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Mckelveyite-(Y)-2M

A structural variant of Mckelveyite-(Y)
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07982850017271951386123.jpg
Mckelveyite-(Y)-2M, etc.

IMI Fabi Mine, Mt. Motta, Lanzada, Sondrio Province, Lombardy, Italy
07982850017271951386123.jpg
Mckelveyite-(Y)-2M, etc.

IMI Fabi Mine, Mt. Motta, Lanzada, Sondrio Province, Lombardy, Italy
02810780017271925185138.jpg
Mckelveyite-(Y)-2M, etc.

IMI Fabi Mine, Mt. Motta, Lanzada, Sondrio Province, Lombardy, Italy
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About Mckelveyite-(Y)-2MHide

Formula:
NaCaBa3Y(CO3)6 · 3H2O
Crystal System:
Monoclinic
A polytype of Mckelveyite-(Y)


Unique IdentifiersHide

Mindat ID:
41777
Long-form identifier:
mindat:1:1:41777:4

Similar NamesHide

MckelveyiteA synonym
Mckelveyite-(Nd)A valid IMA mineral speciesNaCaBa3Nd(CO3)6 · 3H2O

Chemistry of Mckelveyite-(Y)-2MHide

Mindat Formula:
NaCaBa3Y(CO3)6 · 3H2O
Element Weights:
Element% weight
Ba42.123 %
O34.353 %
Y9.090 %
C7.368 %
Ca4.098 %
Na2.351 %
H0.618 %

Calculated from ideal end-member formula.
Elements listed:
Ba, C, Ca, H, Na, O, Y - search for minerals with similar chemistry

Crystallography of Mckelveyite-(Y)-2MHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bb
Setting:
Cc
Cell Parameters:
a = 15.8213(7) Å, b = 9.1364(4) Å, c = 13.7522(6) Å
β = 112.44(1)°
Ratio:
a:b:c = 1.732 : 1 : 1.505
Unit Cell V:
1,837.35 ų (Calculated from Unit Cell)
Twinning:
Twinned about a pseudo-threefold axis.
Comment:
Pseudo-rhombohedral.

Synonyms of Mckelveyite-(Y)-2MHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Mckelveyite-(Y)-2M associated with DolomiteCaMg(CO3)2

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Mckelveyite-(Y)-2MHide

References for Mckelveyite-(Y)-2MHide

Localities for Mckelveyite-(Y)-2MHide

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

- 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.
Italy
 
  • Lombardy
    • Sondrio Province
      • Lanzada
        • Mt. Motta
pubsites.uws.edu.au (2008)
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