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Lovdarite

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Yubileinaya (Yubileinoye; Jubilejnaja) pegmatite, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Knut Eldjarn

Show Lovdarite Photos (2)
Formula:
(Na,K,Ca)
 
4
(Be,Al)
 
2
Si
 
6
O
 
16
·4H
 
2
O
System:OrthorhombicColour:Translucent, white, ...
Hardness:5 - 6
This page provides mineralogical data about Lovdarite.

Classification of Lovdarite

IMA status:Approved
Strunz 8th edition ID:8/J.17-10
Nickel-Strunz 10th (pending) edition ID:9.GF.15

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
F : Other Rare Zeolites
Dana 8th edition ID:78.6.2.1

78 : Unclassified Silicates
6 :
Hey's CIM Ref.:16.6.6

16 : Silicates Containing Aluminum and other Metals
6 : Aluminosilicates of Be
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Type Occurrence of Lovdarite

Type Locality:Yubileinaya (Yubileinoye; Jubilejnaja) pegmatite, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1973

Physical Properties of Lovdarite

Colour:Translucent, white, yellowish.
Hardness (Mohs):5 - 6

Crystallography of Lovdarite

Crystal System:Orthorhombic
Cell Parameters:a = 39.57Å, b = 6.93Å, c = 7.15Å
Ratio:a:b:c = 5.71 : 1 : 1.032
Unit Cell Volume:V 1,960.67 ų (Calculated from Unit Cell)

Optical Data of Lovdarite

Type:Biaxial (+)
RI values: nα = 1.513 nβ = 1.516 nγ = 1.518
2V:Measured: 90° , Calculated: 78°
Maximum Birefringence:δ = 0.005

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

Chemical Properties of Lovdarite

Formula:
(Na,K,Ca)
 
4
(Be,Al)
 
2
Si
 
6
O
 
16
·4H
 
2
O
Essential elements:Be, H, Na, O, Si
All elements listed in formula:Al, Be, Ca, H, K, Na, O, Si
Common Impurities:Ti,Al,Fe,Mn,Mg,Ca,Ba,F,P

Relationship of Lovdarite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.GF.05Terranovaite
(Na,Ca)
 
8
(Si
 
68
Al
 
12
)O
 
160
·29H
 
2
O
9.GF.10Gottardiite
Na
 
3
Mg
 
3
Ca
 
5
Al
 
19
Si
 
117
O
 
272
·93H
 
2
O
9.GF.20Gaultite
Na
 
4
Zn
 
2
Si
 
7
O
 
18
·5H
 
2
O
9.GF.25Chiavennite
CaMnBe
 
2
Si
 
5
O
 
13
(OH)
 
2
·2H
 
2
O
9.GF.30Tschernichite
(Ca,Na
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 4-8H
 
2
O
9.GF.35Mutinaite
Na
 
3
Ca
 
4
Si
 
85
Al
 
11
O
 
192
·60H
 
2
O
9.GF.40Tschörtnerite
Ca
 
4
(Ca,Sr,K,Ba)
 
3
Cu
 
3
[(OH)
 
2
|Al
 
3
Si
 
3
O
 
12
]
 
4
 · nH
 
2
O
9.GF.50Thornasite
(Na,K)Th,Si
 
11
(O,OH,F,Cl)
 
25
·8H
 
2
O
9.GF.55Direnzoite
NaK
 
6
MgCa
 
2
(Al
 
13
Si
 
47
O
 
120
)·36H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
16.6.1Beryl
Be
 
3
Al
 
2
Si
 
6
O
 
18
16.6.2Euclase
BeAl[OH|SiO
 
4
]
16.6.3Bavenite
Ca
 
4
Be
 
2
Al
 
2
Si
 
9
O
 
26
(OH)
 
2
16.6.4Aminoffite
Ca
 
2
(Be,Al)Si
 
2
O
 
7
(OH)·H
 
2
O
16.6.5Milarite
K
 
2
Ca
 
4
Al
 
2
Be
 
4
Si
 
24
O
 
60
·H
 
2
O
16.6.7Surinamite
(Mg,Fe)
 
3
Al
 
4
BeSi
 
3
O
 
16
16.6.8Ferrotaaffeite-6N'3S
(Be,Zn,Mg)FeAl
 
4
O
 
8

Other Names for Lovdarite

Other Languages:
German:Lovdarit
Russian:Ловдарит
Spanish:Lovdarita

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 Lovdarite

Reference List:Merlino S.(1990): Lovdarite: structural features and OD character. European Journal of Mineralogy: 2: 809-817.

Internet Links for Lovdarite

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    Localities for Lovdarite

    Hide Locality List
    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.
    (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.
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Ilimaussaq complex
    		O.V. Petersen et al. (2002) Can. Mineral. 40, 173-181
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Lovozero Massif
            • Karnasurt Mt
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    USA
     
    • New Mexico
      • Colfax Co.
        • Springer
          • Point of Rocks Mesa (Pecks Mesa)
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Oct 2009 16:35:09