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Rimkorolgite

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Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Stephan Wolfsried

Show Rimkorolgite Photos (7)
Formula:
(Mg,Mn)
 
5
(Ba,Sr,Ca)(PO
 
4
)
 
4
·8H
 
2
O
System:OrthorhombicColour:Yellow-brown to dirty ...
Lustre:VitreousHardness:3
Name:Named after Ol'ga Mikhailovna Rimskaya -Korstakova, Professor of Mineralogy.


Classification of Rimkorolgite

IMA status:Approved
Strunz 8th edition ID:7/C.20-10
Nickel-Strunz 10th (pending) edition ID:8.CH.45

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
H : With large and medium-sized cations, RO4:H2O < 1:1
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Type Occurrence of Rimkorolgite

Type Locality:Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1995

Physical Properties of Rimkorolgite

Lustre:Vitreous
Colour:Yellow-brown to dirty pink
Streak:White
Hardness (Mohs):3

Crystallography of Rimkorolgite

Crystal System:Orthorhombic
Cell Parameters:a = 12.83Å, b = 8.33Å, c = 18.31Å
Ratio:a:b:c = 1.54 : 1 : 2.198
Unit Cell Volume:V 1,956.86 ų (Calculated from Unit Cell)

Optical Data of Rimkorolgite

Type:Biaxial (+)
RI values: nα = 1.552 nβ = 1.552 nγ = 1.558
2V:Measured: 23°
Maximum Birefringence:δ = 0.006

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:weak to distinct

Chemical Properties of Rimkorolgite

Formula:
(Mg,Mn)
 
5
(Ba,Sr,Ca)(PO
 
4
)
 
4
·8H
 
2
O
Essential elements:Ba, H, Mg, O, P
All elements listed in formula:Ba, Ca, H, Mg, Mn, O, P, Sr

Relationship of Rimkorolgite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.CH.05Walentaite
H(Ca,Mn
2+
 
,Fe
2+
 
)Fe
3+
3
[(AsO
 
4
,PO
 
4
)]
 
4
 · 7H
 
2
O
8.CH.10Anapaite
Ca
 
2
Fe
2+
 
[PO
 
4
]
 
2
 · 4H
 
2
O
8.CH.15Picropharmacolite
Ca
 
4
Mg[(HAsO
 
4
)
 
2
|(AsO
 
4
)
 
2
] · 11H
 
2
O
8.CH.20Dittmarite
NH
 
4
MgPO
 
4
·H
 
2
O
8.CH.20Niahite
(NH
 
4
)(Mn
2+
 
,Mg)[PO
 
4
] · H
 
2
O
8.CH.25Francoanellite
K
 
3
Al
 
5
[(HPO
 
4
)
 
3
|PO
 
4
]
 
2
 · 12H
 
2
O
8.CH.25Taranakite
(K,NH
 
4
)Al
 
3
(PO
 
4
)
 
3
OH·9H
 
2
O
8.CH.30Schertelite
(NH
 
4
)
 
2
MgH
 
2
(PO
 
4
)
 
2
·4H
 
2
O
8.CH.35Hannayite
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
·8H
 
2
O
8.CH.40Struvite
NH
 
4
MgPO
 
4
·6H
 
2
O
8.CH.40Struvite-K
KMg(PO
 
4
)·6H
 
2
O
8.CH.50Bakhchisaraitsevite
Na
 
2
Mg
 
5
(PO
 
4
)
 
4
·7H
 
2
O
8.CH.55Fahleite
Zn
 
5
CaFe
 
2
(AsO
 
4
)
 
6
·14H
 
2
O
8.CH.55Smolyaninovite
8.CH.55Smolianinovite
(Co,Ni,Mg,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(AsO
 
4
)
 
4
·11H
 
2
O
8.CH.60Barahonaite-(Al)
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Al
 
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
·nH
 
2
O
8.CH.60Barahonaite-(Fe)
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Fe
3+
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
·nH
 
2
O

Other Names for Rimkorolgite

Synonyms:
IMA1990-032
German names:
Rimkorolgit
Russian names:
Римкорольгит
Spanish names:
Rimkorolgita

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 Rimkorolgite

Reference List:Zapiski Vsesoyuznyi Mineralogicheskoe Obshchestva: 124(1): 90-95.

Mineralogical Record: 27: 305.

European Journal of Mineralogy (2002): 14: 397-402.

Internet Links for Rimkorolgite

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    Localities for Rimkorolgite

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    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Kovdor Massif
    		[MinRec 27:305]
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