Andesite
Andesite
igneous
Category
Organic (Paper And Cellulose)
Browse organic (paper and cellulose) specimens identified by the Rock Identifier community.
Porphyritic Andesite
Andesite
igneous
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
not a rock
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Sandstone or Limestone
Sedimentary Rock
Sedimentary
Chalk
CaCO3 (primarily Calcium Carbonate), biogenic sedimentary rock
Sedimentary
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
N/A (The provided image is a storyboard/digital document)
N/A
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Mineral
Echinoidea (Fossil Sea Urchin)
Echinodermata Echinoidea
sedimentary
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral/Mineraloid
Pumice or Tufa/Travertine
Pumice (if igneous) or Calcareous Tufa (if sedimentary)
igneous/sedimentary
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Synthetic / Manufactured Artifact
Granite
Granite
Igneous
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Synthetic material (Not a rock or mineral)
Vesicular Basalt (Pumice-like)
Vesicular Basalt
igneous
Basalt with Quartz Vein
Mafic Igneous Rock (SiO2 filling)
igneous
Granite
Granite
Igneous
Basalt
Mafic volcanic rock (Primarily Plagioclase Feldspar and Pyroxene)
Igneous
Basalt
Basalt
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt Pebble
Basalt
igneous
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Granite or Pegmatite with Mica
Granitoid
igneous
Quartz with Tourmaline Inclusions (Tourmalinated Quartz)
SiO2 with complex borosilicate inclusions
Mineral
Basalt
Extrusive Mafic Igneous Rock
igneous
Buffalo Nickel (Indian Head Nickel)
Cupronickel (75% Copper, 25% Nickel)
mineral (processed alloy)
N/A - Image does not contain a rock or mineral
Anthropogenic textile material
Non-geological
Spinosaurus Tooth Fossil
Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)
sedimentary
Chondrite Meteorite
Ordinary Chondrite (S-type Asteroid fragment)
mineral
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Anthropogenic / Non-mineral
Sea Glass (often mistaken for Gemstones)
Amorphous Silica (SiO2) with trace additives
mineraloid
Fossilized Fish (Lepidotes)
Lepidotes sp. (Order: Lepisosteiformes)
sedimentary
Green Tourmaline
Elbaite (part of Tourmaline group), Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
mineral
Black Obsidian and Hematite
Volcanic Glass (SiO2) and Hematite (Fe2O3)
igneous and mineral
Gold Nugget
Native Gold (Au)
mineral
Ocean Jasper
Orbicular Jasper (Silicon Dioxide - SiO2)
sedimentary
Basalt
Extrusive mafic igneous rock
igneous
Basalt with Hematite staining
Extrusive mafic igneous rock with Fe2O3
igneous
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Basalt
igneous