Metamorphic Rock (Formed From A Fibrous Crocidolite Asbestos)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Serpentinite

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

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Serpentine (possibly New Jade)

Serpentine group, Mg3Si2O5(OH)4

Tiger Iron

Banded Iron Formation (BIF)

Serpentinite

Serpentinite (Hydrated magnesium iron silicate)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, or Chrysotile)

Serpentine

Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4)

Tumbled red tiger’s eye

Tiger’s eye, a quartz variety (SiO₂) with iron-oxide-rich bands; possibly red-dyed or heat-treated

Serpentine

Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Serpentinite (likely serpentine-rich metamorphic rock)

Serpentine-group minerals, chiefly antigorite, lizardite, and/or chrysotile; commonly derived from altered peridotite

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Tumbled serpentinized ultramafic rock

Serpentinite, chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), with probable quartz/calcite veins and iron oxides

Serpentinite

Serpentinite (composed largely of serpentine minerals like antigorite, lizardite, or chrysotile)

Serpentine

Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4

Serpentinite

Serpentinite (composed mainly of Group: Serpentine; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Tumbled serpentine with dark magnetite/chromite matrix

Serpentinite; chiefly antigorite/lizardite, Mg3Si2O5(OH)4, with magnetite and possibly chromite

Greenstone, possibly serpentine or altered basalt

Serpentinite (Mg₃Si₂O₅(OH)₄) or chlorite-epidote altered basalt; identification is uncertain from the image

Likely tumbled tiger’s-eye

Quartz variety with fibrous crocidolite pseudomorphs (SiO₂)

Serpentine

Antigorite/Chrysotile/Lizardite mix - Mg3Si2O5(OH)4

Serpentine

Serpentine Group (primarily Antigorite or Lizardite), Mg3Si2O5(OH)4

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Rounded quartz-rich pebble

Likely microcrystalline quartz (chalcedony), possibly weathered quartzite

Tumbled serpentine

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

Serpentinite

Serpentinite (composed largely of Serpentine minerals such as Lizardite, Antigorite, and Chrysotile: Mg3Si2O5(OH)4)

Weathered quartz-bearing rock, possibly serpentine or altered ultramafic rock

Provisional identification: serpentinite or chlorite–quartz schist; exact composition requires testing

Serpentine

Antigorite/Chrysotile group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)

Serpentine

Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4

Veined metamorphic cobble, likely serpentinite

Serpentinite, commonly dominated by antigorite/lizardite with magnetite and cross-cutting quartz or calcite veins

Ruby in Zoisite

Anyolite (composite of Corundum and Zoisite)

Serpentinite

Serpentinite (containing minerals of the Serpentine subgroup: Antigorite, Lizardite, and Chrysotile; formula (Mg,Fe)3Si2O5(OH)4)

Serpentine

Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)

Serpentinite

Serpentinite (complex silicate minerals including Mg3Si2O5(OH)4)

Tumbled green stone, likely serpentine

Serpentine-group minerals, commonly antigorite or chrysotile; approximate composition Mg₃Si₂O₅(OH)₄

Serpentine (likely polished serpentine pebble)

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

Likely blue-green kyanite

Kyanite, Al₂SiO₅

Tumbled greenish quartzite or serpentine

Quartzite (mostly SiO₂) or serpentine-group rock

Greenstone / Serpentinite

Serpentinite (composed primarily of minerals from the serpentine group Mg3Si2O5(OH)4)

Serpentinite

Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, or Chrysotile)

Serpentinite (likely veined variety)

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