Metamorphic Rock (Formed From A Fibrous Crocidolite Asbestos)

Rounded dark river pebble, possibly serpentinite

Serpentinite (serpentine-group minerals; commonly lizardite/chrysotile/antigorite), identification tentative

Eagle\'s Eye (Grey Tiger\'s Eye)

Pseudomorph of Quartz after Crocidolite (SiO2)

Tumbled dark green stone, likely serpentinite or greenstone

Serpentinite (antigorite/lizardite-rich), or chlorite–amphibole greenstone

Blue-green serpentinite (likely copper-stained)

Serpentinite; chiefly serpentine-group minerals, commonly with malachite/chrysocolla or other copper minerals

Serpentinite

Serpentine group minerals ((Mg, Fe)3Si2O5(OH)4)

Polished serpentine (likely bowenite/antigorite)

Serpentine-group minerals, chiefly antigorite Mg₃Si₂O₅(OH)₄; possibly bowenite (massive antigorite)

Chatoyant Quartz (Cat's Eye Quartz)

Silicon Dioxide (SiO2) with fibrous inclusions of Amphibole or Rutile

Green serpentine-rich stone

Serpentine-group minerals, chiefly antigorite/lizardite; possibly nephrite or chlorite-bearing rock

Tumbled green stone, likely serpentine

Serpentine-group minerals, chiefly antigorite and/or lizardite; approximate formula Mg₃Si₂O₅(OH)₄

Serpentinite (likely polished/tumbled)

Serpentinite; chiefly antigorite, lizardite, and chrysotile-group serpentine minerals, commonly with magnetite and minor carbonate

Greenstone (likely serpentinite)

Serpentinite; mainly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite, chlorite, or other altered minerals

Blue Quartzite

Quartzite (primarily SiO2) with inclusions like Dumortierite or Crocidolite

Blue Quartz

Silicon Dioxide (SiO2) with fibrous inclusions (such as tourmaline, magnesio-riebbeckite, or crocidolite)

Serpentine

Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)

Serpentinite (probable)

Serpentinite; chiefly serpentine-group minerals, Mg3Si2O5(OH)4, with possible magnetite, chromite, and carbonate

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Serpentine

Serpentine Group Minerals (e.g., Antigorite, Chrysotile, Lizardite)

Blue Tiger's Eye

Hawk's Eye (Quartz pseudomorph over Crocidolite)

Greenstone, likely serpentinite

Serpentinite; predominantly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), possibly with chlorite, talc, magnetite, or antigorite

Likely serpentinite (serpentine-rich metamorphic rock)

Serpentinite, chiefly serpentine-group minerals (chrysotile, lizardite, antigorite), commonly with magnetite and minor talc/carbonate

Serpentinite (likely antigorite-rich)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite and minor chromite

Polished serpentine (likely lemon-yellow serpentine)

Serpentine-group minerals, chiefly antigorite/lizardite; approximate formula Mg₃Si₂O₅(OH)₄

Tumbled serpentine (likely antigorite-rich)

Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄

Rounded gray river pebble, likely fine-grained basalt or andesite

Basaltic-andesitic volcanic rock; commonly plagioclase feldspar, pyroxene, and minor iron oxides

Tiger iron

Banded iron formation (BIF), chiefly hematite/magnetite, jasper, and crocidolite or riebeckite quartz

Tiger's Eye

Quartz Pseudomorph (SiO2 with inclusions of Crocidolite)

Likely serpentine (serpentinite) pebble

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; commonly with magnetite and minor carbonate

Serpentine (likely antigorite-rich serpentinite)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite, chromite, or talc

Serpentine

Antigorite/Lizardite/Chrysotile group, Mg3Si2O5(OH)4

Serpentine (likely serpentine-rich pebble)

Serpentine-group minerals, chiefly antigorite and/or lizardite; commonly associated with magnetite and chlorite

Polished tiger iron

Tiger iron; interbanded jasper, hematite, and crocidolite/quartz

Serpentine

Serpentinite (rock), Serpentine group minerals (e.g., Antigorite, Lizardite, Chrysotile)

Tiger’s eye

Quartz (SiO₂) with fibrous crocidolite pseudomorphs and iron oxides

Serpentine

Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4

Polished tiger’s-eye

Tiger’s-eye, a quartz-rich variety of crocidolite pseudomorph (SiO₂ with iron oxides)

Tumbled serpentine (likely)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄

Likely serpentinite

Serpentinite, composed mainly of serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite and minor chromite

Serpentine

Serpentine group minerals (e.g., Antigorite, Chrysotile, Lizardite). Chemical formula: (Mg, Fe)₃Si₂O₅(OH)₄

Rounded gray-green stone, likely serpentinite

Serpentinite; chiefly serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite

Serpentinite (probable)

Serpentinite, dominated by serpentine-group minerals (chrysotile, lizardite, or antigorite), commonly with magnetite

Tumbled serpentinite (serpentine stone)

Serpentinite, dominated by serpentine-group minerals (lizardite, chrysotile, antigorite), commonly with magnetite and chromite

Polished serpentine (likely green serpentinite)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with magnetite and possible chromite or carbonate inclusions