Mundrabillaite

A valid IMA mineral species

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Mundrabillaite

Osh Region, Kyrgyzstan

Mundrabillaite

Osh Region, Kyrgyzstan

Mundrabillaite

Osh Region, Kyrgyzstan

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About MundrabillaiteHide

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Formula:

(NH₄)₂Ca(PO₃OH)₂ · H₂O

Colour:

Colourless

Lustre:

Earthy

Hardness:

1 - 2

Specific Gravity:

2.05

Crystal System:

Monoclinic

Name:

Named for the nearby pastoral lease, Mundrabilla Station, Australia, the type locality.

Type Locality:

ⓘ Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Dimorph of:

Swaknoite

This page provides mineralogical data about Mundrabillaite.

Unique IdentifiersHide

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Mindat ID:

2809

Long-form identifier:

mindat:1:1:2809:3

GUID
(UUID V4):

942656e7-97ed-4ef3-8a79-c4a69f17ed56

Classification of MundrabillaiteHide

Mineral SymbolsHide

Physical Properties of MundrabillaiteHide

Optical Data of MundrabillaiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.521 - 1.522 n_β = 1.542 - 1.544 n_γ = 1.551 - 1.552

2V:

Measured: 65° , Calculated: 60° to 64°

Max Birefringence:

δ = 0.030

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Low

Dispersion:

relatively weak

Optical Extinction:

extinction oblique, angle + 26(1)°

Chemical Properties of MundrabillaiteHide

Crystallography of MundrabillaiteHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of MundrabillaiteHide

Synonyms of MundrabillaiteHide

Other Language Names for MundrabillaiteHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for MundrabillaiteHide

References for MundrabillaiteHide

Reference List:

Frazier, A.W., Lehr, J.R., Smith, J.P. (1964) Fertilizer Reaction, Calcium Ammonium Orthophosphates. Journal of Agricultural and Food Chemistry: 12(3): 198–201.(synthetic)

Bridge, P.J. (1977) Archerite, (K,NH4)H2PO4, a New Mineral from Madura, Western Australia. Mineralogical Magazine: 41: 33-35.

Bridge, P.J., Clarke, R.M. (1983) Mundrabillaite - a new cave mineral from Western Australia. Mineralogical Magazine: 47: 80-81.

Bridge, P.J., Clarke, R.M. (1983) Mundrabillaite - a new cave mineral from Western Australia. Mineralogical Magazine: 47: 80-81.

Dunn, P.J., Cabri, L.J., Chao, G.Y., Fleischer, M., Francis, C.A., Grice, J.D., Jambor, J.L., Pabst, A. (1984) New mineral names. American Mineralogist: 69: 406-412 (407).

Localities for MundrabillaiteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Australia (TL)
Western Australia Dundas Shire Madura Roadhouse ⓘ Petrogale Cave (TL)	Bridge, P.J., Clarke, R.M. (1983) Mundrabillaite - a new cave mineral from Western Australia. Mineralogical Magazine: 47: 80-81.
Kyrgyzstan
ⓘ Osh Region	Steffen Möckel EDS analysis (2005)
Namibia
Khomas Region Windhoek Rural ⓘ Arnhem Cave	Martini, J.E.J. (1992) Swaknoite [Ca(NH4)2·(HPO4)2·H2O, orthorhombic]: A new mineral from Arnhem cave, Namibia. Bulletin of the South African Speleological Association: 32: 72-74.