Mindat Logo

Clinoenstatite

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



Formula:
MgSiO
 
3
System:MonoclinicColour:Colourless, greenish ...
Lustre:VitreousHardness:5 - 6
Member of:Clinopyroxene Subgroup > Pyroxene Group
Polymorph of:Akimotoite, Enstatite
Isostructural with:Ferrosilite

Classification of Clinoenstatite

IMA status:Approved
Strunz 8th edition ID:8/F.01-10
Nickel-Strunz 10th (pending) edition ID:9.DA.10

9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family
Dana 8th edition ID:65.1.1.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
Hey's CIM Ref.:14.4.3

14 : Silicates not Containing Aluminum
4 : Silicates of Mg
mindat.org URL:http://www.mindat.org/min-1072.html
Please feel free to link to this page.

Physical Properties of Clinoenstatite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colourless, greenish yellow, yellowish brown, green-brown
Streak:White
Hardness (Mohs):5 - 6
Cleavage:Distinct/Good

Crystallography of Clinoenstatite

Crystal System:Monoclinic
Cell Parameters:a = 9.6Å, b = 8.81Å, c = 5.17Å
β = 108.28°
Ratio:a:b:c = 1.09 : 1 : 0.587
Unit Cell Volume:V 415.19 ų (Calculated from Unit Cell)

Optical Data of Clinoenstatite

Type:Biaxial (+)
RI values: nα = 1.651 nβ = 1.654 nγ = 1.660
Maximum Birefringence:δ = 0.009

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:strong

Chemical Properties of Clinoenstatite

Formula:
MgSiO
 
3
Simplified for copy/paste:MgSiO3
Essential elements:Mg, O, Si
All elements listed in formula:Mg, O, Si
Common Impurities:Ti,Al,Cr,Fe,Mn,Ca,Na

Relationship of Clinoenstatite to other Species

Member of:Clinopyroxene Subgroup > Pyroxene Group
Other Members of Group:

- +
Aegirine
NaFe
3+
 
Si
 
2
O
 
6
Augite
(Ca,Na)(Mg,Fe
2+
 
,Al,Fe
3+
 
,Ti)[(Si,Al)
 
2
O
 
6
]
Clinoferrosilite
Fe
2+
 
SiO
 
3
Diopside
CaMgSi
 
2
O
 
6
Esseneite
CaFe
3+
 
[AlSiO
 
6
]
Grossmanite
CaTi
3+
 
AlSiO
 
6
Hedenbergite
CaFe
2+
 
Si
 
2
O
 
6
Jadeite
Na(Al,Fe
3+
 
)Si
 
2
O
 
6
Jervisite
(Na,Ca,Fe
2+
 
)(Sc,Mg,Fe
2+
 
)Si
 
2
O
 
6
Johannsenite
CaMn
2+
 
Si
 
2
O
 
6
Kanoite
Mn
2+
 
(Mg,Mn
2+
 
)Si
 
2
O
 
6
Kosmochlor
NaCrSi
 
2
O
 
6
Kushiroite
CaAl[AlSiO
 
6
]
Namansilite
NaMn
3+
 
Si
 
2
O
 
6
Natalyite
Na(V
3+
 
,Cr)Si
 
2
O
 
6
Omphacite
(Ca,Na)(Mg,Al)Si
 
2
O
 
6
Petedunnite
Ca(Zn,Mn
2+
 
,Mg,Fe
2+
 
)Si
 
2
O
 
6
Pigeonite
(Mg,Fe
2+
 
,Ca)(Mg,Fe
2+
 
)Si
 
2
O
 
6
Spodumene
LiAlSi
 
2
O
 
6
Related Minerals - Nickel-Strunz Grouping):

- +
9.DA.05Donpeacorite
(Mn
2+
 
,Mg)Mg[SiO
 
3
]
 
2
9.DA.05Enstatite
MgSiO
 
3
9.DA.05Ferrosilite
FeSiO
 
3
9.DA.10Clinoferrosilite
Fe
2+
 
SiO
 
3
9.DA.10Kanoite
Mn
2+
 
(Mg,Mn
2+
 
)Si
 
2
O
 
6
9.DA.10Pigeonite
(Mg,Fe
2+
 
,Ca)(Mg,Fe
2+
 
)Si
 
2
O
 
6
9.DA.15Augite
(Ca,Na)(Mg,Fe
2+
 
,Al,Fe
3+
 
,Ti)[(Si,Al)
 
2
O
 
6
]
9.DA.15Diopside
CaMgSi
 
2
O
 
6
9.DA.15Esseneite
CaFe
3+
 
[AlSiO
 
6
]
9.DA.15Hedenbergite
CaFe
2+
 
Si
 
2
O
 
6
9.DA.15Johannsenite
CaMn
2+
 
Si
 
2
O
 
6
9.DA.15Petedunnite
Ca(Zn,Mn
2+
 
,Mg,Fe
2+
 
)Si
 
2
O
 
6
9.DA.15Davisite
CaScAlSiO
 
6
9.DA.15Kushiroite
CaAl[AlSiO
 
6
]
9.DA.15Grossmanite
CaTi
3+
 
AlSiO
 
6
9.DA.20Aegirine-augite
(Na,Ca)(Fe
3+
 
,Fe
2+
 
,Mg,Al)Si
 
2
O
 
6
9.DA.20Omphacite
(Ca,Na)(Mg,Al)Si
 
2
O
 
6
9.DA.25Aegirine
NaFe
3+
 
Si
 
2
O
 
6
9.DA.25Jadeite
Na(Al,Fe
3+
 
)Si
 
2
O
 
6
9.DA.25Jervisite
(Na,Ca,Fe
2+
 
)(Sc,Mg,Fe
2+
 
)Si
 
2
O
 
6
9.DA.25Kosmochlor
NaCrSi
 
2
O
 
6
9.DA.25Namansilite
NaMn
3+
 
Si
 
2
O
 
6
9.DA.25Natalyite
Na(V
3+
 
,Cr)Si
 
2
O
 
6
9.DA.30Spodumene
LiAlSi
 
2
O
 
6
Related Minerals - Hey's Index Grouping:

- +
14.4.1Forsterite
Mg
 
2
SiO
 
4
14.4.2Enstatite
MgSiO
 
3
14.4.4Chrysotile
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
14.4.5Clinochrysotile
14.4.6Orthochrysotile
14.4.7Parachrysotile
14.4.8Lizardite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
14.4.9Talc
Mg
 
3
(Si
 
4
O
 
10
)(OH)
 
2
14.4.10Spadaite
MgSiO
 
2
(OH)
 
2
· H
 
2
O (?)
14.4.11Sepiolite
Mg
 
4
(Si
 
6
O
 
15
)(OH)
 
2
· 6H
 
2
O
14.4.12Loughlinite
Na
 
2
Mg
 
3
Si
 
6
O
 
16
· 8H
 
2
O
14.4.13Eifelite
KNa
 
3
Mg
 
4
Si
 
12
O
 
30
14.4.14Stevensite
(Ca,Na)
 
x
Mg
 
3-x
(Si
 
4
O
 
10
)(OH)
 
2
14.4.15Antigorite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
14.4.16 Magnesio-anthophyllite

Other Names for Clinoenstatite

Other Languages:
German:Clinoenstatit
Klinoenstatit
Klinoenstenit
Russian:Клиноэнстатит
Simplified Chinese:斜顽辉石
斜顽火辉石
Spanish:Clinoenstatita

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 Clinoenstatite

Reference List:

- +
Clark, J.R., D.E. Appleman, and J.J. Papike (1969) Crystal-chemical characterization of clinopyroxenes based on eight new structure refinements. MSA Special Paper 2: 31-50.

Canadian Mineralogist (1989): 27: 143.

Internet Links for Clinoenstatite

Search Engines:
  • Look for Clinoenstatite on Google
  • Look for Clinoenstatite images on Google
  • External Links:
  • Look for Clinoenstatite on Webmineral
  • Look for Clinoenstatite on Athena Mineralogy
  • Look for Clinoenstatite on Wikipedia
  • Look for Clinoenstatite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Clinoenstatite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Find Clinoenstatite on www.crystalclassics.co.uk
  • Fine Minerals from Weinrich Minerals, Inc.
  • Rare and Unusual minerals at Mineralogical Research Company
  • Buy fine minerals and gemstones from Pala International
  • Buy from McDougall Minerals
  • Fine and rare minerals from mintreasure.com
  • Buy RARE Minerals from Rocks of Africa
  • High-end worldwide specimens & outstanding customer service
  • rare and unusual minerals mainly crystallized
  • Clinoenstatite specimens for sale - minfind.com
  • Lapis Mineral Magazin
  • Localities for Clinoenstatite

    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.
    Algeria
     
    • Adrar Province
    McCoy, T. J., Keil, K., Bogard, D., Casanova, I. & Lindstrom, M. M. (1992) ILAFEGH 009: A New Sample of the Diverse Suite of Enstatite Impact Melt Rocks (Abstract). LPSC XXIII: page 869. (March 1992)
    Antarctica
    AmMin 36:361-367
    • Eastern Antarctica
      • Transantarctic Mts
        • Buckley Island quadrangle
          • Lewis Cliff
    Lindstrom, M. M., Ed. (1993) New meteorites: Antarctic Meteorite Newsletter 12 (1), 4-20. (March 1993)
    Lindstrom, M. M., ed. (1990). New Meteorites. Antarctic Meteorite Newsletter 13 (2): 9-24. (March 1990)
    Australia
     
    • Queensland
      • Charters Towers Region
        • South Gregory
          • Tenham Station
    http://webmineral.com/specimens/picshow.php?id=2940; American Mineralogist, Volume 84, pages 267–271, 1999
    • South Australia
      • Mt Lofty Ranges
        • South Mt Lofty Ranges (Adelaide Hills)
          • Adelaide
    Davy, R., Whitehead, S. G. & Pitt, G. (1978): The Adelaide Meteorite. Meteoritics 13 (1): 121-140. (March 1978)
      • Olary Province
        • Plumbago Station
    No reference listed
    • Victoria
      • City of Greater Shepparton
        • Murchison
    Louis H. Fuchs, Kenneth J. Jensen & Edward Olsen (1970). Mineralogy and Composition of the Murchison Meteorite. Meteoritics 5, #4, p. 198. (Dec 1970).
    • Western Australia
      • Mount Marshall Shire
        • Bencubbin
    Horton E. Newsom & Michael J. Drake (1977). Metal Fractionation Patterns in the Bencubbin Meteorite. Meteoritics 12, p. 326.
      • Ngaanyatjarraku Shire
        • West Musgrave Block
          • Wingellina Community
    Trommsdorff, V., and Wenk, H.-R. (1968): Contributions to Mineralogy and Petrology 19, 158-168.
    Austria
     
    • Styria
      • Bad Gleichenberg
        • Kapfenstein
    Collection of NHM, Vienna
    Azerbaijan
     
    • Naxçıvan District (Naxcivan; Nakhichevan)
      • Shusha
    http://rruff.geo.arizona.edu/doclib/hom/roedderite.pdf.; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; American Mineralogist, Volume 93, pages 902–909, 2008
    Brazil
     
    • Minas Gerais
    Jour. of South American Earth Sci. 15:709–723
    Canada
     
    • Alberta
      • Abee
    Brian Harold Mason (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30.
    China
     
    • Anhui Province
      • Anqing Prefecture
        • Yuexi Co.
    T21A-0507 0800h : Clinoenstatite Exsolution in Diopside of Dabieshan, China - Evidence of Origin $>$ 250km Tectonophysics 2004 Fall Meeting
      • Bozhou Prefecture
        • Qiaocheng District
          • Xiaoyanzhuang
    Kuiren Wang and Junxin Wang (1987): Acta Mineralogica Sinica 7(3), 238-244
    • Guizhou Province
      • Guiyang Prefecture
        • Qingzhen Co.
    Daode Wang and Rambaldi, E.R. (1988): Acta Mineralogica Sinica 8(4), 324-335
    • Jilin Province (Manchuria; Dongbei Region)
      • Jilin Prefecture
        • Chuanying District
    Wankang Huang, Yingwen Xie, and Jingming Pan (1978): Geochimica 7(1), 25-34
    Egypt
     
    • New Valley Governorate
    Methot, R. L. et al., (1975) Mineralogy, petrology and chemistry of the Isna (C3) meteorite. Meteoritics 10 (2): 121-131. (Jun 1975)
    France
     
    • Auvergne
      • Puy-de-Dôme
        • Châtelguyon
          • Charbonnières-les-Varennes
    C. Lemanski, Jr. (re-entry of lost Mindat data).
        • Rochefort-Montagne
          • Vernines
    collected by François Périnet
        • Tauves
          • Avèze
    collected by François Périnet
          • Singles
    collected by François Périnet
    • Centre
      • Loir-et-Cher
    Rhian H. Jones & Adrian J. Brearley. (1994). Reduced, Plagioclase-rich Chondrules in the Lancé and Kainsaz CO3 Chondrites. Abstracts of the 25th Lunar and Planetary Science Conference. p. 641. (March 1994).
      • Loiret
        • Gien
    collected by François Périnet
    • Midi-Pyrénées
      • Haute-Garonne
    Mason, B. H. (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30. (Jan 1966)
    Hungary
     
    • Veszprém Co.
      • Balaton Uplands
        • Tapolcai Basin
          • Uzsa (Uzsabánya)
    Szakáll & Gatter, 1993
    India
     
    • Tamil Nadu
    Brearley, A. J. (1988) Nature and Origin of Matrix in the Unique Chondrite, Kakangari: A TEM Investigation, Lunar and Planetary Science XIX, 130-131. (March 1988)
    Italy
     
    • Emilia-Romagna
      • Ferrara Province
    Abreu, N. M. & Brearley, A. J. (2011): Deciphering the nebular and asteroidal record in silicates and organic material in the matrix of the reduced CV3 chondrite Vigarano: Meteoritics & Planetary Science 46 (2): 252-274. (Feb 2011).
    Brian Mason & H. B. Wiik (1962). The Renazzo meteorite. American Museum Novitates, #2106.
    Japan
     
    • Tokyo Prefecture
      • Ogasawara Islands
        • Chichijima Group
    Forrest Cureton specimens
    Wada (1904): Minerals of Japan; Alfredo Petrov collection
        • Mukojima Group
    Alfredo Petrov collection; Akira Kato (2011) Explanations of distributed specimens at the Ordinary Meeting of Mumeikai Group, No. 34 (January, 2011).
    Malawi
     
    Brian Mason (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30.
    New Caledonia
     
    • Northern Province
      • Poya North Commune
        • Népoui
    T. Sameshima et al. , Am. Min. , 1983, 68, pp. 1076-1082. / C. Campiglio et al. , Bull. Minéral. , 1986, 109, pp. 423-440.
    Norway
     
    • Telemark
    Haas,Gerardus Johannes Lambertas Maria de (2012) Source,Evolution,And Age Of Coronitic Gabbros From The Aredal-Nelaug Area,Bamble,Southeast Norway
    Outer Space
    European Journal of Mineralogy; December; v. 19; no. 6; p. 771-782; DOI: 10.1127/0935-1221/2007/0019-1766
    Pakistan
     
    • Gilgit-Baltistan (Northern Areas)
      • Astor District (Astore District)
        • Astor valley (Astore valley)
    P Haas collection
    • Punjab
    Mason, B. H. (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30. (Jan 1966); Keil, K. (1968). Mineralogical and Chemical Relationships among the Enstatite Chondrites. Journal of Geophysical Research 73 (22): 6945-6976. (Nov 1968)
    Poland
     
    • Łódzkie
      • Łowicz District
    Karwowski Ł. 2003: The new mineralogical data on the Łowicz meteorite. Mineralogical Society of Poland - Special Papers, vol. 22, pp. 102-104
    Romania
     
    • Bistrița-Năsăud Co.
      • Rodna Mtn (Rodnei Mtn)
        • Rodna
          • Valea Vinului
    Delia Cristina Papp, Ionel Ureche, Ioan Seghedi, Hilary Downes, Luigi Dallai, (2005), Petrogenesis of convergent-margin calc-alkaline rocks and the significance of the low oxygen isotope ratios: the Rodna-Bârgău Neogene subvolcanic area (Eastern Carpathians), Geologica Carpathica, 56, 1, p.77-90
    • Harghita Co.
    Pál-Molnár (2000)
    • Mureş Co.
    Michel‐Lévy, M. C. (1988). A New Component of the Mezö‐Madaras Breccia: A Microchondrule‐and Carbon‐Bearing L‐Related Chondrite. Meteoritics, 23(1), 45-48.
    Slovakia
     
    • Banská Bystrica Region
      • Lučenec Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
      • Rimavská Sobota Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Sudan
     
    • Kassala Wilayah
      • Gash delta
    Hey, M. H. & Easton, A. J. in Geochimica et Cosmochimica Acta 31(10):1789-1790 (1967)
    Switzerland
     
    • Bern
      • Utzenstorf
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 500
    • Ticino (Tessin)
      • Riviera
        • Bellinzona
          • Gorduno
    Science, 2 April 1999, Vol. 284
    The Moon
    J. Frondel (2009), Lunar Mineralogy, Wiley Interscience
    • Mare Fecunditatis
    Gornostaeva T.A., Kartashov P.M., Mokhov A.V., Bogatikov O.A. (2012) Native rhodium-bearing ferroplatinum in the Lunar regolith sample from the Mare Fecundidatis, - Doklady Earth Sciences, 444(2), p. 770-772.
    USA
     
    • California
      • San Bernardino Co.
        • Amboy
    Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 307; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 386.
    • Colorado
      • Kit Carson Co.
    Mason, B. H. (1966). The Enstatite Chondrites. Geochimica et Cosmochimica Acta 30, 23-30. (Jan 1966).
    • Kansas
      • Decatur Co.
    Workshop on Parent-Body and Nebular Modification of Chondritic Materials 4038.pdf http://www.lpi.usra.edu/meetings/chondrite/pdf/4038.pdf
      • Norton Co.
    Akihiko Okada, Klaus Keil & G. J. Taylor (1980). The Norton County enstatite achondrite: A brecciated, plutonic igneous rock. Abstracts of Papers Presented at the Forty-Third Annual Meeting of the Meteoritical Society. LPI Contribution 412, edited by Paula Criswell, published by the Lunar and Planetary Institute: Houston, p.170.
    • Kentucky
      • Whitley Co.
    Alan E. Rubin (2010). Impact melting in the Cumberland Falls and Mayo Belwa aubrites. Meteoritics & Planetary Science 45, #2, 265-275.
    • Nevada
      • Eureka Co.
    Peter G. Vikre (1998) Intrusion-related, polymetallic carbonate replacement deposits in the Eureka district, Eureka County, Nevada. Nevada Bureau of Mines and Geology Bulletin 110
          • Prospect Ridge
    Peter G. Vikre (1998) Intrusion-related, polymetallic carbonate replacement deposits in the Eureka district, Eureka County, Nevada. Nevada Bureau of Mines and Geology Bulletin 110
      • Pershing Co.
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Santa Fe Co.
        • La Bajada District
    Minerals of New Mexico 3rd ed.
    Minerals of New Mexico 3rd ed.
    Minerals of New Mexico 3rd ed.
      • Sierra Co.
    Minerals of New Mexico 3rd ed.
    • New York
      • Orange Co.
        • Town of Monroe
          • Lake Mombasha
    Lupulescu, Marian: Rocks& Min. -- May/June 2008
    • Oklahoma
      • Washita Co.
    Rubin, A. E., James, J. A., Keck, B. D., Weeks, K. S., Sears, D. W. G. & Jarosewich, E. (1985) The Colony meteorite and variations in CO3 chondrite properties. Meteoritics 20(2, part 1): 175-196. (June 1985)
    • Texas
      • Armstrong Co.
    Olsen, E. J., Bunch, T. E., Jarosewich, E., Noonan, A. F. & Huss, G. I. (1977) Meteoritics 12 (2), 109-123. (June 1977)
      • Grayson Co.
    Davis, A. M. & Olsen, E. (1984). Carbonaceous Chondrite Related to c1 and c2 Chondrites (Abstract). Lunar and Planetary Science XV, 190-191. (March 1984)
      • Lubbock Co.
    Meteoritics (ISSN 0026-1114), vol. 24, Dec. 1989, p. 195-208.
    • Washington
      • Clark Co.
        • Washougal
    Cannon, B. (1975): Minerals of Washington, p.85
    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: May 13, 2014 16:31:05
    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