Barringtonite
Valid as an unnamed mineral
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About Barringtonite
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.
Unique Identifiers
Mindat ID:
538
Long-form identifier:
mindat:1:1:538:4
GUID
(UUID V4):
(UUID V4):
eaf3b807-cd17-4c92-beb9-25a8da08c70e
IMA Classification of Barringtonite
IMA status notes:
Unnamed (probably valid)
Approval history:
Unnamed, but probably valid.
Classification of Barringtonite
5.CA.15
5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
A : With medium-sized cations
5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
A : With medium-sized cations
15.1.5.1
15 : HYDRATED NORMAL CARBONATES
1 : A(XO3)·xH2O
15 : HYDRATED NORMAL CARBONATES
1 : A(XO3)·xH2O
11.3.2
11 : Carbonates
3 : Carbonates of Mg
11 : Carbonates
3 : Carbonates of Mg
Optical Data of Barringtonite
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none
Chemistry of Barringtonite
Mindat Formula:
MgCO3 · 2H2O
Elements listed:
Crystallography of Barringtonite
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°
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 Barringtonite
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Barringtonite associated with Lansfordite | MgCO3 · 5H2O |
Related Minerals - Strunz-mindat Grouping
5.CA.05 | Nesquehonite | MgCO3 · 3H2O |
5.CA.10 | Lansfordite | MgCO3 · 5H2O |
5.CA.20 | Hellyerite | NiCO3 · 5.5H2O |
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.
Internet Links for Barringtonite
mindat.org URL:
https://www.mindat.org/min-538.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Barringtonite
Reference List:
Localities for Barringtonite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Australia | |
| |
Greece | |
|
Maricopa County, Arizona, USA