Rock Identifier

Category

Organic Mineraloid And Mineral

Browse organic mineraloid and mineral specimens identified by the Rock Identifier community.

Learn about Organic Mineraloid And Mineral in the encyclopedia

Shungite

Black Shale

Ribbon Jasper

Andesine

Andesite

Andalusite

Andamooka Opal

Andradite Garnet

Andradite Garnet

Andesine-Labradorite

Andesine-Labradorite

Sapropel

Bituminous Shale

Bituminous Shale

Sperrylite

Garden Quartz (Lodolite / Inclusion Quartz) (Quartz with inclusions (SiO2 with various mineral inclusions)) — gemstone

Garden Quartz (Lodolite / Inclusion Quartz)

Quartz with inclusions (SiO2 with various mineral inclusions)

Fossilized Gastropod / Coral (Phylum Mollusca / Cnidaria (Silicified or Calcified)) — fossil

Fossilized Gastropod / Coral

Phylum Mollusca / Cnidaria (Silicified or Calcified)

Manganese Dendrite on Siltstone (Manganese Oxide (pyrolusite or psilomelane) Dendrites) — mineral/sedimentary

Manganese Dendrite on Siltstone

Manganese Oxide (pyrolusite or psilomelane) Dendrites

mineral/sedimentary

Sedimentary Rock (Limestone or Siltstone pebble) (Sedimentary rock fragment) — sedimentary

Sedimentary Rock (Limestone or Siltstone pebble)

Sedimentary rock fragment

Jade (Jadeite or Nephrite) — Mineral/Mineraloid

Jade

Jadeite or Nephrite

Mineral/Mineraloid

White limestone or chalky carbonate rock (Calcite-rich limestone; possibly chalk (CaCO₃)) — sedimentary

White limestone or chalky carbonate rock

Calcite-rich limestone; possibly chalk (CaCO₃)

Amber (Succinate (Fossilized Resin)) — mineral

Amber

Succinate (Fossilized Resin)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Pearl (Organic Mineral (CaCO3 with conchiolin)) — mineral

Pearl

Organic Mineral (CaCO3 with conchiolin)

Polished black stone egg, probably black obsidian (Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements) — gemstone

Polished black stone egg, probably black obsidian

Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements

Fossil Shark Tooth (Carcharodon sp. (likely Otodus or similar Lamniformes order)) — sedimentary

Fossil Shark Tooth

Carcharodon sp. (likely Otodus or similar Lamniformes order)

Chert (Green and Black Jasper variant) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Green and Black Jasper variant)

Cryptocrystalline Quartz (SiO2)

Sedimentary Rock with Crafts (Pet Rock) (Sedimentary rock decorated with synthetic materials) — sedimentary

Sedimentary Rock with Crafts (Pet Rock)

Sedimentary rock decorated with synthetic materials

Amber (Succinite (specifically for Baltic Amber), Formula: C10H16O) — Organic Gemstone (often associated with Sedimentary sequences)

Amber

Succinite (specifically for Baltic Amber), Formula: C10H16O

Organic Gemstone (often associated with Sedimentary sequences)

Amber (Succinite (Fossilized Tree Resin)) — fossil

Amber

Succinite (Fossilized Tree Resin)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Amber (Fossilized Tree Resin) — gemstone

Amber

Fossilized Tree Resin

Moss Agate (SiO2) — mineral

Moss Agate

SiO2

Amber (Succinate (Fossilized Tree Resin)) — fossil

Amber

Succinate (Fossilized Tree Resin)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Pearl (Calcium Carbonate (CaCO3) + Conchiolin) — mineral

Pearl

Calcium Carbonate (CaCO3) + Conchiolin

Manganese-coated Sandstone (Clastic sedimentary rock with Manganese Oxide (often Pyrolusite or Psilomelane)) — sedimentary

Manganese-coated Sandstone

Clastic sedimentary rock with Manganese Oxide (often Pyrolusite or Psilomelane)

Gravel / Limestone Fragment (Calcium Carbonate (CaCO3) / Fine-grained Sedimentary Rock) — sedimentary

Gravel / Limestone Fragment

Calcium Carbonate (CaCO3) / Fine-grained Sedimentary Rock

Amber (Succinite (Fossilized Tree Resin, C10H16O)) — gemstone

Amber

Succinite (Fossilized Tree Resin, C10H16O)

Black Onyx and Mother of Pearl (Cryptocrystalline Quartz (SiO2) and Nacre (Calcium Carbonate)) — mineral

Black Onyx and Mother of Pearl

Cryptocrystalline Quartz (SiO2) and Nacre (Calcium Carbonate)

Petrified Bone (Fossil Bone) (Per mineralization fossil bone (varies by organism, predominantly replacement by SiO2 - Quartz/Chalcedony)) — fossil

Petrified Bone (Fossil Bone)

Per mineralization fossil bone (varies by organism, predominantly replacement by SiO2 - Quartz/Chalcedony)

Amber (Fossilized Resin (C10H16O)) — mineral

Amber

Fossilized Resin (C10H16O)

Petrified Wood / Fossilized Bone (Silicified / Mineralized Fossil (Silica SiO2)) — fossil

Petrified Wood / Fossilized Bone

Silicified / Mineralized Fossil (Silica SiO2)

Quartz (Pink / Ferruginous) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pink / Ferruginous)

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Amber (Amber (C10H16O)) — mineral

Amber

Amber (C10H16O)

Amber (Fossilized tree resin (Amorphous organic polymer)) — gemstone

Amber

Fossilized tree resin (Amorphous organic polymer)

Amber (Succinite (fossilized tree resin)) — mineral

Amber

Succinite (fossilized tree resin)

Petrified Wood (Silicified Wood (primarily Quartz / Chalcedony: SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily Quartz / Chalcedony: SiO2)

Amber (Succinite (Fossilized Resin)) — mineral

Amber

Succinite (Fossilized Resin)

Amber (Succinite (Fossilized Resin)) — mineral

Amber

Succinite (Fossilized Resin)

Chert (Jasper/Chalcedony mix) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Chalcedony mix)

Microcrystalline Quartz (SiO2)

Amber (Succinates (Fossilized Resin)) — mineral

Amber

Succinates (Fossilized Resin)

Black Limestone (Bituminous Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Black Limestone

Bituminous Limestone (Calcium Carbonate - CaCO3)

Amethyst (Silicon dioxide (SiO2)) — mineral

Amethyst

Silicon dioxide (SiO2)

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

Milky Quartz Cluster

Silicon Dioxide (SiO2)