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Twirligig, Burke River, Westland District, West Coast Region, South Island, New Zealand

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Latitude & Longitude (WGS84): 44° 1' 48'' South , 169° 17' 59'' East
Latitude & Longitude (decimal): -44.03000,169.30000
GeoHash:G#: rb0ms886x
Köppen climate type:Cfc : Subpolar oceanic climate


The study by Cooper (1996) was conducted on various sites in the Burke River area, as part of a swarm of lamphrophyre dykes, 25 kilometres wide, and 110 kilometres long in the vicinity of the Alpine Fault.

The main interest was baotite, which is a rare Ba-Nb-Ti chlorosilicate. It is the first silicate that has quadruple metasilicate rings in its crystal structure. It is found here as widespread in Ba-Sr rich carbonitic and sideritic ferrocarbonatites, and associated fenites, showing as richer in Nb and Fe than previous studied samples of the species. The material is largely pale to dark brown grains and granules up to 0.5 mms.

At the Twirligig (creek) is a norsethite rich sill, in a 2.5 kilometre long carbonatite intrusion zone featuring baotite. The species is found in thin veins of calcite-ankerite carbonatite. The calcite-ankerite carbonatite contains calcite, albite, ankerite, titanian aegirine calcian strontianite, Ba-Ca-Sr LREE carbonates, possibly burbankite, pyrite, sphalerite, galena, chalcopyrite and baotite.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Albite
Formula: Na(AlSi3O8)
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Baotite
Formula: Ba4Ti8Si4O28Cl
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Burbankite ?
Formula: (Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Calcite
Formula: CaCO3
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Chalcopyrite
Formula: CuFeS2
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Galena
Formula: PbS
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Pyrite
Formula: FeS2
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Sphalerite
Formula: ZnS
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Strontianite
Formula: SrCO3
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.
Strontianite var: Emmonite
Formula: (Sr,Ca)CO3
Reference: Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 5 - Nitrates and Carbonates
'Ankerite'5.AB.10Ca(Fe2+,Mg)(CO3)2
'Burbankite' ?5.AC.30(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
'Calcite'5.AB.05CaCO3
Strontianite5.AB.15SrCO3
var: Emmonite5.AB.15(Sr,Ca)CO3
Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
'Albite'9.FA.35Na(AlSi3O8)
'Baotite'9.CE.15Ba4Ti8Si4O28Cl

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Strontianite14.1.3.3SrCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Miscellaneous
Burbankite ?14.4.4.1(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Group 60 - CYCLOSILICATES Four-Membered Rings
Four-Membered Rings, as Titanosilicates
Baotite60.1.2.1Ba4Ti8Si4O28Cl
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Strontianite
var: Emmonite
-(Sr,Ca)CO3

List of minerals for each chemical element

CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
C CalciteCaCO3
C Strontianite (var: Emmonite)(Sr,Ca)CO3
C StrontianiteSrCO3
OOxygen
O AegirineNaFe3+Si2O6
O AlbiteNa(AlSi3O8)
O AnkeriteCa(Fe2+,Mg)(CO3)2
O BaotiteBa4Ti8Si4O28Cl
O Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
O CalciteCaCO3
O Strontianite (var: Emmonite)(Sr,Ca)CO3
O StrontianiteSrCO3
NaSodium
Na AegirineNaFe3+Si2O6
Na AlbiteNa(AlSi3O8)
Na Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Al AlbiteNa(AlSi3O8)
SiSilicon
Si AegirineNaFe3+Si2O6
Si AlbiteNa(AlSi3O8)
Si BaotiteBa4Ti8Si4O28Cl
SSulfur
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
ClChlorine
Cl BaotiteBa4Ti8Si4O28Cl
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Ca CalciteCaCO3
Ca Strontianite (var: Emmonite)(Sr,Ca)CO3
TiTitanium
Ti BaotiteBa4Ti8Si4O28Cl
FeIron
Fe AegirineNaFe3+Si2O6
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
SrStrontium
Sr Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Sr Strontianite (var: Emmonite)(Sr,Ca)CO3
Sr StrontianiteSrCO3
BaBarium
Ba BaotiteBa4Ti8Si4O28Cl
Ba Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
CeCerium
Ce Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Railton, G.L., Watters, W.A. (1990) Minerals of New Zealand, New Zealand Geological Survey Bulletin No. 104.
Cooper, A.F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine Vol. 60, 473-482.


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