Ferrochrome Slag
Industrial Glassy Slag (Fe-Cr alloy byproduct)
Antropogenic (Man-made industrial byproduct)
Category
Man Made Object (Ring)
Browse man made object (ring) specimens identified by the Rock Identifier community.
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Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Man-made rock-like material
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
not a natural rock (man-made composite)
Slag Glass (Cullet)
Amorphous Silica / Glass residue
Man-made byproduct (Non-geological)
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Synthetic Costume Glove (Paws)
Polyethylene terephthalate (Polyester) & Polyurethane blend
Non-geological / Man-made textile
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Tumbled red jasper
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides
mineral
Rose quartz
Quartz (silicon dioxide, SiO₂), pink massive variety
mineral
Polished green aventurine (probable)
Quartz, SiO₂, with green fuchsite or chlorite inclusions
mineral
Polished agate (likely fire agate or carnelian-bearing agate)
Microcrystalline quartz, SiO₂; chalcedony with iron-oxide inclusions
gemstone
Tumbled brown chalcedony (possibly carnelian or jasper)
Microcrystalline quartz, SiO₂; likely iron-stained chalcedony
mineral
Milky quartz
Quartz, silicon dioxide (SiO₂)
mineral
Polished red jasper
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides.
mineral
Carnelian (orange chalcedony)
Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety
gemstone
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
mineral
Polished Ocean Jasper
Silicon Dioxide (Chalcedony/Quartz), SiO2
gemstone
Argillite / Mudstone
Argillaceous sedimentary rock
sedimentary
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
mineral
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Yellow jasper or polished yellow chalcedony
Microcrystalline quartz, SiO₂, likely iron-stained jasper/chalcedony
mineral
Carnelian (red chalcedony)
Chalcedony, microcrystalline quartz (SiO₂), iron-oxide colored
gemstone
Red jasper (likely hematite-rich jasper)
Microcrystalline quartz (SiO₂) with iron oxides, chiefly hematite (Fe₂O₃)
mineral
Brown chalcedony (likely carnelian/iron-stained quartz)
Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides
mineral
Brecciated agate/chalcedony
Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz and iron-oxide inclusions
mineral
Tumbled zebra stone, likely zebra marble or banded calcite
Zebra marble (recrystallized calcite, CaCO₃), possibly black-and-white banded calcite
metamorphic
Polished labradorite cabochon
Labradorite, a calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈
mineral
Green aventurine quartz sphere
Quartz, SiO₂, with fuchsite or other green mica inclusions
mineral
Polished jasper pebble
Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities
metamorphic
Orange chalcedony (likely carnelian), polished shard
Microcrystalline quartz, SiO₂; chalcedony variety, orange iron-oxide coloration
gemstone
Polished yellow-orange chalcedony (likely carnelian)
Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety commonly called carnelian
gemstone
Larvikite
Monzonite / Anorthosite (Igneous Rock)
igneous
Red Jasper
Silicon Dioxide with iron impurities (Quartz variety, SiO2)
sedimentary
Porphyry
Porphyritic Igneous Rock
igneous
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Greenstone / Serpentinite
Serpentine-group / Altered Mafic Rock
metamorphic
Banded Calcite Spheres (Honey Onyx)
Calcite (CaCO3)
sedimentary
Fancy Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary