Mindat Logo

Wollastonite-2M

This page is currently not sponsored. Click here to sponsor this page.



Formula:
CaSiO
 
3
System:MonoclinicColour: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

Dana 8th edition ID:65.2.1.1b

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
2 : Single-Width Unbranched Chains, W=1 with chains P=3
Hey's CIM Ref.: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

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

Crystallography of Wollastonite-2M

Crystal System:Monoclinic

Chemical Properties of Wollastonite-2M

Formula:
CaSiO
 
3
Simplified for copy/paste:CaSiO3
Essential elements:Ca, O, Si
All elements listed in formula:Ca, O, Si

Relationship of Wollastonite-2M to other Species

Related Minerals - Hey's Index Grouping:

- +
14.5.1Wollastonite
CaSiO
 
3
14.5.2Wollastonite-7T
14.5.4Rankinite
Ca
 
3
Si
 
2
O
 
7
14.5.5Kilchoanite
Ca
 
6
(SiO
 
4
)(Si
 
3
O
 
10
)
14.5.6Larnite
Ca
 
2
SiO
 
4
14.5.7Bredigite
Ca
 
7
Mg(SiO
 
4
)
 
4
14.5.8Hatrurite
Ca
 
3
(SiO
 
4
)O
14.5.9Rosenhahnite
HCa
 
3
[Si
 
3
O
 
9
(OH)]
14.5.10Dellaite
Ca
 
6
(Si
 
2
O
 
7
)(SiO
 
4
)(OH)
 
2
14.5.11Afwillite
Ca
 
3
(HSiO
 
4
)
 
2
· 2H
 
2
O
14.5.12Xonotlite
Ca
 
6
(Si
 
6
O
 
17
)(OH)
 
2
14.5.13Foshagite
Ca
 
4
(Si
 
3
O
 
9
)(OH)
 
2
14.5.14Hillebrandite
Ca
 
2
(SiO
 
3
)(OH)
 
2
14.5.15Jaffeite
Ca
 
6
(Si
 
2
O
 
7
)(OH)
 
6
14.5.16Suolunite
Ca
 
2
(H
 
2
Si
 
2
O
 
7
) · H
 
2
O
14.5.17Killalaite
Ca
 
6.4
(H
 
0.6
Si
 
2
O
 
7
)
 
2
(OH)
 
2
14.5.18Okenite
CaSi
 
2
O
 
5
· 2H
 
2
O
14.5.19Riversideite
Ca
 
5
(HSi
 
3
O
 
9
)
 
2
· 2H
 
2
O
14.5.20Trabzonite
Ca
 
4
(Si
 
3
O
 
10
) · 2H
 
2
O
14.5.21Gyrolite
NaCa
 
16
Si
 
23
AlO
 
60
(OH)
 
8
· 14H
 
2
O
14.5.22Foshallasite
Ca
 
3
[Si
 
2
O
 
7
] · 3H
 
2
O(?)
14.5.23Tobermorite
Ca
 
4+x
(H
 
2-2x
Si
 
6
O
 
17
) · 5H
 
2
O
14.5.24Clinotobermorite
Ca
 
5
(Si
 
6
O
 
17
) · 5H
 
2
O
14.5.25Nekoite
Ca
 
3
Si
 
6
O
 
15
·7H
 
2
O
14.5.26Plombièrite
Ca
 
5
(HSi
 
3
O
 
9
)
 
2
· 7H
 
2
O
14.5.27Jennite
Ca
 
9
(Si
 
3
O
 
9
)
 
2
(OH)
 
8
· 8H
 
2
O

Other Names for Wollastonite-2M

Other Languages:
Russian:Волластонит-2M

Other Information

Health Warning: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

Search Engines:
  • Look for Wollastonite-2M on Google
  • Look for Wollastonite-2M images on Google
  • Mineral Dealers:
  • Top quality minerals from Kristalle of California
  • The Arkenstone - Fine Minerals
  • Buy from David K Joyce minerals
  • Wollastonite-2M specimens for sale - minfind.com
  • Buy from McDougall Minerals
  • Buy RARE Minerals from Rocks of Africa
  • Fine minerals from bisbeeborn.com
  • Fine Minerals from Weinrich Minerals, Inc.
  • rare and unusual minerals mainly crystallized
  • Fine and rare minerals from mintreasure.com
  • Wilensky Fine Minerals
  • Lapis Mineral Magazin
  • Localities for Wollastonite-2M

    The 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. ? 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.
    • Trentino-Alto Adige
      • Trento Province
        • Ala
          • Pilcante
    (XRD analysis at Ispra Institute)
        • 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.
    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
    [[email protected]]
    Mineral and/or Locality  
    Search Google  
    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: June 19, 2014 14:50:13
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds