow Quartz

Silicon Dioxide (SiO2) with iron impurities

Chert (Green River Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Green River Chert)

Microcrystalline Quartz (SiO2)

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

Tumbled Clear Quartz/Rock Crystal

Silicon Dioxide (SiO2)

Quartz (Variety of Rough Mineral Specimens) (Silicon Dioxide (SiO2)) — mineral

Quartz (Variety of Rough Mineral Specimens)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Milky or Rough Quartz)

Silicon Dioxide (SiO2)

Tumbled quartz crystal (likely smoky or iron-stained quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Tumbled quartz crystal (likely smoky or iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

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

Quartz (Milky/Chalcedony variety)

Silicon Dioxide (SiO2)

Weathered quartz-rich rock, likely quartzite (Quartzite (predominantly microcrystalline quartz, SiO₂), possibly quartz-rich sandstone or milky-vein quartz) — metamorphic

Weathered quartz-rich rock, likely quartzite

Quartzite (predominantly microcrystalline quartz, SiO₂), possibly quartz-rich sandstone or milky-vein quartz

Pumice (Pumice) — igneous

Pumice

Pumice

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Sea Glass (Amorphous silicon dioxide (Man-made glass weathered by nature)) — mineral

Sea Glass

Amorphous silicon dioxide (Man-made glass weathered by nature)

Sea Glass (Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature) — mineral

Sea Glass

Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature

Sea Glass (Man-made vitreous material) — mineral

Sea Glass

Man-made vitreous material

Sea Glass (Man-made silicate glass weathering product) — sedimentary

Sea Glass

Man-made silicate glass weathering product

Sea Glass (Man-made silicate glass) — sedimentary

Sea Glass

Man-made silicate glass

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert or flint fragment (Microcrystalline quartz (SiO₂), possibly iron-stained chert) — sedimentary

Chert or flint fragment

Microcrystalline quartz (SiO₂), possibly iron-stained chert

Chert (Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline quartz (SiO2)

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

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony

Cryptocrystalline Quartz (SiO2)

Chert (Cherty Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Cherty Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Brown Chert (Cryptocrystalline Silica (SiO2)) — sedimentary

Brown Chert

Cryptocrystalline Silica (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Citrine (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine

Citrine (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

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

Rose Quartz

Silicon dioxide (SiO2) with trace impurities of titanium, iron, or manganese

Raw Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Raw Citrine Quartz

Silicon Dioxide (SiO2)

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

Rose Quartz

Quartz (Silicon Dioxide) - SiO2

Sea Glass (specifically Frosted White) (Amorphous Silica (substance: Sodium-calcium silicate glass)) — Mineraloid (Anthropogenic/Man-made rock)

Sea Glass (specifically Frosted White)

Amorphous Silica (substance: Sodium-calcium silicate glass)

Mineraloid (Anthropogenic/Man-made rock)

Sea Glass (Man-made silicate glass) — gemstone

Sea Glass

Man-made silicate glass

Sea Glass (Man-made silicate glass (Amorphous silicon dioxide)) — sedimentary

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

Sea Glass (Man-made silicate glass (Amorphous silicon dioxide)) — mineral

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

Sea Glass (Amorphous Silicon Dioxide (Man-made glass weathered by nature)) — mineral

Sea Glass

Amorphous Silicon Dioxide (Man-made glass weathered by nature)

Sea Glass (Amorphous silicon dioxide (man-made glass weathered by nature)) — mineral

Sea Glass

Amorphous silicon dioxide (man-made glass weathered by nature)