Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Orthochrysotile

This page is currently not sponsored. Click here to sponsor this page.
System:
Orthorhombic
Hardness:
2½ - 3
Name:
Named in 1951 by Eric James William Whittaker for being an orthorhombic chrysotile.
A polytype of Chrysotile

Originally described from Cuddapah, Chennai (Madras), Andhra Pradesh, India.

Classification of Orthochrysotile

Discredited 2006
Explanation of status:
A polytype of chrysotile
8/H.27-40

8 : Silicates
H : Phyllosilicates (layered), Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others
27 : Serpentine group
14.4.6

14 : Silicates not Containing Aluminum
4 : Silicates of Mg
mindat.org URL:
http://www.mindat.org/min-3025.html
Please feel free to link to this page.

Physical Properties of Orthochrysotile

Hardness (Mohs):
2½ - 3

Crystallography of Orthochrysotile

Crystal System:
Orthorhombic
Cell Parameters:
a = 5.34Å, b = 9.24Å, c = 14.2Å
Ratio:
a:b:c = 0.578 : 1 : 1.537
Unit Cell Volume:
V 700.65 ų (Calculated from Unit Cell)

Optical Data of Orthochrysotile

Type:
Biaxial (-)
RI values:
nα = 1.545 - 1.569 nβ = 1.546 - 1.569 nγ = 1.553 - 1.571
2V:
Measured: 20° to 60°
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
relatively weak

Relationship of Orthochrysotile to other Species

Other Members of Group:
AmesiteMg2Al(AlSiO5)(OH)4
AntigoriteMg3(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(Mn,Mg)3(Si2O5)(OH)4
ChrysotileMg3(Si2O5)(OH)4
Clinochrysotile
CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
DickiteAl2(Si2O5)(OH)4
Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4
GreenaliteFe2-3(Si2O5)(OH)4
HalloysiteAl2(Si2O5)(OH)4
KaoliniteAl2(Si2O5)(OH)4
KellyiteMn22+Al(AlSiO5)(OH)4
LizarditeMg3(Si2O5)(OH)4
ManandoniteLi2Al4(Si2AlB)O10(OH)8
NacriteAl2(Si2O5)(OH)4
Népouite(Ni,Mg)3(Si2O5)(OH)4
Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Parachrysotile
PecoraiteNi3(Si2O5)(OH)4
Webskyite
8/H.27-10AntigoriteMg3(Si2O5)(OH)4
8/H.27-20LizarditeMg3(Si2O5)(OH)4
8/H.27-50Parachrysotile
8/H.27-55Caryopilite(Mn,Mg)3(Si2O5)(OH)4
8/H.27-60GreenaliteFe2-3(Si2O5)(OH)4
8/H.27-70Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4
8/H.27-80Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4
8/H.27-95DozyiteMg7Al2(Al2Si4O15)(OH)12
8/H.27-100AmesiteMg2Al(AlSiO5)(OH)4
8/H.27-110KellyiteMn22+Al(AlSiO5)(OH)4
8/H.27-120CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
8/H.27-140Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)
8/H.27-150Népouite(Ni,Mg)3(Si2O5)(OH)4
8/H.27-160PecoraiteNi3(Si2O5)(OH)4
8/H.27-170Brindleyite(Ni,Al)3(Si,Al)2O5(OH)4
8/H.27-190Carlosturanite(Mg,Fe,Ti)21(Si,Al)12O28(OH)34•H2O
14.4.1ForsteriteMg2SiO4
14.4.2EnstatiteMgSiO3
14.4.3ClinoenstatiteMgSiO3
14.4.4ChrysotileMg3(Si2O5)(OH)4
14.4.5Clinochrysotile
14.4.7Parachrysotile
14.4.8LizarditeMg3(Si2O5)(OH)4
14.4.9TalcMg3(Si4O10)(OH)2
14.4.10SpadaiteMgSiO2(OH)2 · H2O (?)
14.4.11SepioliteMg4(Si6O15)(OH)2 · 6H2O
14.4.12LoughliniteNa2Mg3Si6O16 · 8H2O
14.4.13EifeliteKNa3Mg4Si12O30
14.4.14Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
14.4.15AntigoriteMg3(Si2O5)(OH)4
14.4.16 Magnesio-anthophyllite

Other Names for Orthochrysotile

Name in Other Languages:

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.

References for Orthochrysotile

Reference List:
Whittaker, E.J.W. (1956b) The structure of chrysotile . III. Orthochrysotile. Acta Crystallographica: 9: 862-864.

Internet Links for Orthochrysotile

Localities for Orthochrysotile

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Canada
 
  • Québec
    • Estrie
      • Les Sources RCM
        • Asbestos
Van King
China
 
  • Jilin Province (Manchuria; Dongbei Region)
    • Tonghua Prefecture
      • Ji'an Co.
Youqin Li, Shaoying Jiang, and Wenwei Fan (1981): Chinese Journal of Geology 24(3)
India
 
  • Andhra Pradesh
    • YSR District (Cuddapah District)
Rev. Min. (1988), 91
Japan
 
  • Honshu Island
    • Chugoku Region
      • Yamaguchi Prefecture
        • Iwakuni City
          • Nishiki-cho
Motoiki Saito (1973) Some serpentine minerals occurring in Yamaguchi prefecture, Japan. Journal of Science of the Hiroshima University, series C, 7, 21-36.
            • Mitake
Motoiki Saito (1973) Some serpentine minerals occurring in Yamaguchi prefecture, Japan. Journal of Science of the Hiroshima University, series C, 7, 21-36.
Norway
 
  • Buskerud
    • Kongsberg
Bancroft, P., Nordrum, F.S. & Lyckberg, P.(2001): Kongsberg revisited. Mineralogical Record 32: 181-205
Swaziland
 
  • Hhohho District
    • Bulembu (Havelock)
Canadian Mineralogist (1979) 17:679-691
Sweden
 
  • Småland
    • Jönköping
      • Månsarp
Hans Thulin
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Albula Valley
      • Landwasser Valley
        • Davos
          • Wolfgang
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 114-115.
USA
 
  • Arizona
    • Gila Co.
      • Fort Apache Indian Reservation
        • Salt River
Tony Nikischer
      • Salt River District
        • Chrysotile area
Tony Nikischer
  • California
    • Calaveras Co.
      • West Belt
    • San Francisco Co.
Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.: 58; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 424.
  • Nevada
    • Eureka Co.
NBMG Spec. Pub. 31 Minerals of Nevada
    • Nye Co.
      • Paradise Range
        • Gabbs District
          • Gabbs
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
Dunn(1995):Pt4:485.
  • Vermont
    • Orleans & Lamoille Cos.
      • Lowell & Eden
Chidester, A.H., Albee, A.L., and Cady, W.M., (1978). Petrology, structure and genesis of the asbestos-bearing ultramafic rocks of the Belvidere Mountain area in Vermont: U.S. Geologic Survey Professional Paper 1016
Mineral and/or Locality  
Copyright © mindat.org 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 4, 2015 15:17:49 Page generated: March 2, 2015 07:39:04