Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Orthochrysotile

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

Probably not uncommon polytype, but difficult to characterize as intermixed with the more common, monoclinic polytype clinocrysotile.

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


Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:
3025
Long-form identifier:
mindat:1:1:3025:6
GUID
(UUID V4):
811eeed8-da2a-4ad4-97d0-7917db1e278a

IMA Classification of OrthochrysotileHide

Discredited

Classification of OrthochrysotileHide

14.4.6

14 : Silicates not Containing Aluminum
4 : Silicates of Mg

Physical Properties of OrthochrysotileHide

Hardness:
2½ - 3 on Mohs scale

Optical Data of OrthochrysotileHide

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

Crystallography of OrthochrysotileHide

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

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.36 Å(100)
3.66 Å(80)
1.531 Å(65)
4.56 Å(50)
2.50 Å(50)
2.604 Å(40)
1.310 Å(40)

Other Language Names for OrthochrysotileHide

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.

Internet Links for OrthochrysotileHide

References for OrthochrysotileHide

Localities for OrthochrysotileHide

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 ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Canada
 
  • Québec
    • Estrie
      • Les Sources RCM
        • Val-des-Sources
China
 
  • Jilin
    • Tonghua
      • Ji'an Co.
East Timor
 
  • Manatuto District
Eswatini
 
  • Hhohho Region
    • Bulembu
Hungary
 
  • Pest County
    • Szentendre District
      • Dunabogdány
India
 
  • Andhra Pradesh
    • Rayalaseema Region
Japan
 
  • Kumamoto Prefecture
    • Yatsushiro City
  • Yamaguchi Prefecture
    • Iwakuni City
      • Nishiki-cho
        • Mitake
Norway
 
  • Buskerud
Poland
 
  • Lower Silesian Voivodeship
    • Karkonosze County
Sweden
 
  • Jönköping County
    • Jönköping
      • Månsarp
Switzerland
 
  • Grisons
    • Prättigau/Davos Region
      • Davos
        • Wolfgang
USA
 
  • Arizona
    • Gila County
      • Salt River Mining District
        • Chrysotile area
  • California
    • Calaveras County
      • West Belt
    • San Francisco County
  • Nevada
    • Eureka County
    • Nye County
      • Gabbs Mining District
        • Gabbs
  • New Jersey
    • Sussex County
  • Vermont
    • Orleans & Lamoille Cos.
      • Lowell & Eden
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 01:18:20 Page updated: January 6, 2024 15:10:48
Go to top of page