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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.




Chemical Properties of Serpentine Subgroup

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

Synonyms of Serpentine Subgroup

Other Language Names for Serpentine Subgroup

Varieties of Serpentine Subgroup

Bastite

Name for pseudomorphs of serpentine group minerals after enstatite

Infinite

Light-green serpentine with bands of white chrysotile.

Marmolite

Light green pearly serpentine which may show a somewhat laminated fracture pattern.

Ni-Serpentine

A name for artificial Serpentine Group minerals with Ni replacing Mg. - Essentially Ni rich antigorite or amesite.

Nickeliferous Serpentine

A nickel-bearing variety of serpentine.

Pelhamine
Picrolite

Columnar or coarsely fibrous (non-asbestiform) variety of serpentine, commonly referred to as a variety of antigorite but may be other species.

Radiotine

A name for serpentine occurring in spherical aggregates of radiating fibers.

Retinalite

Honey yellow to light green, massive, sometimes gem-quality, serpentine.

Ricolite

A variety of serpentine interbanded with talc.

Serpentinasbest

Asbestiform varieties of "serpentine", i.e., members of the serpentine group (usually chrysotile).

Serpentine Jade

A 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 Species

Other Members of this group:
DickiteAl2(Si2O5)(OH)4
Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
HalloysiteAl2(Si2O5)(OH)4
KaoliniteAl2(Si2O5)(OH)4
ManandoniteLi2Al4(Si2AlB)O10(OH)8
NacriteAl2(Si2O5)(OH)4
Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Group Members:
Amesite Mg2Al(AlSiO5)(OH)4
Antigorite Mg3(Si2O5)(OH)4
Baumite (Mg,Al,Mn,Zn,Fe)3(Si,Al)2O5(OH)4
Berthierine (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4
Brindleyite (Ni,Al)3(Si,Al)2O5(OH)4
Caryopilite Mn2+3Si2O5(OH)4
Chrysotile Mg3(Si2O5)(OH)4
  Clinochrysotile 
  Orthochrysotile 
  Parachrysotile 
Cronstedtite Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Fraipontite (Zn,Al)3((Si,Al)2O5)(OH)4
Kellyite Mn2+2Al(AlSiO5)(OH)4
Lizardite Mg3(Si2O5)(OH)4
Népouite (Ni,Mg)3(Si2O5)(OH)4
Pecoraite Ni3(Si2O5)(OH)4

Other Information

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 petrology

Common component of (items highlighted in red)

References for Serpentine Subgroup

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zussman, J., Brindley, G.W., Comer, J.J. (1957) Electron diffraction studies of serpentine minerals. American Mineralogist: 42: 133-153.
Page, N.J., 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., Zussman, J. (1971) The serpentine minerals. In: The Electron-Optical Investigation of Clays. (J.A. Gard, ed.) Mineral. Soc. Monograph 3: 159-191.
Sunagawa, I., Koshino, Y. (1975) Growth Spiral on Kaolin Group Minerals. American Mineralogist: 60: 407-412.
Wicks, F.J., Whittaker, E.J.W. (1975) A reappraisal of the structures of the serpentine minerals. The Canadian Mineralogist: 13: 227-243.
Wicks, F.J., 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., 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., 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., 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., 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., Guyot, F. (2004) High-pressure behaviour of serpentine minerals: a Raman spectroscopic study. Physics and Chemistry of Minerals: 31: 269-277.
Baronnet, A., 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., Bish, D.L. (2014) Kaolin-group minerals: From hydrogen-bonded layers to environmental recorders. Elements: 10: 183-188.

Internet Links for Serpentine Subgroup

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https://www.mindat.org/min-11135.html
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Specimens:
The following Serpentine Subgroup specimens are currently listed for sale on minfind.com.

Localities for Serpentine Subgroup

Mineral and/or Locality  
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