Rock Identifier

Category

Man Made Object (Metalwork)

Browse man made object (metalwork) specimens identified by the Rock Identifier community.

Learn about Man Made Object (Metalwork) in the encyclopedia

Opalite

Map Jasper

Goldstone

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Marl

Coquina

Dunite

Dalmatian Jasper

Dalmatian Jasper

Rock Gypsum

Green aventurine cabochon (likely) (Quartzite/aventurine quartz, predominantly SiO₂ with possible fuchsite mica) — gemstone

Green aventurine cabochon (likely)

Quartzite/aventurine quartz, predominantly SiO₂ with possible fuchsite mica

Amazonite (Microcline feldspar (KAlSi3O8)) — mineral

Amazonite

Microcline feldspar (KAlSi3O8)

Agate (Silicon dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon dioxide (Chalcedony), SiO2

Jasper (Silicon Dioxide (Microcrystalline Quartz), SiO2) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Orange chalcedony (likely carnelian) (Microcrystalline quartz, SiO₂; iron-bearing chalcedony (carnelian)) — gemstone

Orange chalcedony (likely carnelian)

Microcrystalline quartz, SiO₂; iron-bearing chalcedony (carnelian)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper and Quartz Breccia (Silica breccia (SiO2)) — sedimentary

Jasper and Quartz Breccia

Silica breccia (SiO2)

Petrified Wood (Silicified wood (Quartz/Chalcedony replacement)) — fossil

Petrified Wood

Silicified wood (Quartz/Chalcedony replacement)

Aventurine Quartz (Quartz with fuchsite inclusions (SiO2)) — mineral

Aventurine Quartz

Quartz with fuchsite inclusions (SiO2)

Agate Nodule (Silicon Dioxide (Quartz/Chalcedony), SiO2) — sedimentary

Agate Nodule

Silicon Dioxide (Quartz/Chalcedony), SiO2

Green Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Green Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Black Onyx (Chalcedony (SiO2)) — gemstone

Black Onyx

Chalcedony (SiO2)

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Imperial Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Imperial Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Labradorite ((Ca,Na)(Al,Si)4O8) — mineral

Labradorite

(Ca,Na)(Al,Si)4O8

Tumbled jasper, likely picture or brecciated jasper (Microcrystalline quartz (SiO₂) with iron-oxide and other mineral impurities) — gemstone

Tumbled jasper, likely picture or brecciated jasper

Microcrystalline quartz (SiO₂) with iron-oxide and other mineral impurities

Blue-dyed magnesite beads (often sold as “turquoise howlite”) (Magnesite, MgCO₃; commonly dyed blue and possibly marketed as dyed howlite, Ca₂B₅SiO₉(OH)₅) — mineral

Blue-dyed magnesite beads (often sold as “turquoise howlite”)

Magnesite, MgCO₃; commonly dyed blue and possibly marketed as dyed howlite, Ca₂B₅SiO₉(OH)₅

Graphic Granite (or Pegmatite with Tourmaline/Biotite) (Alkali-feldspar granite pegmatite) — igneous

Graphic Granite (or Pegmatite with Tourmaline/Biotite)

Alkali-feldspar granite pegmatite

Petrified Wood (Silicified Wood (Permineralized organic matter, głównie $SiO_2$)) — fossil

Petrified Wood

Silicified Wood (Permineralized organic matter, głównie $SiO_2$)

Green Aventurine (Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions) — mineral

Green Aventurine

Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Brecciated Jasper (Silicon Dioxide (SiO2) with hematite and other mineral impurities) — sedimentary

Brecciated Jasper

Silicon Dioxide (SiO2) with hematite and other mineral impurities

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Agate (Silica (Chalcedony), SiO2) — sedimentary

Agate

Silica (Chalcedony), SiO2

Jasper and Agate (Polychrome Jasper / Mookaite variety) (Silicon dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper and Agate (Polychrome Jasper / Mookaite variety)

Silicon dioxide (SiO2) microcrystalline quartz

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Prehnite (Calcium aluminum silicate hydroxide, Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Calcium aluminum silicate hydroxide, Ca2Al(AlSi3O10)(OH)2

Unakite (Altered Granite (Granitic Metamorphic Rock)) — metamorphic

Unakite

Altered Granite (Granitic Metamorphic Rock)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Unakite (Metamorphosed Granite (Epidotized Feldspar and Quartz)) — metamorphic

Unakite

Metamorphosed Granite (Epidotized Feldspar and Quartz)

Labradorite (Small Tumbled or Water-Worn Fragment) ((Ca,Na)(Al,Si)4O8) — mineral

Labradorite (Small Tumbled or Water-Worn Fragment)

(Ca,Na)(Al,Si)4O8

Septarian Nodule (Septarian concretion (composition: Calcium carbonate, Aragonite, and Siderite/Baryte)) — sedimentary

Septarian Nodule

Septarian concretion (composition: Calcium carbonate, Aragonite, and Siderite/Baryte)

Amazonite (K(AlSi3O8) - Microcline Feldspar) — mineral

Amazonite

K(AlSi3O8) - Microcline Feldspar

Jasper (Jasper (Silicon Dioxide, SiO2)) — mineral

Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

Agate (SiO2) — Mineral

Agate

SiO2

Smoky Quartz (Silicon Dioxide (SiO2) with trace aluminum and irradiation) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with trace aluminum and irradiation

Sandstone (Pebble) (Arenite) — sedimentary

Sandstone (Pebble)

Arenite

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock