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Kempton Brothers Beryl Mine (Arthur River South pegmatite; Tobin Well pegmatite; Marloo No 2 pegmatite; Marloo Well No 2 pegmatite), Yinnietharra (Yinnietharra Station; Yinnetharra), Upper Gascoyne Shire, Western Australia, Australiai
Regional Level Types
Kempton Brothers Beryl Mine (Arthur River South pegmatite; Tobin Well pegmatite; Marloo No 2 pegmatite; Marloo Well No 2 pegmatite)Mine
Yinnietharra (Yinnietharra Station; Yinnetharra)- not defined -
Upper Gascoyne ShireShire
Western AustraliaState
AustraliaCountry

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Latitude & Longitude (WGS84):
24° 29' 33'' South , 116° 9' 59'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:


Pegmatite located 6.7 km south of Pyramid Hill on Yinnietharra Station, Western Australia. It is the type locality of clinobisvanite.
The pegmatite was worked for beryl. It intrudes a quartzite belonging to the lower Proterozoic Wyloogroup (Bridge & Pryce, 1974).

Note 1: The Yinnietharra area is known for many pegmatites which were exploited for beryl during and after World War II.
Note 2: This is not the famous dravite locality (which is not a pegmatite), see Soklich Open Pit Mine, Yinnietharra.

This pegmatite has historically been called several names including the Arthur River South pegmatite (Trautman 1992), Tobin Well pegmatite (Johnston et al 1990), Marloo No2 pegmatite (Richards 1999), Marloo Well No2 pegmatite (Fetherston 2004). Mindat once listed the location incorrectly as 'Yinnietharra pegmatite'. Further various sources including above have given varying descriptions of its location. After an extensive study, the reference 'Pegmatites of Western Australia' concluded it was 6.7 kilometres south of Pyramid Hill. This included a discussion with Peter Bridge (2003) who was co-author of the existing reference below on clinobisvanite, and listed it as 5 kilometres south of the hill. 'Pegmatites of Western Australia' claim there is no pegmatite 5 kilometres south of Pyramid Hill. This source also provides a map stating its on Bidgemia Station (which is next door to Yinnietharra Station).

Exploratory work and mapping was carried out at the site by AGIP Nucleare in 1974. The pegmatite was pegged by the three Kempton brothers, (Bob, Eric and Les) in 1979. They did limited mining of beryl and tantalum-niobium minerals. It was briefly (and unsuccessfully) explored for scheelite in 1982 before the site was abandoned.

The pegmatite is 300 x 40 metres in size. It has a wall zone of coarse grained microcline-plagioclase-quartz-muscovite and a core of microcline. Trautman (1992) describes the pegmatite as irregular shaped albite variety cleavelandlite masses within the microcline and containing columbite-tantalite and garnet. Mark Calderwood described the pegmatite as massive spessartine, red plagioclase, muscovite and quartz.

It is the type locality for clinobisvanite. The species was discovered by P. Bridge in 1972 after studying material from a collecting trip by the CSIRO to the area in 1971. Later in 1972, R.M. Clarke also discovered the species while studying material collected by Bridge from the Londonderry pegmatite near Coolgardie. A search through the CSIRO uncovered three further locations: Wodgina, Menzies(?), and the Champion Gold Mine near Westonia. In 1973, E.W. Bing found the species on a sample recently submitted from a location 1.3 kilometres north of Corinthia, north of Southern Cross. All locations are in Western Australia. Subsequently it was found that the species had been described beforehand from the Mutala pegmatite area, Mozambique, but had not been named, so the type locality went to the Kempton mine (it was subsequently known by this name several years later).

At the location, clinobisvanite occurs as soft friable yellow coatings, orange globular aggregates, and rarely as small groups of reticulated plates up to 0.1mm across, intergrown with bismutite on spessartine garnet crystals.






Regions containing this locality

Australian Plate (Australia Plate)Tectonic Plate
West Australian Element, Western Australia, AustraliaCraton
Warakurna Large Igneous Province, Western Australia, AustraliaGeologic Province
Gascoyne Province, Western Australia, AustraliaGeologic Province

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


16 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Bismutite
Formula: (BiO)2CO3
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Bismutoferrite
Formula: Fe3+2Bi(SiO4)2(OH)
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Clinobisvanite (TL)
Formula: Bi(VO4)
Type Locality:
Habit: plates to 0,1mm
Colour: yellow; orange
Description: Occurs on garnets as yellow powder and orange aggregates. Commonly intergrown with bismutite.
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Columbite-(Fe) ?
Formula: Fe2+Nb2O6
Reference: R Bottrill collection (unconfirmed)
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
'Feldspar Group'
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Leucophosphite
Formula: KFe3+2(PO4)2(OH) · 2H2O
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Liandratite ?
Formula: U(Nb,Ta)2O8
Reference: R Bottrill collection (unconfirmed)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Pyrite
Formula: FeS2
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Quartz
Formula: SiO2
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: http://www.earthmuseum.see.uwa.edu.au/__data/page/48907/Sep06Sep06_Friends_NL.pmd.pdf, see page 13
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Triphylite
Formula: LiFe2+PO4
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Uraninite
Formula: UO2
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Uvarovite
Formula: Ca3Cr2(SiO4)3
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Zircon
Formula: Zr(SiO4)
Reference: Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Columbite-(Fe) ?4.DB.35Fe2+Nb2O6
Liandratite ?4.DH.35U(Nb,Ta)2O8
Quartz4.DA.05SiO2
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Group 8 - Phosphates, Arsenates and Vanadates
Clinobisvanite (TL)8.AD.65Bi(VO4)
Leucophosphite8.DH.10KFe3+2(PO4)2(OH) · 2H2O
Triphylite8.AB.10LiFe2+PO4
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
Bismutoferrite9.ED.25Fe3+2Bi(SiO4)2(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Uvarovite9.AD.25Ca3Cr2(SiO4)3
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Feldspar Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Liandratite ?8.1.9.1U(Nb,Ta)2O8
AB2O6
Columbite-(Fe) ?8.3.2.2Fe2+Nb2O6
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
ABXO4
Triphylite38.1.1.1LiFe2+PO4
AXO4
Clinobisvanite (TL)38.4.7.1Bi(VO4)
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)3(XO4)2Zq·xH2O
Leucophosphite42.11.6.1KFe3+2(PO4)2(OH) · 2H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Uvarovite51.4.3b.3Ca3Cr2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Bismutoferrite71.1.3.1Fe3+2Bi(SiO4)2(OH)
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Feldspar Group'-

List of minerals for each chemical element

HHydrogen
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H BismutoferriteFe23+Bi(SiO4)2(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
H ApatiteCa5(PO4)3(Cl/F/OH)
LiLithium
Li TriphyliteLiFe2+PO4
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C Bismutite(BiO)2CO3
OOxygen
O ClinobisvaniteBi(VO4)
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O Bismutite(BiO)2CO3
O SpessartineMn32+Al2(SiO4)3
O BerylBe3Al2(Si6O18)
O BismutoferriteFe23+Bi(SiO4)2(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O UvaroviteCa3Cr2(SiO4)3
O LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
O ApatiteCa5(PO4)3(Cl/F/OH)
O ZirconZr(SiO4)
O TriphyliteLiFe2+PO4
O UraniniteUO2
O LiandratiteU(Nb,Ta)2O8
O Columbite-(Fe)Fe2+Nb2O6
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al BerylBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si SpessartineMn32+Al2(SiO4)3
Si BerylBe3Al2(Si6O18)
Si BismutoferriteFe23+Bi(SiO4)2(OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si UvaroviteCa3Cr2(SiO4)3
Si ZirconZr(SiO4)
PPhosphorus
P LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
P ApatiteCa5(PO4)3(Cl/F/OH)
P TriphyliteLiFe2+PO4
SSulfur
S PyriteFeS2
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
CaCalcium
Ca UvaroviteCa3Cr2(SiO4)3
Ca ApatiteCa5(PO4)3(Cl/F/OH)
VVanadium
V ClinobisvaniteBi(VO4)
CrChromium
Cr UvaroviteCa3Cr2(SiO4)3
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe BismutoferriteFe23+Bi(SiO4)2(OH)
Fe PyriteFeS2
Fe LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Fe TriphyliteLiFe2+PO4
Fe Columbite-(Fe)Fe2+Nb2O6
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb LiandratiteU(Nb,Ta)2O8
Nb Columbite-(Fe)Fe2+Nb2O6
TaTantalum
Ta LiandratiteU(Nb,Ta)2O8
BiBismuth
Bi ClinobisvaniteBi(VO4)
Bi Bismutite(BiO)2CO3
Bi BismutoferriteFe23+Bi(SiO4)2(OH)
UUranium
U UraniniteUO2
U LiandratiteU(Nb,Ta)2O8

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Statherian
1600 - 1800 Ma



ID: 693836
Durlacher Supersuite

Age: Statherian (1600 - 1800 Ma)

Stratigraphic Name: Durlacher Supersuite

Description: Monzogranite and granodiorite, minor tonalite, syenogranite, gabbro

Comments: igneous felsic intrusive; igneous intermediate intrusive; synthesis of multiple published descriptions

Lithology: Igneous felsic intrusive; igneous intermediate intrusive

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Paleoproterozoic
1600 - 2500 Ma



ID: 3187792
Paleoproterozoic crystalline metamorphic rocks

Age: Proterozoic (1600 - 2500 Ma)

Stratigraphic Name: Gascoyne Complex

Comments: Capricorn Orogen

Lithology: Amphibolite grade paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Bridge, P.J., Pryce, M.W. (1974) Clinobisvanite, monoclinic BiVO₄, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine 39:308, 847-849.
Jacobson, M.I., Calderwood, M.A., Grguric, B.A. (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia, 394 pages.


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