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Krasnovite

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Big Photo

Cerro Sapo, Ayopaya Province, Cochabamba Department, Bolivia
© 2010, JGW

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Formula:
Ba(Al,Mg)(PO
 
4
,CO
 
3
)(OH)
 
2
 · H
 
2
O
System:OrthorhombicLustre:Silky
Hardness:2
Name:For N. I. Krasnova (1941-), mineralogist at St. Petersburg University.
This page provides mineralogical data about Krasnovite.

Classification of Krasnovite

IMA status:Approved 1991
Strunz 8th edition ID:7/D.50-25
Nickel-Strunz 10th (pending) edition ID:8.DK.35

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
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Type Occurrence of Krasnovite

Type Locality:Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1992

Physical Properties of Krasnovite

Lustre:Silky
Hardness (Mohs):2

Crystallography of Krasnovite

Crystal System:Orthorhombic

Optical Data of Krasnovite

Type:Biaxial (-)
RI values: nα = 1.616 nβ = 1.629 nγ = 1.640
2V:Measured: 70° to 90°, Calculated: 84°
Maximum Birefringence:δ = 0.024

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

Chemical Properties of Krasnovite

Formula:
Ba(Al,Mg)(PO
 
4
,CO
 
3
)(OH)
 
2
 · H
 
2
O
Essential elements:Al, Ba, H, O, P
All elements listed in formula:Al, Ba, C, H, Mg, O, P

Relationship of Krasnovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DK.Richelsdorfite
Ca
 
2
Cu
 
5
Sb(AsO
 
4
)
 
4
(OH)
 
6
Cl · 6H
 
2
O
8.DK.10Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 5H
 
2
O
8.DK.10Pharmacosiderite
KFe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
8.DK.10Natropharmacosiderite
(Na,K)Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
8.DK.10Hydroniumpharmacosiderite
(H
 
3
O)Fe
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.12Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
8.DK.12Natropharmacoalumite
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.12Bariopharmacoalumite
BaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.15Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Natrodufrénite
NaFe
2+
 
(Fe
3+
 
,Al)
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Matioliite
NaMgAl
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Gayite
NaMn
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.20Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
 · 3H
 
2
O
8.DK.25Bleasdaleite
(Ca,Fe
3+
 
)
 
2
Cu
 
5
(Bi,Cu)(PO
 
4
)
 
4
(H
 
2
O,OH,Cl)
 
13
8.DK.30Matulaite
(Fe
3+
 
,Al)Al
 
7
(PO
 
4
)
 
4
(PO
 
3
OH)
 
2
(OH)
 
8
(H
 
2
O)
 
8
 · 8H
 
2
O

Other Names for Krasnovite

Synonyms:
IMA1991-020
Other Languages:
German:Krasnovit
Spanish:Krasnovita

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 Krasnovite

Reference List:

- +
Britvin, S. N., Pakhomovskii, Ya. A. and Bogdanova, A. N. (1996): Krasnovite, Ba(Al,Mg)(PO4,CO3)(OH)2•H2O - a new mineral. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 125: 110-112.

Mineralogical Record: 28: 221-222.

Internet Links for Krasnovite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Krasnovite details from Handbook of Mineralogy (PDF)
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    • Localities for Krasnovite

    Hide Locality List
    (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.
    Bolivia
     
    • Cochabamba Department
      • Ayopaya Province
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Kovdor Massif
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
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