SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
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 ElementsBooks & Magazines
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 MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Barringtonite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
MgCO3 · 2H2O
Crystal System:
Triclinic
Name:
Named for Barrington Tops, type locality.
Originally reported from Rainbow Falls, Semphill Creek, Barrington Tops, Gloucester Co., New South Wales, Australia.


Hide all sections | Show all sections

Classification of BarringtoniteHide

Notes:
Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.
Strunz 8th ed.:
5/D.01-10
Nickel-Strunz 10th (pending) ed.:
5.CA.15

5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
A : With medium-sized cations
Dana 8th ed.:
15.1.5.1

15 : HYDRATED NORMAL CARBONATES
1 : A(XO3)·xH2O
Hey's CIM Ref.:
11.3.2

11 : Carbonates
3 : Carbonates of Mg

Optical Data of BarringtoniteHide

Type:
Biaxial (+)
RI values:
nα = 1.458 nβ = 1.473 nγ = 1.501
2V:
Measured: 73° , Calculated: 74°
Max Birefringence:
δ = 0.043
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of BarringtoniteHide

Formula:
MgCO3 · 2H2O
Elements listed:
C, H, Mg, O - search for minerals with similar chemistry

Crystallography of BarringtoniteHide

Crystal System:
Triclinic
Cell Parameters:
a = 9.15 Å, b = 6.2 Å, c = 6.09 Å
α = 94°, β = 95.5°, γ = 108.7°
Ratio:
a:b:c = 1.476 : 1 : 0.982
Unit Cell V:
323.89 ų (Calculated from Unit Cell)

Other Language Names for BarringtoniteHide

Simplified Chinese:二菱镁矿

Related Minerals - Nickel-Strunz GroupingHide

5.CA.05NesquehoniteMgCO3 · 3H2OMon. 2/m : P21/m
5.CA.10LansforditeMgCO3 · 5H2OMon. 2/m : P21/b
5.CA.20HellyeriteNiCO3 · 5.5H2OMon. 2/m : P2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.3.1MagnesiteMgCO3Trig. 3m (3 2/m) : R3c
11.3.3NesquehoniteMgCO3 · 3H2OMon. 2/m : P21/m
11.3.4LansforditeMgCO3 · 5H2OMon. 2/m : P21/b
11.3.5PokrovskiteMg2(CO3)(OH)2Mon.
11.3.6ArtiniteMg2(CO3)(OH)2 · 3H2OMon.
11.3.7HydromagnesiteMg5(CO3)4(OH)2 · 4H2OMon.
11.3.8GiorgiositeMg5(CO3)4(OH)2 · 5-6H2O
11.3.9DypingiteMg5(CO3)4(OH)2 · 5H2OMon.
11.3.10EiteliteNa2Mg(CO3)2Trig.
11.3.11Mcguinnessite(Mg,Cu)2(CO3)(OH)2Mon. 2/m

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.

References for BarringtoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 50: 2103.
Mineralogical Magazine: 34: 370-372.

Internet Links for BarringtoniteHide

Localities for BarringtoniteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • New South Wales
    • Gloucester Co.
      • Barrington Tops
        • Sempill Creek
Mineralogical Magazine 1965 34 : 370-372
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion mining district
          • Sounion
            • Cato Sounio mines
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
Quick NavTopClassification Optical Data Chemical Properties Crystallography Other LanguagesNickel-StrunzHey's CIMOther InformationReferences Internet Links Localities Locality List
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: September 26, 2020 04:28:05 Page generated: August 5, 2020 01:30:53
Go to top of page