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Serpentine Subgroup

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Formula:
D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Name:
Serpentine was named in 1564 by Georgius Agricola (Georg Bauer) from the Latin "serpens" = snake in allusion to the mottled green appearance of the mineral suggesting the resemblance to some snakes.
Serpentine is a subgroup of the Kaolinite-Serpentine Group, usually with divalent cations dominating in octahedrally coordinated sites.
The most common species are all Mg-dominant: lizardite, chrysotile and antigorite.




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Chemical Properties of Serpentine SubgroupHide

Formula:
D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

Synonyms of Serpentine SubgroupHide

Other Language Names for Serpentine SubgroupHide

Varieties of Serpentine SubgroupHide

BastiteName for pseudomorphs of serpentine group minerals after enstatite
InfiniteSuperfluous trade name for a light-green serpentine with bands of white chrysotile.
MarmoliteLight green pearly serpentine which may show a somewhat laminated fracture pattern.
Ni-SerpentineA name for artificial Serpentine Group minerals with Ni replacing Mg. - Essentially Ni rich antigorite or amesite.
Nickeliferous SerpentineA nickel-bearing variety of serpentine.
Pelhamine
PicroliteColumnar or coarsely fibrous (non-asbestiform) variety of serpentine, commonly referred to as a variety of antigorite but may be other species.
RadiotineA name for serpentine occurring in spherical aggregates of radiating fibers.
RetinaliteHoney yellow to light green, massive, sometimes gem-quality, serpentine.
RicoliteA variety of serpentine interbanded with talc.
SerpentinasbestAsbestiform varieties of "serpentine", i.e., members of the serpentine group (usually chrysotile).
Serpentine JadeA dense cryptocristalline mixture of serpentine group minerals, mainly antigorite, chrysotile and lizardite, which is used for carving. It also contains a variety of minor impurities such as chlorite, ilmenite, magnetite and talc. Technically, this materi...

Relationship of Serpentine Subgroup to other SpeciesHide

Other Members of this group:
DickiteAl2(Si2O5)(OH)4Mon. m : Bb
Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4Mon.
HalloysiteAl2(Si2O5)(OH)4Mon. m : Bb
KaoliniteAl2(Si2O5)(OH)4Tric. 1 : P1
ManandoniteLi2Al4(Si2AlB)O10(OH)8Orth.
NacriteAl2(Si2O5)(OH)4Mon. m : Bb
Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4Mon. m : Bm
Group Members:
Amesite Mg2Al(AlSiO5)(OH)4Tric. 1 : P1
Antigorite Mg3(Si2O5)(OH)4Mon. m : Bm
Baumite (Mg,Al,Mn,Zn,Fe)3(Si,Al)2O5(OH)4
Berthierine (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
Brindleyite (Ni,Al)3(Si,Al)2O5(OH)4Mon.
Caryopilite Mn2+3Si2O5(OH)4Mon.
Chrysotile Mg3(Si2O5)(OH)4Mon.
  Orthochrysotile Orth.
  Parachrysotile Orth.
Cronstedtite Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4Trig. 3m : P3 1m
Fraipontite (Zn,Al)3((Si,Al)2O5)(OH)4Mon.
Guidottiite Mn2Fe3+(Fe3+SiO5)(OH)4Hex. 6 : P63
Kellyite Mn2+2Al(AlSiO5)(OH)4Hex.
Lizardite Mg3(Si2O5)(OH)4
Népouite (Ni,Mg)3(Si2O5)(OH)4Orth.
Pecoraite Ni3(Si2O5)(OH)4Mon.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Serpentine Subgroup in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

References for Serpentine SubgroupHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zussman, J., Brindley, G.W., and Comer, J.J. (1957) Electron diffraction studies of serpentine minerals. American Mineralogist: 42: 133-153.
Page, N.J. and Coleman, R.G. (1967) Serpentine mineral analyses and physical properties. USGS Professional Paper 575-B: 103-107.
Page, N.J. (1968) Chemical differences among the serpentine “polymorphs.” American Mineralogist: 53: 201-215.
Luce, R.W. (1971) Identification of serpentine varieties by infrared absorption: USGS Professional Paper 750-B: 199-201.
Whittaker, E.J.W. and Zussman, J. (1971) The serpentine minerals. In: The Electron-Optical Investigation of Clays. (J.A. Gard, ed.) Mineral. Soc. Monograph 3: 159-191.
Peacor, D.R., Essene, E.J., Simmons, W.B., Jr., and Bigelow, W.C. (1974) Kellyite, a new Mn-Al member of the serpentine group from Bald Knob, North Carolina, and new data on grovesite. American Mineralogist: 59: 1153-1156.
Sunagawa, I. and Koshino, Y. (1975) Growth Spiral on Kaolin Group Minerals. American Mineralogist: 60: 407-412.
Wicks, F.J. and Whittaker, E.J.W. (1975) A reappraisal of the structures of the serpentine minerals. Canadian Mineralogist: 13(3): 227-243.
Wicks, F.J. and O'Hanley, F.C. (1988) Serpentine minerals: Structures and petrology. In S.W. Bailey, Ed., Hydrous Phyllosilicates (exclusive of micas), 19, 91-159. Reviews in Mineralogy, Mineralogical Society of America, Chantilly, Virginia.
Wu, X.J., Li, F.H., and Hashimoto, H. (1989) High-resolution transmission electron microscopy study of the superstructure of Xiuyan Jade and Matterhorn serpentine. Acta Crystallographica: B45: 129-136.
Ulmer, P. and Trommsdorff, V. (1995) Serpentine stability to mantle depths and subduction-related magmatism. Science: 268: 858-861.
Irifune, T., Kuroda, K., Funamori, N., Uchida, T., Takehito, Y., Inoue, T., and Miyajima, N. (1996) Amorphization of serpentine at high pressure and high temperature. Science: 272: 1468-1470.
Auzende, A.L., Devouard, B., Guillot, S., Daniel, I., Baronnet, A., and Lardeaux, J.M. (2002) Serpentinites from Central Cuba: petrology and HRTEM study. European Journal of Mineralogy: 14: 905-914.
Auzende, A.L., Daniel, I., Reynard, B., Lemaire, C., and Guyot, F. (2004) High-pressure behaviour of serpentine minerals: a Raman spectroscopic study. Physics and Chemistry of Minerals: 31: 269-277.
Baronnet, A. and Devouard, B. (2005) Microstructures of common polygonal serpentines from axial HRTEM imaging, electron diffraction and simulation data. The Canadian Mineralogist: 43: 513-542.
Balan, E., Calas, G., and Bish, D.L. (2014) Kaolin-group minerals: From hydrogen-bonded layers to environmental recorders. Elements: 10: 183-188.

Internet Links for Serpentine SubgroupHide

Localities for Serpentine SubgroupHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListShow