Polished bumblebee jasper bead
Bumblebee jasper (trade name); chiefly calcite, aragonite, and pyrite, with variable realgar/orpiment and other minerals
mineral
Category
Minerals
Browse minerals specimens identified by the Rock Identifier community.
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Mica-rich metamorphic rock, likely schist
Muscovite–biotite schist, possibly with quartz and feldspar
metamorphic
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Igneous
Gneiss (Cobble)
Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Banded gneiss pebble
Gneiss, a foliated metamorphic rock composed mainly of quartz, feldspar, and dark biotite or amphibole
metamorphic
Likely chrysocolla-bearing copper ore
Chrysocolla, a hydrated copper silicate; exact identification is uncertain from the small, blurry image
mineral
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
mineral
Pebble with vesicles, likely basalt
Vesicular basalt; chiefly plagioclase, pyroxene, and iron-magnesium minerals
igneous
Gabbro (Water-Worn Pebble)
Gabbro (Plagioclase Feldspar and Pyroxene)
igneous
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Quartz pebble
Silicon dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Quartz Pebble
Silicon dioxide (SiO2)
sedimentary
Iron-stained quartz
Quartz (SiO₂), likely colored by iron-oxide staining
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Weathered basalt pebble
Basalt, a fine-grained mafic volcanic rock; likely containing plagioclase and pyroxene with weathering products
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz-rich rock, likely milky quartz vein material
Predominantly quartz (SiO₂); exact rock type cannot be confirmed from the photograph
igneous
Iron-stained quartz (probable quartz vein fragment)
Quartz, SiO₂, with iron-oxide staining
mineral
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Turquoise
CuAl6(PO4)4(OH)8·4H2O
gemstone
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)
mineral
Quartz-bearing pegmatite
Quartz (SiO₂) with feldspar and mica, likely a granitic pegmatite
igneous
Likely amazonite-bearing pegmatite
Granite pegmatite containing amazonite (microcline feldspar, KAlSi₃O₈); exact identification is uncertain from the photo
igneous
Azurite Malachite (Mixed)
Azurite-Malachite; Azurite: Cu3(CO3)2(OH)2 / Malachite: Cu2CO3(OH)2
mineral
Ironstone (likely Limonite or Goethite nodule)
Hydrothermally altered Ferric Hydroxide (FeO(OH)·nH2O)
sedimentary
Geode
Quartz / Chalcedony nodule
sedimentary
Fossilized Shark Tooth
Carcharodon (Galeocerdo sp. or Lamniform)
mineral
Possible milky quartz vein or nodule
Quartz (SiO₂), provisionally identified from the visible white translucent material
mineral
Mica schist
Schist dominated by muscovite/biotite mica, commonly with quartz and feldspar
metamorphic
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
metamorphic
Granite
Intrusive Igneous Rock (Felsic)
igneous
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss
metamorphic