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Machells Pyramid, Walgidee Hills, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australiai
Regional Level Types
Machells Pyramid- not defined -
Walgidee HillsGroup of Hills
Noonkanbah Station- not defined -
Derby-West Kimberley ShireShire
Western AustraliaState
AustraliaCountry

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Latitude & Longitude (WGS84):
18° 22' 12'' South , 124° 41' 4'' East
Latitude & Longitude (decimal):
-18.37009,124.68445
GeoHash:
G#: qu8xmrb6q
GRN:
S13E84
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
126848
Long-form identifier:
mindat:1:2:126848:8
GUID (UUID V4):
0


The hill forms a prominent vertical sided plug of olivine-diopside-leucite lamproite, 30 metres above a conical plinth of tuffs and flat lying sediments. The site contains abundant phenocrysts up to 2 mms long of diopside, said by the source to be distinctive.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 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:

ⓘ Baryte
Formula: BaSO4
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ 'Fayalite-Forsterite Series'
ⓘ Leucite
Formula: K(AlSi2O6)
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Priderite
Formula: K(Ti4+7Fe3+)O16
ⓘ Richterite
Formula: Na(NaCa)Mg5(Si8O22)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘPriderite4.DK.05bK(Ti4+7Fe3+)O16
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘDiopside9.DA.15CaMgSi2O6
ⓘRichterite9.DE.20Na(NaCa)Mg5(Si8O22)(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘLeucite9.GB.05K(AlSi2O6)
Unclassified
ⓘ'Fayalite-Forsterite Series'-

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ RichteriteNa(NaCa)Mg5(Si8O22)(OH)2
OOxygen
Oⓘ BaryteBaSO4
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ DiopsideCaMgSi2O6
Oⓘ LeuciteK(AlSi2O6)
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ PrideriteK(Ti74+Fe3+)O16
Oⓘ RichteriteNa(NaCa)Mg5(Si8O22)(OH)2
Oⓘ Fayalite-Forsterite Series
NaSodium
Naⓘ RichteriteNa(NaCa)Mg5(Si8O22)(OH)2
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ RichteriteNa(NaCa)Mg5(Si8O22)(OH)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ LeuciteK(AlSi2O6)
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Siⓘ DiopsideCaMgSi2O6
Siⓘ LeuciteK(AlSi2O6)
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ RichteriteNa(NaCa)Mg5(Si8O22)(OH)2
Siⓘ Fayalite-Forsterite Series
SSulfur
Sⓘ BaryteBaSO4
KPotassium
Kⓘ LeuciteK(AlSi2O6)
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ PrideriteK(Ti74+Fe3+)O16
CaCalcium
Caⓘ DiopsideCaMgSi2O6
Caⓘ RichteriteNa(NaCa)Mg5(Si8O22)(OH)2
TiTitanium
Tiⓘ PrideriteK(Ti74+Fe3+)O16
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ PrideriteK(Ti74+Fe3+)O16
Feⓘ Fayalite-Forsterite Series
BaBarium
Baⓘ BaryteBaSO4

Other Regions, Features and Areas containing this locality

Australia
Australian PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Jaques, A. L., Lewis, J. D., Smith, C. B. (1986) The kimberlites and lamproites of Western Australia. Bulletin 132. Geological Survey of Western Australia
Department of Mines Western Australia (1990) Geology and Mineral Resources of Western Australia, Geological Survey of Western Australia, Mines department Western Australia, State Government of Western Australia, 1990.
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