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Arctite

A valid IMA mineral species
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00276230015127702393656.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
05979100015859724394282.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
02308120017062045327213.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
04247420015127700502657.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
02639270015127707585915.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
05541450017059239159588.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
00276230015127702393656.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
09564450015127709962858.jpg
Arctite, etc.

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia
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About ArctiteHide

Formula:
Na2Ca4(PO4)3F
Colour:
Colorless:
Lustre:
Vitreous, Sub-Vitreous, Pearly
Hardness:
5
Specific Gravity:
3.13
Crystal System:
Trigonal
Name:
Named in 1981 by Alexander Petrovich Khomyyakov, A. V. Bykova, and T. A. Kurova for the type locality's area, the Arctic region of Russia.
There is a structural relation to nabimusaite (and thus to nabimusaite-dargaite series): arctite-nabimusaite type triple layers of {[W3B12](TO4)4} composition are mentioned by Galuskin et al. (2016).


Unique IdentifiersHide

Mindat ID:
316
Long-form identifier:
mindat:1:1:316:4
GUID
(UUID V4):
13b3324a-6d92-485c-ab02-ff8b435ab9cd

IMA Classification of ArctiteHide

Classification of ArctiteHide

Strunz-mindat (2024):
8.BN.10

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 ed.:
41.5.18.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Hey's CIM Ref.:
22.1.6

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
ArcIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ArctiteHide

Lustre:
Vitreous, Sub-Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
Colorless:
Streak:
Colorless
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{0001}
Density:
3.13 g/cm3 (Measured)    3.19 g/cm3 (Calculated)

Optical Data of ArctiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.578 nε = 1.577
Birefringence:
0.001
Max Birefringence:
δ = 0.001
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Pleochroism:
Non-pleochroic
Comments:
Anomalously biaxial

Chemistry of ArctiteHide

Mindat Formula:
Na2Ca4(PO4)3F
Elements listed:
Ca, F, Na, O, P - search for minerals with similar chemistry

Chemical AnalysisHide

Oxide wt%:
 1
P2O533.83 %
SiO23.6 %
CaO31.8 %
BaO12 %
Na2O9.72 %
K2O1.64 %
Fe2O30.2 %
ZrO23.25 %
S0.22 %
F5.25 %
H2O0.5 %
Total:102.01 %
Sample references:
IDLocalityReferenceNotes
1Vuonnemiok River Valley, Khibiny Massif, Murmansk Oblast, Russia
Khomyakov, A. P., Bykova, A. V., Kurova, T. A. (1983) Arctite, Na2Ca4(PO4)3F, a new mineral. International Geology Review, 25 (6) 739-740 doi:10.1080/00206818309466761
Type specimen

Crystallography of ArctiteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 7.078 Å, c = 41.203 Å
Ratio:
a:c = 1 : 5.821
Unit Cell V:
1,787.64 ų (Calculated from Unit Cell)
Z:
6

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012475ArctiteSokolova E V, Yamnova N A, Egorov-Tismenko Y K, Khomyakov A P (1984) The crystal structure of a new phosphate of Na,Ca and Ba: (Na5Ca)Ca6Ba(PO4)6F3 Doklady Akademii Nauk SSSR 274 78-8319840293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
13.80 Å(25)
3.54 Å(21)
3.43 Å(32)
3.06 Å(25)
2.804 Å(25)
2.746 Å(100)
2.719 Å(21)
1.769 Å(20)
Comments:
ICDD 33-1228

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 7: Great Oxidation Event<2.4
45b : [Other oxidized fumarolic minerals]

Type Occurrence of ArctiteHide

Type Locality:
ⓘ Vuonnemiok River Valley, Khibiny Massif, Murmansk Oblast, Russia
General Appearance of Type Material:
Colorless to white masses and rare crystals.
Place of Conservation of Type Material:
Mining Institute, St. Petersburg, Russia, 120/1.
Geology Museum, Kola Branch, Academy of Sciences, Apatity, Russia, 5708/2.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 82132.
The Natural History Museum, London, England, 1994,2.
Geological Setting of Type Material:
Alkaline massif
Associated Minerals at Type Locality:
ZirsinaliteWadeiteVuonnemiteVilliaumiteUmbite
ThénarditeRasvumiteParaumbiteNatrosiliteNatisite
KostyleviteAegirine
Reference:
Khomyakov, A. P., Bykova, A. V. & Kurova, T. A. (1981) Arctite [Na2Ca4(PO4)3F] - a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 110: 506-508.
Download:
https://rruff.info/rruff_1.0/uploads/ZVMO110N4_506.pdf

Synonyms of ArctiteHide

Other Language Names for ArctiteHide

Russian:Арктит
Spanish:Arctita

Relationship of Arctite to other SpeciesHide

Member of:
Arctite Group > Arctite Supergroup
Other Members of this group:
AriegilatiteBaCa12(SiO4)4(PO4)2F2OTrig. 3m (3 2/m) : R3m
DargaiteBaCa12(SiO4)4(SO4)2O3Trig. 3m : R3m
NabimusaiteKCa12(SiO4)4(SO4)2O2FTrig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Arctite associated with NatroliteNa2Al2Si3O10 · 2H2O
5 photos of Arctite associated with AegirineNaFe3+Si2O6
5 photos of Arctite associated with Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
1 photo of Arctite associated with VilliaumiteNaF

Related Minerals - Strunz-mindat GroupingHide

8.BN.AraditeBaCa6[(SiO4)(VO4)](VO4)2FTrig. 3m : R3m
8.BN.MagganasiteCuFe3+3O(AsO4)3Tric. 1 : P1
8.BN.FluorpyromorphitePb5(PO4)3FHex. 6/m : P63/m
8.BN.FluorsigaiiteCa2Sr3(PO4)3FHex. 6/m : P63/m
8.BN.FluoralforsiteBa5(PO4)3FHex. 6/m : P6/m
8.BN.05AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(Ce)NaCeSr3(PO4)3FTrig. 3 : P3
8.BN.05ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Mimetite-MPb5(AsO4)3ClMon. 2/m : P21/b
8.BN.05Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
8.BN.05FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
8.BN.05HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.BN.05HydroxylapatiteCa5(PO4)3(OH)Hex. 6/m : P63/m
8.BN.05JohnbaumiteCa5(AsO4)3(OH)Hex. 6/m : P63/m
8.BN.05MimetitePb5(AsO4)3ClHex. 6/m : P63/m
8.BN.05MorelanditeCa2Ba3(AsO4)3ClHex.
8.BN.05OxypyromorphitePb10(PO4)6O
8.BN.05PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
8.BN.05FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
8.BN.05SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
8.BN.05TurneaureiteCa5(AsO4)3ClHex. 6/m : P63/m
8.BN.05VanadinitePb5(VO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(La)NaLaSr3(PO4)3FTrig. 3 : P3
8.BN.05Deloneite(Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5Trig. 3 : P3
8.BN.05FluorcaphiteSrCaCa3(PO4)3FHex. 6/m : P63/m
8.BN.05 vaGermanate-pyromorphitePb5(PO4)2GeO4
8.BN.05Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.5Trig. 3 : P3
8.BN.05Hydroxylapatite-MCa5(PO4)3OHMon. 2/m : P21/b
8.BN.05PhosphohedyphaneCa2Pb3(PO4)3ClHex. 6/m : P63/m
8.BN.05HydroxylpyromorphitePb5(PO4)3(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
8.BN.05StronadelphiteSr5(PO4)3FHex. 6/m : P63/m
8.BN.05FluorphosphohedyphaneCa2Pb3(PO4)3FHex. 6/m : P63/m
8.BN.05Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrig. 3 : P3
8.BN.05VanackeritePb4Cd(AsO4)3ClTrig. 3 : P3
8.BN.05Miyahisaite(Sr,Ca)2Ba3(PO4)3F Hex. 6/m : P63/m
8.BN.05Unnamed (OH-analogue of Mimetite)Pb5(AsO4)3(OH)Hex. 6/m : P63/m
8.BN.05PieczkaiteMn5(PO4)3ClHex. 6/m : P63/m
8.BN.05HydroxylhedyphaneCa2Pb3(AsO4)3(OH)Trig. 3 : P3
8.BN.05PliniusiteCa5(VO4)3FHex. 6/m : P63/m
8.BN.05ParafiniukiteCa2Mn3(PO4)3ClHex. 6/m : P63/m
8.BN.15GoryainoviteCa2(PO4)ClOrth. mmm (2/m 2/m 2/m) : Pbcm

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.

Internet Links for ArctiteHide

References for ArctiteHide

Localities for ArctiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
      • Koashva Mt
Arzamastsev et al. (2008)
[World of Stones 95:5-6
Pekov
Museum Victoria (Australia)
Khomyakov et al. (1983) +1 other reference
...
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