Metamorphic Rock (Formed From A Fibrous Crocidolite Asbestos)

Serpentinite

Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)

Serpentine

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

Serpentinite

Serpentinite (complex of lizardite, chrysotile, and antigorite: (Mg,Fe)3Si2O5(OH)4)

Serpentine

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

Serpentine

Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4

Serpentine

Serpentinite (group of minerals: (Mg,Fe,Ni,Al)3Si2O5(OH)4)

Tiger's Eye (with Hematite/Jasper)

SiO2 (Silicon Dioxide) with Fe2O3 (Hematite)

Serpentinite

Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)

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

Blue Quartz (Dumortierite Quartz)

SiO2 containing inclusions of Dumortierite [Al7(BO3)(SiO4)3O3]

Blue Quartz (or Blue Aventurine)

Silicon Dioxide (SiO2) with inclusions (typically Crocidolite or Dumortierite)

Weathered greenish metamorphic rock, likely serpentinite

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

Greenish quartz-bearing rock, possibly serpentine or aventurine

Tentatively quartz (SiO₂) with green inclusions; exact identification requires testing

Dark green metamorphic rock, likely serpentinite

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

Serpentine (likely serpentinite)

Serpentinite, composed mainly of serpentine-group minerals such as lizardite, antigorite, or chrysotile; exact identification cannot be confirmed from the image alone.

Polished serpentine or serpentinite pebble

Serpentinite; principally serpentine-group minerals (antigorite, lizardite, chrysotile), Mg₃Si₂O₅(OH)₄

Serpentinite (likely)

Serpentinite; chiefly serpentine-group minerals (antigorite, lizardite, chrysotile), commonly after peridotite

Polished bronzite-rich serpentinized rock

Serpentinite or serpentinized peridotite, likely containing bronzite (orthopyroxene) and magnetite

Weathered green-gray stone, likely serpentinite or chlorite-rich metamorphic rock

Probable serpentinite (antigorite–lizardite), possibly chlorite schist or altered basalt

Serpentine

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

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Tumbled serpentine-rich altered rock

Serpentinite, likely antigorite/lizardite with accessory carbonate, quartz, or iron oxides

Serpentine-rich rock (possibly lizardite/serpentinite)

Serpentinite, composed chiefly of serpentine-group minerals such as lizardite, antigorite, or chrysotile

Tumbled yellow-green pebble, likely serpentine or quartzite

Provisional: serpentine-group rock, chiefly Mg₃Si₂O₅(OH)₄; exact identification requires testing

Nephrite Jade

Tremolite-Actinolite solid solution series, Ca2(Mg,Fe)5Si8O22(OH)2

Greenstone / serpentinite-like metamorphic rock

Probable serpentinite-rich greenschist; commonly dominated by serpentine-group minerals, chlorite, actinolite, and magnetite

Tumbled brown feldspar-rich rock, possibly tiger’s-eye or brecciated quartz

Indeterminate from image; likely quartz (SiO₂) with iron-stained feldspar or amphibole

Rounded green-gray stone, likely serpentinite or altered basalt

Serpentinite (antigorite/lizardite-rich), possibly serpentinized ultramafic rock

Serpentine-rich altered ultramafic rock

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

Serpentinized ultramafic rock with chromite

Serpentinite; chiefly serpentine-group minerals, Mg-rich silicates, with probable chromite and minor magnetite

Rounded greenstone pebble

Likely serpentinite or chlorite-rich metamorphic rock; exact identification requires testing

Serpentine

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

Serpentine

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

Likely schist, possibly serpentinite

Mica schist; potential chlorite–serpentine-rich metamorphic rock

Pale green rounded boulder, likely altered serpentinite or greenstone

Probable serpentinized ultramafic rock; exact identification requires testing

Likely serpentinite or chlorite-rich metamorphic rock

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

Serpentine

Serpentinite (group of hydrous magnesium iron phyllosilicate minerals, e.g., Lizardite, Antigorite)

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Serpentine

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

Serpentinite

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

Greenstone / Serpentinite

Serpentine-group / Altered Mafic Rock