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Morelandite

Formula:
(Ba,Ca,Pb)
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
Hardness:4½


Apatite Group. The barium analogue of Mimetite.

Classification of Morelandite

IMA status:Approved 1977
Strunz 8th edition ID:7/B.39-130
Nickel-Strunz 10th (pending) edition ID:8.BN.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
Dana 8th edition ID:41.8.5.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
Hey's CIM Ref.:22.2.8

22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
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Type Occurrence of Morelandite

Type Locality:Jakobsberg Mine, Nordmark, Filipstad, Värmland, Sweden

Physical Properties of Morelandite

Hardness (Mohs):4½

Optical Data of Morelandite

Type:Uniaxial (+)
RI values: nω = 1.880 nε = 1.884
Maximum Birefringence:δ = 0.004

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High

Chemical Properties of Morelandite

Formula:
(Ba,Ca,Pb)
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
Essential elements:As, Ba, Cl, O
All elements listed in formula:As, Ba, Ca, Cl, O, P, Pb

Relationship of Morelandite to other Species

Related to:
  • Apatite Supergroup
    • Related Minerals - Nickel-Strunz Grouping):

    - +
    8.BN.05Alforsite
    Ba
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Belovite-(Ce)
    NaSr
     
    3
    		(Ce,La)[(F,OH)|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Carbonate-rich Apatite-(CaF)
    Ca
     
    5
    		[(F,O)|(PO
     
    4
    		,CO
     
    3
    		)
     
    3
    		]
    8.BN.05Carbonate-rich Apatite-(CaOH)
    Ca
     
    5
    		[(OH,O)|(PO
     
    4
    		,CO
     
    3
    		)
     
    3
    		]
    8.BN.05Apatite-(CaCl)
    Ca
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Clinomimetite
    Pb
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    8.BN.05Fermorite
    (Ca,Sr)
     
    5
    		(AsO
     
    4
    		,PO
     
    4
    		)
     
    3
    		(OH)
    8.BN.05Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Hedyphane
    Pb
     
    3
    		Ca
     
    2
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    8.BN.05Apatite-(CaOH)
    Ca
     
    5
    		[OH|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Johnbaumite
    Ca
     
    5
    		[OH|(AsO
     
    4
    		)
     
    3
    		]
    8.BN.05Mimetite
    Pb
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    8.BN.05Pyromorphite
    Pb
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Apatite-(SrOH)
    (Sr,Ca)
     
    5
    		(PO
     
    4
    		)
     
    3
    		(OH,F)
    8.BN.05Svabite
    Ca
     
    5
    		[(F,Cl,OH)|(AsO
     
    4
    		)
     
    3
    		]
    8.BN.05Turneaureite
    Ca
     
    5
    		[Cl|(AsO
     
    4
    		,PO
     
    4
    		)
     
    3
    		]
    8.BN.05Vanadinite
    Pb
     
    5
    		[Cl|(VO
     
    4
    		)
     
    3
    		]
    8.BN.05Belovite-(La)
    NaSr
     
    3
    		(La,Ce)[(F,OH)|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Deloneite-(Ce)
    NaCa
     
    2
    		SrCe(PO
     
    4
    		)
     
    3
    		F
    8.BN.05Fluorcaphite
    (Ca,Sr,Ce,Na)
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Kuannersuite-(Ce)
    NaBa
     
    3
    		(Ce,Nd,La)[(F,Cl)|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05Apatite-(CaOH)-M
    (Ca,Na)
     
    3
    		Ca
     
    2
    		[(OH,Cl)|(PO
     
    4
    		,SO
     
    4
    		)
     
    3
    		]
    8.BN.05Phosphohedyphane
    Pb
     
    3
    		Ca
     
    2
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    8.BN.05IMA2008-009
    Sr
     
    5
    		(PO
     
    4
    		)
     
    3
    		F
    8.BN.10Arctite
    Na
     
    2
    		Ca
     
    4
    		(PO
     
    4
    		)
     
    3
    		F
    Related Minerals - Hey's Index Grouping:

    - +
    22.2.1Sampleite
    NaCaCu
     
    5
    		[Cl|(PO
     
    4
    		)
     
    4
    		] · 5H
     
    2
    		O
    22.2.2Lavendulan
    NaCaCu
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    4
    		] · 5H
     
    2
    		O
    22.2.3Apatite-(CaCl)
    Ca
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    22.2.4Turneaureite
    Ca
     
    5
    		[Cl|(AsO
     
    4
    		,PO
     
    4
    		)
     
    3
    		]
    22.2.5Shubnikovite
    Ca
     
    2
    		Cu
     
    8
    		[Cl|OH|(AsO
     
    4
    		)
     
    6
    		] · 7H
     
    2
    		O
    22.2.6Richelsdorfite
    Ca
     
    2
    		Cu
     
    5
    		Sb[Cl|(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    4
    		] · 6H
     
    2
    		O
    22.2.7Alforsite
    Ba
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    22.2.9Pyromorphite
    Pb
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    22.2.10Mimetite
    Pb
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    22.2.11Clinomimetite
    Pb
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    22.2.12Sahlinite
    Pb
     
    14
    		[O
     
    9
    		|(AsO
     
    4
    		)
     
    2
    		|Cl
     
    4
    		]
    22.2.13Georgiadèsite
    Pb
     
    16
    		[(OH)
     
    6
    		|Cl
     
    14
    		|(AsO
     
    4
    		)
     
    4
    		]
    22.2.14Vanadinite
    Pb
     
    5
    		[Cl|(VO
     
    4
    		)
     
    3
    		]
    22.2.15Kombatite
    Pb
     
    14
    		[O
     
    9
    		|(VO
     
    4
    		)
     
    2
    		|Cl
     
    4
    		]
    22.2.16Leningradite
    PbCu
     
    3
    		[Cl|VO
     
    4
    		]
     
    2
    22.2.17Hedyphane
    Pb
     
    3
    		Ca
     
    2
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    22.2.18Nealite
    Pb
     
    4
    		Fe
    2+
     
    		[Cl
     
    2
    		|AsO
     
    3
    		]
     
    2
    		 · 2H
     
    2
    		O

    Other Names for Morelandite

    Synonyms:
    IMA1977-035
    Other Languages:
    German:Morelandit
    Spanish:Morelandita

    Other Information

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

    References for Morelandite

    Reference List:American Mineralogist (1980): 65: 207.

    Articles/Blogs about Morelandite

    Internet Links for Morelandite

    Search Engines:
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    • External Links:
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  • Look for Morelandite on Wikipedia
  • Look for Morelandite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Morelandite in the Natural History Museum (London) online catalogue
  • Morelandite details from Handbook of Mineralogy (PDF)
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    Localities for Morelandite

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    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Sweden
     
    • Värmland
      • Filipstad
        • Nordmark
    		Can.Min.(1978) 17, 601-604
    Mineral and/or Locality
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