Rock Identifier

Category

Mineralological Specimen

Browse mineralological specimen specimens identified by the Rock Identifier community.

Red Jasper (Quartz (Silicon Dioxide) with Iron Oxide impurities (Fe2O3)) — mineralological specimen

Red Jasper

Quartz (Silicon Dioxide) with Iron Oxide impurities (Fe2O3)

mineralological specimen

N/A — This image does not display a rock, mineral, or geological specimen. It shows a human hand wearing a ring.

N/A

This image does not display a rock, mineral, or geological specimen. It shows a human hand wearing a ring.

Not a geological specimen (N/A (man-made object)) — N/A

Not a geological specimen

N/A (man-made object)

Unable to Identify (Image Obscured) — Indeterminate

Unable to Identify (Image Obscured)

Painted River Rock (Anthropogenic-modified Siliciclastic Sedimentary Rock) — Sedimentary

Painted River Rock

Anthropogenic-modified Siliciclastic Sedimentary Rock

Fossilized Bivalve Shell (Bivalvia (fossil specimen)) — sedimentary

Fossilized Bivalve Shell

Bivalvia (fossil specimen)

Note on Image Identification: Textile (N/A (Anthropogenic material)) — not a rock

Note on Image Identification: Textile

N/A (Anthropogenic material)

Geodal Limestone / Calcite Druze (Calcium Carbonate (CaCO3)) — sedimentary

Geodal Limestone / Calcite Druze

Calcium Carbonate (CaCO3)

Gold Ore in Quartz (Auriferous Quartz (Au + SiO2)) — igneous

Gold Ore in Quartz

Auriferous Quartz (Au + SiO2)

Note: No specimen visible — N/A

Note: No specimen visible

Echinoidea (Fossil Sea Urchin) (Echinodermata Echinoidea) — sedimentary

Echinoidea (Fossil Sea Urchin)

Echinodermata Echinoidea

Quartz Vein in Schist (Quartz (SiO2) in Mica Schist) — metamorphic

Quartz Vein in Schist

Quartz (SiO2) in Mica Schist

Unable to identify - Image contains non-geological items — N/A

Unable to identify - Image contains non-geological items

Note: Item is not a geological specimen (n/a) — none

Note: Item is not a geological specimen

n/a

Quartz Geode with Calcite (Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)) — Mineral/Geode

Quartz Geode with Calcite

Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)

Human Skin (Epidermis/Dermis) (Integumentary tissue (High content of hydroxyapatite in bones, though the surface is biological)) — Mineral-like biological tissue

Human Skin (Epidermis/Dermis)

Integumentary tissue (High content of hydroxyapatite in bones, though the surface is biological)

Mineral-like biological tissue

Not a rock, mineral, or geological specimen — N/A

Not a rock, mineral, or geological specimen

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

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Spinosaurus Tooth Fossil (Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)) — sedimentary

Spinosaurus Tooth Fossil

Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)

Quartz Vein in River Siltstone (Crystalline Quartz (SiO2) in Siliclastic Matrix) — sedimentary

Quartz Vein in River Siltstone

Crystalline Quartz (SiO2) in Siliclastic Matrix

Lemon (Mock specimen mimicking Citrine/Sulfur) (Citrus x limon) — Organic (Biological specimen)

Lemon (Mock specimen mimicking Citrine/Sulfur)

Citrus x limon

Organic (Biological specimen)

Diamond inlaid in Jewelry (Carbon (C)) — mineral

Diamond inlaid in Jewelry

Carbon (C)

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

Yellow Quartz Pebble

Quartz (Silicon Dioxide - SiO2)

Sandstone with Quartz Vein (Arenite with SiO2 intrusion) — sedimentary

Sandstone with Quartz Vein

Arenite with SiO2 intrusion

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

Quartz (Citrine or Iron-Stained variety)

Silicon Dioxide (SiO2)

Unidentifiable Specimen (Undetermined) — Unknown

Unidentifiable Specimen

Undetermined

The user-provided image does not contain a rock or mineral specimen — N/A

The user-provided image does not contain a rock or mineral specimen

One Pound Coin (UK) (Nickel-Brass Alloy (Cu-Zn-Ni)) — mineral

One Pound Coin (UK)

Nickel-Brass Alloy (Cu-Zn-Ni)

Limonitic Sandstone with Inclusion (Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)) — sedimentary

Limonitic Sandstone with Inclusion

Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)

Gold-bearing Quartz with Iron Oxides (Quartz (SiO2) with Limonite/Goethite (FeO(OH)) and Pyrite (FeS2)) — mineral

Gold-bearing Quartz with Iron Oxides

Quartz (SiO2) with Limonite/Goethite (FeO(OH)) and Pyrite (FeS2)

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

Chert (Jasper and Chalcedony)

Silicon Dioxide (SiO2)

Rough Quartz (or Quartzite pebble) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (or Quartzite pebble)

Silicon Dioxide (SiO2)

Toast (Triticum aestivum (processed)) — not a geological specimen

Toast

Triticum aestivum (processed)

not a geological specimen

Banded Agate (with Quartz Geode Center) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (with Quartz Geode Center)

Silicon Dioxide (SiO2)

Diamond (Diamond (Pure Carbon - C)) — mineral

Diamond

Diamond (Pure Carbon - C)

Chert (Cherty Limestone or Flint) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Cherty Limestone or Flint)

Microcrystalline Silica (SiO2)

Silver (Native Element) (Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen) — mineral

Silver (Native Element)

Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen

Quartz Geode with Goethite/Hematite (Silicon Dioxide (SiO2) with Iron Oxides) — mineral

Quartz Geode with Goethite/Hematite

Silicon Dioxide (SiO2) with Iron Oxides

Smoky Quartz (Herkimer-style) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (Herkimer-style)

Silicon Dioxide (SiO2)

Sparkling Druzy Quartz on Matrix (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Sparkling Druzy Quartz on Matrix

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)