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Monazite-(Sm)

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About Monazite-(Sm)Hide

Formula:
Sm(PO4)
Colour:
white to yellow
Lustre:
Vitreous, Greasy
Specific Gravity:
5.51 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
From the Greek μουάζειυ "to be solitary" in allusion to the rarity of its presence in the first known localities, plus "Sm" as the Sm-dominant member of the Monazite series.
Monazite Group. Second samarium mineral beside florencite-(Sm).


Classification of Monazite-(Sm)Hide

Approved
Approval Year:
2001
8.AD.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations

Physical Properties of Monazite-(Sm)Hide

Vitreous, Greasy
Transparency:
Transparent, Translucent
Colour:
white to yellow
Streak:
white
Cleavage:
Distinct/Good
Density:
5.51 g/cm3 (Calculated)

Chemical Properties of Monazite-(Sm)Hide

Formula:
Sm(PO4)

Crystallography of Monazite-(Sm)Hide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Cell Parameters:
a = 6.725 Å, b = 6.936 Å, c = 6.448 Å
β = 104.02°
Ratio:
a:b:c = 0.97 : 1 : 0.93
Unit Cell V:
291.8 ų
Z:
4

Type Occurrence of Monazite-(Sm)Hide

Synonyms of Monazite-(Sm)Hide

Other Language Names for Monazite-(Sm)Hide

Simplified Chinese:钐独居石
Traditional Chinese:釤獨居石

Relationship of Monazite-(Sm) to other SpeciesHide

Member of:
Other Members of this group:
CheraliteCaTh(PO4)2Mon. 2/m
Gasparite-(Ce)Ce(AsO4)
Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
Monazite-(La)La(PO4)
Monazite-(Nd)Nd(PO4)
RooseveltiteBi(AsO4)Mon. 2/m
Unnamed (Gd-dominant monazite)(Gd,Y,Dy,Sm,Nd,Th,Ca)(PO4)

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cleavelandite3 photos of Monazite-(Sm) associated with Cleavelandite on mindat.org.
Lepidolite1 photo of Monazite-(Sm) associated with Lepidolite on mindat.org.
Quartz1 photo of Monazite-(Sm) associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AD.05NahpoiteNa2HPO4Mon. 2/m : P21/m
8.AD.10MonetiteCa(HPO4)Tric. 1
8.AD.10WeiliteCa(HAsO4)Tric. 1 : P1
8.AD.10ŠvenekiteCa(H2AsO4)2Tric. 1 : P1
8.AD.15Archerite(K,NH4)(H2PO4)Tet. 4 2m : I4 2d
8.AD.15Biphosphammite(NH4,K)(H2PO4)Tet. 4 2 2 : I41 2 2
8.AD.20Phosphammite(NH4)2(HPO4)Mon. 2/m : P21/b
8.AD.25BuchwalditeNaCa(PO4)Orth. mm2 : Pmn21
8.AD.30SchultenitePb(HAsO4)Mon. 2/m : P2/b
8.AD.35Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35DreyeriteBi(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Y)Y(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Xenotime-(Y)Y(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35PretuliteSc(PO4)Tet.
8.AD.35Xenotime-(Yb)Yb(PO4)Tet.
8.AD.35Wakefieldite-(La)La(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.40PucheriteBi(VO4)Orth. mmm (2/m 2/m 2/m)
8.AD.45XimengiteBi(PO4)Trig.
8.AD.50Gasparite-(Ce)Ce(AsO4)
8.AD.50Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
8.AD.50Monazite-(La)La(PO4)
8.AD.50Monazite-(Nd)Nd(PO4)
8.AD.50RooseveltiteBi(AsO4)Mon. 2/m
8.AD.50CheraliteCaTh(PO4)2Mon. 2/m
8.AD.50UM2005-35-VO:CaFePSiTh(Th,Ca)(VO4,SiO4,PO4)
8.AD.55TetrarooseveltiteBi(AsO4)Tet.
8.AD.60Chursinite(Hg+2)0.5Hg2+(AsO4)Mon. 2/m : P21/b
8.AD.65ClinobisvaniteBi(VO4)Mon. 2/m

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 Monazite-(Sm)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Masau, M., P. Cerny, M.A. Cooper, R. Chapman & J. Grice (2002): Monazite-(Sm), a new member of the monazite group from the Annie Claim #3 granitic pegmatite, southeastern Manitoba. Canadian Mineralogist: 40: 1649-1655.
Mitt. Öster. Mineral. Gesell. (2001): 146: 189-190.

Internet Links for Monazite-(Sm)Hide

Localities for Monazite-(Sm)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. ⓘ - 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.
Argentina
 
  • Salta
M. del Blanco, H. Echeveste y R. Plá (1996). Mineralización de tierras raras y torio en carbonatitas, sierra de Cobres, provincias de Salta y Jujuy. 3ra Reunión de Mineralogía y Metalogenia. Instituto de Recursos Minerales, UNLP. Publicación 5:91-97.
      • Cobres
M. del Blanco, H. Echeveste, H. y R. Plá (1996). Mineralización de tierras raras y torio en carbonatitas, sierra de Cobres, provincias de Salta y Jujuy. 3ra Reunión de Mineralogía y Metalogenia. Instituto de Recursos Minerales, UNLP. Publicación 5:91-97.
Canada (TL)
 
  • Manitoba
    • Bird River Greenstone Belt
M. Masau, P. Cerny, M.A. Cooper, R. Chapman & J. Grice (2002) Can. Mineral. 40, 1649-1655
Russia
 
  • Eastern-Siberian Region
    • Tuva Republic
      • Sayan Mts
        • Eastern Sayan
P.M. Kartashov data
USA
 
  • Colorado
    • Gunnison Co.
      • Quartz Creek Pegmatite District
        • Brown Derby Mine
Collected by Rudy Bolona; confirmed analysis by George B. Morgan University of Oklahoma, Oct. 2009.
Mineral and/or Locality  
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