Metamorphic Rock (Formed From A Fibrous Crocidolite Asbestos)

Serpentinite

Serpentinite (Mg3Si2O5(OH)4)

Serpentinite

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

Serpentine

Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Serpentinite

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

Serpentine

(Mg,Fe)3Si2O5(OH)4

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, Chrysotile)

Tiger’s-eye bracelet/bead segment

Chatoyant quartz (SiO₂), likely brown tiger’s-eye with iron-oxide alteration

Tiger’s eye

Chatoyant quartz (fibrous quartz pseudomorph after crocidolite), SiO₂

Tiger’s-eye fragment

Chatoyant quartz, SiO₂, with pseudomorphic iron-oxide fibers

Greenstone / altered mafic rock

Likely serpentinite or chlorite-rich metabasalt; exact identification requires testing

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Polished tiger’s-eye

Quartz (SiO₂), chatoyant fibrous variety; commonly golden-brown tiger’s-eye

Tumbled tiger’s-eye

Quartz variety, chiefly fibrous chalcedony pseudomorph after crocidolite; SiO₂

Red Tiger's Eye

Silicified Crocidolite (SiO2 with iron oxide inclusions)

Serpentinite

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

Serpentinite

Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)

Serpentine

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

Serpentinite

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

Tiger's Eye

Titanium-containing Quartz (Silica: SiO2)

Likely tiger’s-eye rough fragment

Tiger’s-eye (quartz, SiO₂, with fibrous crocidolite-derived inclusions)

Serpentinite

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

Polished tiger’s-eye

Quartz variety, chiefly fibrous quartz (SiO₂), with iron-oxide inclusions

Likely serpentinite

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

Serpentinite

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

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group)

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite

Serpentine (likely antigorite-rich serpentinite)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible talc, magnesite, and chlorite

Serpentinite

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

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)

Serpentinite

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

Dark veined metamorphic rock, likely serpentinite

Serpentinite; predominantly serpentine-group minerals, possibly with magnesite or calcite veins

Serpentinite

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

Serpentine

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

Blue Quartz

Silicon Dioxide (SiO2) with microscopic inclusions

Serpentinite

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

Serpentinite

Serpentinite (Hydrous magnesium iron phyllosilicate)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Tumbled tiger’s-eye (likely iron-stained quartz)

Quartz, SiO₂, with fibrous crocidolite pseudomorphed by iron oxides

Tiger’s eye

Quartz variety, primarily silicon dioxide (SiO₂); fibrous quartz pseudomorph after crocidolite asbestos

Tumbled tiger’s-eye

Tiger’s-eye quartz, microcrystalline SiO₂ with fibrous crocidolite pseudomorphs

Tiger's Eye

Pseudomorph of quartz after crocidolite (SiO2 with iron inclusions)

Tumbled tiger’s eye

Tiger’s eye (chatoyant quartz), SiO₂ with fibrous crocidolite pseudomorphs