Goldstone and pink quartz bead strands
Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible
Category
Browse sedimentary (imitation) specimens identified by the Rock Identifier community.
Goldstone and pink quartz bead strands
Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible
Jade
There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.
Ruby
Corundum (Al₂O₃) with Chromium (Cr)
Larimar
Pectolite (a variety of pectolite, NaCa2Si3O8(OH))
Diamond
Diamond (Carbon, C)
Amber
Fossilized Tree Resin (Amorphous Hydrocarbon)
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
Sandstone or Siltstone
Arenite (if sandstone)
Quartz pebble
Silicon dioxide (SiO2)
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
Sedimentary Sandstone
Arenite (Sedimentary Rock)
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
Shale
Shale (clastic sedimentary rock)
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
Shale
Sedimentary Shale
Shale and Pebble Fragment
Sedimentary Rock (Mudstone/Shale with Silica Pebble)
Shale
Argillaceous sedimentary rock
Mudstone
Argillite / Siliciclastic sedimentary rock
Shale fragment
Shale (clay mineral rich sedimentary rock)
Shale / Mudstone
Sedimentary rock (Claystone / Mudstone / Shale)
Brown Sandstone (River Rock)
Arenite
Sandstone
Clastic Sedimentary Rock
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Shale or Slaty Mudstone
Argillaceous sedimentary rock
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
Siltstone / Slate
Siltstone / Low-grade Slate
Sandstone pebble
Sandstone (mainly Quartz, SiO2)
Sandstone
Arenite
Sandstone
Arenite (primarily SiO2)
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
Fossil Assortment and Geological Specimens
Various (including Ammonoidea)
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
Conglomerate (Quartz Pebble Conglomerate)
Quartz Pebble Conglomerate
Sandstone or Mudstone
Sedimentary Rock
Shale / Mudstone
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Sandstone
Arenite
Sandstone (Quartz-rich)
Arenite (SiO2)