Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)
Mineral, part of a rock
Category
Mineral, Part Of A Rock
Browse mineral, part of a rock specimens identified by the Rock Identifier community.
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Sandstone (with Lichen)
Arenite (primarily SiO2)
sedimentary
Quartz Druzy (Geode Fragment)
Silicon Dioxide (SiO2)
mineral
Quartz-veined Mudstone or Argillite
SiO2 (Quartz) in Siltstone/Mudstone matrix
sedimentary
Quartz Druzy (Geode Fragment)
Silicon Dioxide (SiO2)
mineral
River Rock (likely Siltstone or fine-grained Sandstone)
Clastic Sedimentary Rock
sedimentary
Geode Nodule Fragment
Quartz / Chalcedony Nodule
sedimentary
Weathered conglomeratic rock, likely iron-stained sandstone
Probable ferruginous, clast-bearing sandstone; exact identification requires examination of a fresh surface
sedimentary
Painted River Rock
Artificially Coated Sedimentary Rock
sedimentary
Granite
Intrusive Igneous Rock
igneous
Rounded granite pebble
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica
igneous
Not a geological specimen
N/A (man-made object)
N/A
Not a rock, mineral, or geological specimen
N/A
Granite
Intrusive igneous rock
igneous
Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
metamorphic
Sedimentary Pebble
Sedimentary Rock Fragment
sedimentary
Likely pink granite pebble
Granite, a coarse-grained felsic intrusive rock (typically quartz, feldspar, and mica)
igneous
Quartz with inclusions (likely Chlorite or Hornblende) and country rock
SiO2 (Quartz) with associated ferromagnesian minerals
Mineral/Igneous/Metamorphic association
Granite
Phaneritic Intrusive Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite
Intrusive Igneous Rock (Felsic)
igneous
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
This appears to be a man-made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen.
Rounded pebble, likely mixed lithology
Lithology uncertain; possibly a fine-grained metamorphic or volcanic rock with a quartz-rich/pink feldspar vein or inclusion
sedimentary
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within metamorphic/igneous matrix
igneous/metamorphic
Weathered granite or granitic pebble
Granite; primarily quartz (SiO₂), feldspar, and mica/amphibole
igneous
Weathered quartz-rich rock fragment
Indeterminate; likely quartz-bearing granitoid or quartzite
mineral
Granite
Intrusive Igneous Rock (Felsic)
igneous
Rounded pebble, likely fine-grained river stone
Unidentified lithic pebble; composition cannot be determined from the image
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Druzy Quartz (part of a Geode)
Silicon Dioxide (SiO2)
mineral
Fossiliferous limestone with a fossil sea urchin
Bioclastic limestone containing an echinoid fossil (class Echinoidea)
sedimentary
Hag Stone
Perforated Sedimentary Rock
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Biotite Mica
Biotite (K(Mg,Fe)3(AlSi3O10)(F,OH)2)
mineral
Granite
Intrusive Igneous Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous