Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Pyroxferroite

Big Photo

Ettringer Bellerberg Mt., Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany
© O. Dziallas

Show Pyroxferroite Photos (6)
Formula:
(Fe,Mn,Ca)SiO
 
3
System:TriclinicColour:Pale yellow, ...
Hardness:4½ - 5½


Pyroxferroite-Pyroxmangite Series

Classification of Pyroxferroite

IMA status:Approved
Strunz 8th edition ID:8/F.31-10
Nickel-Strunz 10th (pending) edition ID:9.DO.05

9 : SILICATES (Germanates)
D : Inosilicates
O : Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains
Dana 8th edition ID:65.6.1.2

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
6 : Single-Width Unbranched Chains, W=1 with chains P=7
Hey's CIM Ref.:14.22.2

14 : Silicates not Containing Aluminum
22 : Silicates of Fe and Ca
mindat.org URL:http://www.mindat.org/min-3326.html
Please feel free to link to this page.

Type Occurrence of Pyroxferroite

Type Locality:Mare Tranquillitatis (Sea of Tranquility), The Moon
Year of Discovery:1970

Physical Properties of Pyroxferroite

Colour:Pale yellow, orange-yellow, yellow, light brown
Hardness (Mohs):4½ - 5½

Crystallography of Pyroxferroite

Crystal System:Triclinic
Cell Parameters:a = 6.62Å, b = 7.55Å, c = 17.38Å
α = 144.26°, β = 82.68°, γ = 94.75°
Ratio:a:b:c = 0.877 : 1 : 2.302
Unit Cell Volume:V 502.94 ų (Calculated from Unit Cell)

Optical Data of Pyroxferroite

Type:Biaxial (+)
RI values: nα = 1.746 - 1.756 nβ = 1.750 - 1.758 nγ = 1.764 - 1.768
2V:Measured: 30° to 40°, Calculated: 50° to 58°
Maximum Birefringence:δ = 0.018

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r < v marked

Chemical Properties of Pyroxferroite

Formula:
(Fe,Mn,Ca)SiO
 
3
Essential elements:Fe, O, Si
All elements listed in formula:Ca, Fe, Mn, O, Si
Common Impurities:Ti,Al,Mg,Na

Relationship of Pyroxferroite to other Species

Series:Forms a series with Pyroxmangite (see here)
Related Minerals - Nickel-Strunz Grouping):
9.DO.05Pyroxmangite
MnSiO
 
3
9.DO.10Pellyite
Ba
 
2
Ca(Fe,Mg)
 
2
Si
 
6
O
 
17
9.DO.15Nordite-(Ce)
(Ce,La)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
9.DO.15Nordite-(La)
(La,Ce)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
9.DO.15Ferronordite-(Ce)
Na
 
3
SrCeFe
2+
 
Si
 
6
O
 
17
9.DO.15Manganonordite-(Ce)
Na
 
3
SrCeMn
2+
 
Si
 
6
O
 
17
9.DO.15Ferronordite-(La)
Na
 
3
Sr(La,Ce)FeSi
 
6
O
 
17
9.DO.20Alamosite
Pb
 
12
[Si
 
12
O
 
36
]
9.DO.25Liebauite
Ca
 
3
Cu
 
5
Si
 
9
O
 
26
Related Minerals - Hey's Index Grouping:
14.22.1Hedenbergite
CaFe
2+
 
[Si
 
2
O
 
6
]
14.22.3 Ferro-akermanite
Ca
 
2
FeSi
 
2
O
 
7
14.22.4Kirschsteinite
CaFe
2+
 
[SiO
 
4
]
14.22.5Tungusite
Ca
 
4
Fe
 
2
Si
 
6
O
 
15
(OH)
 
6
14.22.6Ferro-Actinolite
☐[Ca
 
2
][(Fe
2+
 
,Mg)
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
14.22.7Ilvaite
CaFe
2+
2
Fe
3+
 
[O|OH|Si
 
2
O
 
7
]
14.22.8Julgoldite-(Fe2+)
Ca
 
2
(Fe
2+
 
,Mg)(Fe
3+
 
,Al)
 
2
[(OH)
 
2
|SiO
 
4
|Si
 
2
O
 
7
] · H
 
2
O
14.22.9Andradite
Ca
 
3
Fe
3+
2
[SiO
 
4
]
 
3

Other Names for Pyroxferroite

Synonyms:
IMA1970-001
German names:
Pyroxferroit
Spanish names:
Pyroxferroita

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 Pyroxferroite

Reference List:American Mineralogist (1970): 55: 2137.

Geochemica et Cosmochimica Acta: 34(1): 65-79.

Burnham, C. (1971) The crystal structure of pyroxferroite from Mare Tranquilitatis. Supplement to Geochemica et Cosmochimica Acta: 34(2): 47-57.

Nikischer, Tony and Joe Orosz (2007) Lunar Mineral Found at Franklin, Sussex Co., New Jersey. Mineral News: 23(8): 1, 2, 9, 14.

Internet Links for Pyroxferroite

Search Engines:
  • Look for Pyroxferroite on Google
  • Look for Pyroxferroite images on Google
    • External Links:
  • Look for Pyroxferroite on Webmineral
  • Look for Pyroxferroite on Athena Mineralogy
  • Look for Pyroxferroite on Wikipedia
  • Look for Pyroxferroite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Pyroxferroite in the Natural History Museum (London) online catalogue
  • Pyroxferroite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • e-Rocks - Mineral Auctions and Sales
  • Lapis Mineral Magazin
  • The Arkenstone - Fine Minerals
  • Find Pyroxferroite on www.crystalclassics.co.uk
  • Top quality minerals from Kristalle of California
  • Fine Minerals from Dan Weinrich Minerals
  • Buy Fine Minerals from mineralsweb.com
  • Wendel Minerals - Auktion & Shop
  • Fabre Minerals - search for Pyroxferroite specimens
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Buy Minerals and Crystals from Crystalarium.com
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Pyroxferroite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    Finland
     
    • Länsi-Suomen Lääni
    		Bulletin de la Commission Geologique de Finlande 115; 387-400, 1936
      • Vaasa
        • Seinäjoki
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Mayen
          • Ettringen
    		[Blass, G., Graf, H.W., Neufunde von bekannten Fundorten (20), Mineralien-Welt 9/1, 45, 1998] [A. Wittern: Mineralfundorte in Deutschland, Schweizerbart (Stuttgart), 2001]
    Japan
     
    • Honshu Island
      • Kinki Region
        • Kyoto Prefecture
          • Naka-gun
            • Mineyama-cho
    		Alfredo Petrov - private communication (2008)
    Masutomi Museum specimens (Kyoto)
    Yamada et al (1980), Chigaku Kenkyu: 31: 205-222.
    Oman
     
    • Dhofar (Al Janubiyah) Province
    Sweden
     
    • Dalarna
      • Ludvika
    		No reference listed
    The Moon
     
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Nikischer, Tony and Joe Orosz (2007) Lunar Mineral Found at Franklin, Sussex Co., New Jersey. Mineral News: 23(8): 1, 2, 9, 14.
    • South Carolina
      • Anderson Co.
    		Nikischer, Tony and Joe Orosz (2007) Lunar Mineral Found at Franklin, Sussex Co., New Jersey. Mineral News: 23(8): 1, 2, 9, 14.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.