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Mckelveyite-(Nd)

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Formula:
(Ba,Sr)(Nd,Ce,La)(CO3)2 · 4-10H2O
Colour:
Greenish yellow-brown.
Hardness:
3 - 3½
Crystal System:
Triclinic
(Formula is not charge-balanced, and does not correspond to that of the approved mckelveyite-(Y).)


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Classification of Mckelveyite-(Nd)Hide

Notes:
Rejected by the IMA
5.CC.05

5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
15.3.4.3

15 : HYDRATED NORMAL CARBONATES
3 : AmBn(XO3)p·xH2O, with (m+n):p = 1:1

Physical Properties of Mckelveyite-(Nd)Hide

Transparency:
Transparent, Opaque
Colour:
Greenish yellow-brown.
Hardness:
3 - 3½ on Mohs scale

Optical Data of Mckelveyite-(Nd)Hide

Type:
Biaxial (-)
RI values:
nα = 1.556 nβ = 1.650 nγ = 1.653
2V:
Measured: 10° to 13°, Calculated: 18°
Max Birefringence:
δ = 0.097
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v strong

Chemical Properties of Mckelveyite-(Nd)Hide

Formula:
(Ba,Sr)(Nd,Ce,La)(CO3)2 · 4-10H2O

Crystallography of Mckelveyite-(Nd)Hide

Crystal System:
Triclinic

Synonyms of Mckelveyite-(Nd)Hide

Other Language Names for Mckelveyite-(Nd)Hide

Related Minerals - Nickel-Strunz GroupingHide

5.CC.05Donnayite-(Y)NaCaSr3Y(CO3)6 · 3H2OTric. 1 : P1
5.CC.05EwalditeBa(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2OHex. 6mm
5.CC.05Mckelveyite-(Y)NaCaBa3Y(CO3)6 · 3H2OTric. 1 : P1
5.CC.05WeloganiteNa2Sr3Zr(CO3)6 · 3H2OTric. 1 : P1
5.CC.10Tengerite-(Y)Y2(CO3)3 · 2-3H2OOrth. mmm (2/m 2/m 2/m) : Pnnm
5.CC.15Kimuraite-(Y)Ca(Y,Nd)2(CO3)4 · 6H2OOrth.
5.CC.15Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2OOrth.
5.CC.20Shomiokite-(Y)Na3Y[CO3]3 · 3H2OOrth.
5.CC.25Calkinsite-(Ce)(Ce,La)2(CO3)3 · 4H2OOrth.
5.CC.25Lanthanite-(Ce)(Ce,La,Nd)2(CO3)3 · 8H2OOrth. mmm (2/m 2/m 2/m)
5.CC.25Lanthanite-(La)(La,Ce)2(CO3)3 · 8H2OOrth.
5.CC.25Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2OOrth.
5.CC.30Adamsite-(Y)NaY[CO3]2 · 6H2OTric. 1 : P1
5.CC.35Decrespignyite-(Y)Cu(Y,REE)4(CO3)4(OH)5Cl · 2H2OMon.
5.CC.40Galgenbergite-(Ce)Ca(Ce,La,Nd)2(CO3)4 · H2OTric.

Related Minerals - Dana Grouping (8th Ed.)Hide

15.3.4.1Donnayite-(Y)NaCaSr3Y(CO3)6 · 3H2OTric. 1 : P1
15.3.4.2Mckelveyite-(Y)NaCaBa3Y(CO3)6 · 3H2OTric. 1 : P1
15.3.4.4WeloganiteNa2Sr3Zr(CO3)6 · 3H2OTric. 1 : P1

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.

References for Mckelveyite-(Nd)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1993): 78: 237.

Internet Links for Mckelveyite-(Nd)Hide

Localities for Mckelveyite-(Nd)Hide

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. β“˜ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
      • Northern Karelia
ZVMO 119(6):76 (1990)
Mineral and/or Locality  
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