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Bridge, P. J., Pryce, M. W. (1974) Magnesian collinsite from Milgun Station, Western Australia. Mineralogical Magazine, 39 (305) 577-579 doi:10.1180/minmag.1974.039.305.11

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Reference TypeJournal (article/letter/editorial)
TitleMagnesian collinsite from Milgun Station, Western Australia
JournalMineralogical Magazine
AuthorsBridge, P. J.Author
Pryce, M. W.Author
Year1974 (March)Volume39
Issue305
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_39/39-305-577.pdf+
DOIdoi:10.1180/minmag.1974.039.305.11Search in ResearchGate
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Mindat Ref. ID6735Long-form Identifiermindat:1:5:6735:9
GUID0
Full ReferenceBridge, P. J., Pryce, M. W. (1974) Magnesian collinsite from Milgun Station, Western Australia. Mineralogical Magazine, 39 (305) 577-579 doi:10.1180/minmag.1974.039.305.11
Plain TextBridge, P. J., Pryce, M. W. (1974) Magnesian collinsite from Milgun Station, Western Australia. Mineralogical Magazine, 39 (305) 577-579 doi:10.1180/minmag.1974.039.305.11
In(1974, March) Mineralogical Magazine Vol. 39 (305) Mineralogical Society
Abstract/NotesSummaryAn occurrence of magnesian collinsite has been found with other rare phosphates in a variscite deposit in semi-desert 15 km NW. of Milgun Station homestead (25° 6′ S., 118° 18′ E.), Western Australia. The collinsite occurs as tapering white 3-mm prisms, mammillated aggregates, and thin veinlets in cavities in mudstone. The crystals have two good cleavages, D2.93, subvitreous lustre, H4–5, white streak and are brittle. Optical properties α 1·632, β 1·642, γ 1·657, 2Vγ , ≈ 80°. The mineral is triclinic with a 5·734, b 6·780, c 5·441 Å, α97·29° β 108·56°, γ 107·28°. X-ray powder data given, the lines are similar to P.D.F. card 14–314 but new cell gives better indexing. Chemical analysis by F. R. W. Lindsey gave FeO 0·07, MgO 11·3, CaO 35·2, Na2O 0·01, K2O 0·02, P2O5 41·2, H2O+10·7, H2O− 0·15, F0·02, SiO2 (quartz impurity) 1·31, Al, Mn, Zn, SO3 not detected, net sum 99·97, close to Ca2Mg(PO4)2.2H2O, after deduction of moisture and quartz impurity. Typical specimens are preserved at the Government Chemical Laboratories, Perth, Western Australia.

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LocalityCitation Details
Milgun Variscite Mine, Milgun Station, Meekatharra Shire, Western Australia, Australia

Mineral Pages

MineralCitation Details
Collinsite

Mineral Occurrences

LocalityMineral(s)
Milgun Variscite Mine, Milgun Station, Meekatharra Shire, Western Australia, Australia Mitridatite


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