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

Wollastonite-2M

This page is currently not sponsored. Click here to sponsor this page.
Formula:
CaSiO3
System:
Monoclinic
Colour:
White
Hardness:
5
Name:
Named after William Hyde Wollaston (1766-1828), english chemist and mineralogist who discovered palladium (1804) and rhodium (1809) and invented the reflecting goniometer (1809) and the camera lucida (1812).
A polytype of Wollastonite

Classification of Wollastonite-2M

65.2.1.1b

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
2 : Single-Width Unbranched Chains, W=1 with chains P=3
14.5.3

14 : Silicates not Containing Aluminum
5 : Silicates of Ca
mindat.org URL:
http://www.mindat.org/min-4306.html
Please feel free to link to this page.

Physical Properties of Wollastonite-2M

Vitreous, Silky
Colour:
White
Streak:
White
Hardness (Mohs):
5

Crystallography of Wollastonite-2M

Crystal System:
Monoclinic

Chemical Properties of Wollastonite-2M

Formula:
CaSiO3
Essential elements:
All elements listed in formula:

Relationship of Wollastonite-2M to other Species

14.5.1WollastoniteCaSiO3
14.5.2Wollastonite-7T
14.5.4RankiniteCa3Si2O7
14.5.5KilchoaniteCa6(SiO4)(Si3O10)
14.5.6LarniteCa2SiO4
14.5.7BredigiteCa7Mg(SiO4)4
14.5.8HatruriteCa3(SiO4)O
14.5.9RosenhahniteHCa3[Si3O9(OH)]
14.5.10DellaiteCa6(Si2O7)(SiO4)(OH)2
14.5.11AfwilliteCa3(HSiO4)2 · 2H2O
14.5.12XonotliteCa6(Si6O17)(OH)2
14.5.13FoshagiteCa4(Si3O9)(OH)2
14.5.14HillebranditeCa2(SiO3)(OH)2
14.5.15JaffeiteCa6(Si2O7)(OH)6
14.5.16SuoluniteCa2(H2Si2O7) · H2O
14.5.17KillalaiteCa6.4(H0.6Si2O7)2(OH)2
14.5.18OkeniteCaSi2O5 · 2H2O
14.5.19RiversideiteCa5(HSi3O9)2 · 2H2O
14.5.20TrabzoniteCa4(Si3O10) · 2H2O
14.5.21GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
14.5.22FoshallasiteCa3[Si2O7] · 3H2O(?)
14.5.23Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
14.5.24Clinotobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
14.5.25NekoiteCa3Si6O15·7H2O
14.5.26Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)
14.5.27JenniteCa9(Si3O9)2(OH)8 · 8H2O

Other Names for Wollastonite-2M

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 Wollastonite-2M

Reference List:
American Journal of Science (1935), 230, 495.

Hesse, K.F. (1984) Refinement of the crystal structure of wollastonite-2M (parawollastonite). Zeitschrift für Kristallographie: 168: 93-98.

Seto, Y., Ohi, S., Shimobayashi, N., Kitamura, M., Miyake, A., Hiroi, Y., and Grantham, G.H. (2006) Clinopyroxene exsolution in wollastonite from Namaqualand granulite, South Africa. American Mineralogist: 91: 446-450.

Internet Links for Wollastonite-2M

Localities for Wollastonite-2M

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.
China
 
  • Anhui Province
    • Tongling Prefecture
      • Shizishan ore field
Zongxun Chen (1986): Acta Petrologica et Mineralogica 5(2), 168-170
Italy
 
  • Campania
    • Naples Province
      • Somma-Vesuvius Complex
www.dinet.it/Mineral-GMC/AMI/vesuvio.html.
  • Lombardy
    • Sondrio Province
      • Valtellina
        • Tresivio
Bedognè, F., Montrasio, A., Sciesa, E. (2006) I minerali della media-alta Valtellina, delle Orobie valtellinesi e della Val Poschiavo. Aggiornamenti sulle altre località della provincia di Sondrio. Bettini, Sondrio, 255 pp.
  • Trentino-Alto Adige
    • Trento Province
      • Fiemme Valley
Demartin, F., Campostrini, I., Grisotto, M., & Grisotto, L. (2006). I Canzoccoli. Una località classica presso Predazzo, Val di Fiemme, Trento. Rivista Mineralogica Italiana, 30(3), 166-177.
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Lagarina Valley
        • Mt. Baldo
          • Ala
            • Pilcante
(XRD analysis at Ispra Institute)
Malaysia
 
  • Borneo Island
    • Sarawak
      • Kuching
        • Bau
No reference listed
Mexico
 
  • Chihuahua
    • Pueblito de Allende
www.lpi.usra.edu/meetings/metsoc2002/pdf/5053.pdf.
USA
 
  • California
    • Riverside Co.
      • Crestmore
[micromounts@yahoogroups.com]
Mineral and/or Locality  
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 1993-2015, 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: April 27, 2015 01:25:35 Page generated: April 26, 2015 11:18:07