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Rothsay beryl pegmatites (Seleka; Perenjori Beryl Mine), Karara Conservation Reserve, Perenjori Shire, Western Australia, Australiai
Regional Level Types
Rothsay beryl pegmatites (Seleka; Perenjori Beryl Mine)Pegmatite Field
Karara Conservation Reserve- not defined -
Perenjori ShireShire
Western AustraliaState
AustraliaCountry

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Key
Latitude & Longitude (WGS84):
29° 17' 55'' South , 116° 51' 21'' East
Latitude & Longitude (decimal):
Locality type:


Located 77 kilometres east of Perenjori, and 3 kilometres west south-west of the Rothsay mine and ghost-town site. Access over the last kilometre requires a 4 wheel drive, but could be walked. It is part of a tourist drive from Perenjori. Dark green apatite can still be seen in the walls, but as its been a popular and relatively easily accessed site, examples of beryl are unlikely to still be found without much work. The mine is also popular with the local feral goat population, and the odour from their droppings makes a visit to the abandoned mine a less than pleasant experience.

The site contains three beryl bearing pegmatites, discovered in 1969 by E Taylor of Paynes Find while exploring for nickel. They were mapped and studied by Blockley and Gibson in 1973. 296.69 tonnes of beryl was extracted from the site, mainly from the Eastern pegmatite at 270 tonnes.

The three pegmatites generally have a 45 cm thick border zone of fine grained albite, with some mica and quartz, and rarely beryl; a 1.5 to 2.5 wall zone of albite-quartz-muscovite with beryl; a 2 to 5 metre coarse grained albite zone with muscovite, minor quartz and beryl; and a 10 to 15 metre thick quartz core of greasy blue-grey to black quartz with little or no beryl but minor clear opal.

The Eastern pegmatite is 230 metres long, 25 metres wide. A 60 metre long pit exists, 10 metres wide and 8.5 metres deep. The pegmatite contains Western Australia's largest mass of apatite. It is found in smokey quartz and microcline. The apatite ranges from light to dark green as glassy crystal masses. The pegmatite has a quartz core, with fractured controlled masses of albite and elongated muscovite blades. The albite sometimes contains dull greenish beryl crystals.

The Central pegmatite is tadpole shaped, 60 metres wide at its fat end, and 70 metres long. It has two small pits 5 metres deep by 25 metres wide. It is unknown if beryl has been found here.

The Western pegmatite is 100 metres long by 30 metres wide, with a couple of 1 to 2 metres pits which have not penetrated the pegmatite. Beryl has been reported on the surface here in the past.

Beryl has been found in the past at the site, with crystals up to 1 metre in length, blue-green, pale-green and amber. Groups of columbite crystals in albite have been found in the Eastern pegmatite, the largest 5 x 2cm. Apatite from this pegmatite can be light grey glassy parallel cleavage masses without a greasy luster; light grey slightly greasy luster masses with black-green glassy areas; and dark black-green glassy masses with a strong greasy luster.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


11 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Bertrandite
Formula: Be4(Si2O7)(OH)2
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Bityite
Formula: LiCaAl2(AlBeSi2O10)(OH)2
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Microcline
Formula: K(AlSi3O8)
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Opal
Formula: SiO2 · nH2O
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Opal var. Opal-AN
Formula: SiO2 · nH2O
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Pucherite
Formula: Bi(VO4)
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Quartz
Formula: SiO2
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Rutile
Formula: TiO2
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
Rutile var. Ilmenorutile
Formula: Fex(Nb,Ta)2x · 4Ti1-xO2
Reference: Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007). Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
'Zinnwaldite'
Reference: Pegmatites of Western Australia; M.I. Jacobson, M.A. Calderwood, B.A. Grguric; Hesperian Press, Perth, 2007

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Opal4.DA.10SiO2 · nH2O
var. Opal-AN4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
var. Ilmenorutile4.DB.05Fex(Nb,Ta)2x · 4Ti1-xO2
Group 8 - Phosphates, Arsenates and Vanadates
Pucherite8.AD.40Bi(VO4)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
Bityite9.EC.35LiCaAl2(AlBeSi2O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Zinnwaldite'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
var. Ilmenorutile4.4.1.2Fex(Nb,Ta)2x · 4Ti1-xO2
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
AXO4
Pucherite38.4.6.1Bi(VO4)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Bertrandite56.1.1.1Be4(Si2O7)(OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Bityite71.2.2c.3LiCaAl2(AlBeSi2O10)(OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Sheets of 6-membered rings with 2:1 clays
Nontronite71.3.1a.3Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Columbite-(Fe)-Columbite-(Mn) Series'-
Opal
var. Opal-AN
-SiO2 · nH2O
'Zinnwaldite'-

List of minerals for each chemical element

HHydrogen
H ApatiteCa5(PO4)3(Cl/F/OH)
H BertranditeBe4(Si2O7)(OH)2
H BityiteLiCaAl2(AlBeSi2O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
H Opal var. Opal-ANSiO2 · nH2O
H OpalSiO2 · nH2O
LiLithium
Li BityiteLiCaAl2(AlBeSi2O10)(OH)2
BeBeryllium
Be BertranditeBe4(Si2O7)(OH)2
Be BerylBe3Al2(Si6O18)
Be BityiteLiCaAl2(AlBeSi2O10)(OH)2
OOxygen
O AlbiteNa(AlSi3O8)
O ApatiteCa5(PO4)3(Cl/F/OH)
O BertranditeBe4(Si2O7)(OH)2
O BerylBe3Al2(Si6O18)
O BityiteLiCaAl2(AlBeSi2O10)(OH)2
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
O Opal var. Opal-ANSiO2 · nH2O
O PucheriteBi(VO4)
O QuartzSiO2
O Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
O OpalSiO2 · nH2O
O RutileTiO2
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
AlAluminium
Al AlbiteNa(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al BityiteLiCaAl2(AlBeSi2O10)(OH)2
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
Si AlbiteNa(AlSi3O8)
Si BertranditeBe4(Si2O7)(OH)2
Si BerylBe3Al2(Si6O18)
Si BityiteLiCaAl2(AlBeSi2O10)(OH)2
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Si Opal var. Opal-ANSiO2 · nH2O
Si QuartzSiO2
Si OpalSiO2 · nH2O
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca BityiteLiCaAl2(AlBeSi2O10)(OH)2
TiTitanium
Ti Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
Ti RutileTiO2
VVanadium
V PucheriteBi(VO4)
FeIron
Fe NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Fe Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
NbNiobium
Nb Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
TaTantalum
Ta Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
BiBismuth
Bi PucheriteBi(VO4)

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.

Other Regions, Features and Areas containing this locality

Australia
Australian PlateTectonic Plate

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