Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Category
Mineral Specimen
Browse mineral specimen specimens identified by the Rock Identifier community.
Aragonite (Sputnik habit)
Aragonite (Calcium Carbonate, CaCO3)
mineral
Chert (Jasper and Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Amygdaloidal Basalt with Secondary Minerals
Basalt containing secondary mineralization (likely Chlorite, Celadonite, or Zeolites)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Geode (unopened)
SiO2 - Chert-shelled concretion (mostly Quartz)
sedimentary
Ocean Jasper
Silicon Dioxide (SiO2) with various inclusions
Mineral (Variety of Quartz)
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
mineral
Gold Nugget
Native Gold (Au)
mineral
Banded Agate
Agate (Cryptocrystalline variety of Silica, SiO2)
mineral
Gossan (Iron Hat)
Limonitic Gossan (Fe-oxide/hydroxide complex)
igneous
Toast
Triticum aestivum (processed)
not a geological specimen
Megalodon Shark Tooth (Partial Fossil)
Otodus megalodon (fossilized in Calcium Phosphate/Apatite)
Mineral/Fossil
Basalt with Weathered Surface
Basalt
Igneous
Banded Agate
Sedimentary Cryptocrystalline Quartz (SiO2)
mineral
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (70–75% SiO2)
Igneous
Quartz (likely Milky Quartz)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2
Mineral
Azurite-Malachite (often called Azerite Malachite or Azurmalachite)
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone Beach Pebble
Clastic Sandstone (SiO2 - Quartz-dominant)
sedimentary
Orange Tabby (Felis catus)
Felis silvestris catus (variety: Red Mackerel Tabby)
Organic/Biological specimen (Non-Mineral)
Pyrite
Iron Sulfide (FeS2)
mineral
Calcite
Calcite (CaCO₃, Calcium Carbonate)
Mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Yellow Quartz (Citrine/Yellow Chalcedony)
Silicon Dioxide (SiO2)
mineral
Quartz-veined Basalt
Amygdaloidal or Porphyritic Basalt with Silicon Dioxide (SiO2) vein
igneous
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral
Gold Nugget
Native Gold (Au)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 primary composition)
sedimentary
Banded Agate (Mutton-fat or Pork-stone variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Sedimentary / Mineral
Quartz (likely a form of massive or vein quartz)
Quartz (SiO₂)
Mineral
Rough Green QuartzITE / Green Aventurine
Aventurine Quartz (SiO2 + Cr-muscovite inclusions)
metamorphic
Tree Agate (Dendritic Agate)
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Azurite-Malachite (often a mixed specimen)
Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2(CO3)(OH)2. The specimen appears to be a natural mixture or intergrowth of these two minerals.
Mineral
Gold Nugget
Native Gold (Au)
mineral
Gneiss with Quartz Veining
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Agate (specifically Moss or River Agate variety)
Cryptocrystalline Quartz (SiO2)
mineral
Botryoidal Pyrite
Iron Sulfide (FeS2)
mineral
Chert (Cherty Limestone or Flint)
Microcrystalline Silica (SiO2)
sedimentary