Rock Identifier

Category

Synthetic (Not A Natural Rock)

Browse synthetic (not a natural rock) specimens identified by the Rock Identifier community.

Learn about Synthetic (Not A Natural Rock) in the encyclopedia

Asphalt Rock

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Chalk

Zircon

Obsidian

Kimberlite

Emerald in Matrix

Emerald in Matrix

Tripolite

Guano

Halite

Aquamarine Matrix

Aquamarine Matrix

Rock Salt

Yellow Jasper (Silicon Dioxide (SiO2) with iron hydroxides) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Chert Geode with Quartz Druzy (Microcrystalline Quartz (SiO2) with macrocrystalline Quartz) — sedimentary

Chert Geode with Quartz Druzy

Microcrystalline Quartz (SiO2) with macrocrystalline Quartz

Chert (Banded) (Cryptocrystalline Silica (SiO2)) — sedimentary

Chert (Banded)

Cryptocrystalline Silica (SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Citrine

Silicon Dioxide (Quartz variety), SiO2

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Moldavite (Tektite (Natural Silica Glass)) — meteorite

Moldavite

Tektite (Natural Silica Glass)

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Citrine Quartz Cluster

Silicon Dioxide (SiO2)

Dyed Tumbled Quartz (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Tumbled Quartz

Silicon Dioxide (SiO2) with artificial pigment

Tektite (Indochinite) (Tektite (Natural silica glass)) — meteorite

Tektite (Indochinite)

Tektite (Natural silica glass)

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Blue Quartz with Graphite/Tourmaline Inclusions (Silicon Dioxide (SiO2) with Carbon (C) or Schorl elements) — mineral

Blue Quartz with Graphite/Tourmaline Inclusions

Silicon Dioxide (SiO2) with Carbon (C) or Schorl elements

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

Quartz (Iron-stained Quartz Pebble)

Silicon Dioxide (SiO2)

Smoky quartz (rough, water-worn crystal) (Quartz, silicon dioxide (SiO₂), smoky variety) — mineral

Smoky quartz (rough, water-worn crystal)

Quartz, silicon dioxide (SiO₂), smoky variety

Green Onyx (Chalcedony (Silicon Dioxide, SiO2)) — gemstone

Green Onyx

Chalcedony (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Red Jasper (Quartz) (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — sedimentary

Red Jasper (Quartz)

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Citrine (Quartz (Silicon dioxide, SiO2)) — gemstone

Citrine

Quartz (Silicon dioxide, SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Rough Diamond (Natural Diamond (Carbon, C)) — mineral

Rough Diamond

Natural Diamond (Carbon, C)

Septarian Pebble (Septarian nodule / Concretion) — sedimentary

Septarian Pebble

Septarian nodule / Concretion

Yellow Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

Banded Chert (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert

Silicon Dioxide (SiO2)

Tektite (Indochinite) (Tektite (Natural silica glass)) — meteorite

Tektite (Indochinite)

Tektite (Natural silica glass)

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Honey Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Honey Calcite

Calcite (Calcium Carbonate, CaCO3)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

Lemon Quartz (or Yellow Calcite) (Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)) — mineral

Lemon Quartz (or Yellow Calcite)

Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)

Milky Quartz with Iron Inclusions (Silicon Dioxide (SiO2) with Hematite/Limonite) — mineral

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2) with Hematite/Limonite

Red Jasper with Quartz Veining (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper with Quartz Veining

Jasper (Silicon Dioxide, SiO2)

Chalcedony Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Chalcedony Geode Fragment

Silicon Dioxide (SiO2)

Diamond (C) — gemstone

Diamond

C

Citrine (tumbled) (Silicon dioxide, SiO2) — mineral

Citrine (tumbled)

Silicon dioxide, SiO2

Diamond (Natural Diamond (Carbon, C)) — gemstone

Diamond

Natural Diamond (Carbon, C)

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

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Blue Lace Agate (often dyed) (Silicon dioxide (SiO2) - variety of chalcedony) — mineral

Blue Lace Agate (often dyed)

Silicon dioxide (SiO2) - variety of chalcedony

Flint (Microcrystalline quartz (SiO2)) — sedimentary

Flint

Microcrystalline quartz (SiO2)

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

Jasper (Chert)

Silicon Dioxide (SiO2)