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⇱ Stronadelphite: Mineral information, data and localities.

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Stronadelphite

A valid IMA mineral species
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About StronadelphiteHide

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Formula:
Sr5(PO4)3F
Colour:
colourless with a pale greenish tint
Hardness:
5
Specific Gravity:
3.915 (Calculated)
Crystal System:
Hexagonal
Name:
For the element strontium and αδελφóσ, Greek for “brother”, as the full strontium analogue of fluorapatite.
Isostructural with:
Apatite Group.

The OH analogue is known as a synthetic compound (Sudarsanan and Young, 1972).


Unique IdentifiersHide

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Mindat ID:
35973
Long-form identifier:
mindat:1:1:35973:5

IMA Classification of StronadelphiteHide

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Approved
Approval year:
2008

Classification of StronadelphiteHide

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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
41.8.1.4

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq

Mineral SymbolsHide

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

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

Physical Properties of StronadelphiteHide

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Transparency:
Transparent
Colour:
Colourless with a pale greenish tint
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Density:
3.915 g/cm3 (Calculated)

Optical Data of StronadelphiteHide

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Type:
Uniaxial (-)
RI values:
nω = 1.630(1) nε = 1.623(1)
Max. Birefringence:
δ = 0.007
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate

Chemistry of StronadelphiteHide

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Mindat Formula:
Sr5(PO4)3F
Element Weights:
Element% weight
Sr59.042 %
O25.875 %
P12.523 %
F2.560 %

Calculated from ideal end-member formula.

Crystallography of StronadelphiteHide

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Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 9.845(7) Å, c = 7.383(4) Å
Ratio:
a:c = 1 : 0.75
Unit Cell V:
619.72 ų (Calculated from Unit Cell)
Z:
2

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0017880StronadelphitePekov I V, Britvin S N, Zubkova N V, Pushcharovsky D Y, Pasero M, Merlino S (2010) Stronadelphite, Sr5(PO4)3F, a new apatite-group mineral in the southern part of the Khibiny alkaline complex, Kola peninsula, Russia European Journal of Mineralogy 22 869-8742010Belovitovoye pegmatite, Kirovskii apatite mine at Mt. Kukisvumchorr,0293
0004841StronadelphiteLuo Y, Hughes J M, Rakovan J, Pan Y (2009) Site preference of U and Th in Cl, F, and Sr apatites American Mineralogist 94 345-351👁 Image
2009synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
3.71 Å(30)
3.21 Å(40)
2.940 Å(100)
2.823 Å(35)
2.009 Å(50)
1.955 Å(45)
1.831 Å(50)
1.500 Å(30)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
36 : Carbonatites, kimberlites, and related igneous rocks

Type Occurrence of StronadelphiteHide

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General Appearance of Type Material:
hexagonal, prismatic to acicular crystals up to 0.1 × 0.1 × 2 mm, combined in sheaf-like clusters up to 1 × 2 mm embedded in natrolite.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, with the registration number 3693/1.
Geological Setting of Type Material:
peralkaline pegmatite
Associated Minerals at Type Locality:

Synonyms of StronadelphiteHide

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Other Language Names for StronadelphiteHide

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Relationship of Stronadelphite to other SpeciesHide

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Other Members of Apatite Group:
AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
'Apatite'Ca5(PO4)3(Cl/F/OH)
ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
FluoralforsiteBa5(PO4)3FHex. 6/m : P6/m
FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
FluorpyromorphitePb5(PO4)3FHex. 6/m : P63/m
HydroxylapatiteCa5(PO4)3(OH)Hex. 6/m : P63/m
HydroxylpyromorphitePb5(PO4)3(OH)Hex. 6/mmm(6/m2/m2/m) : P63/mcm
JohnbaumiteCa5(AsO4)3(OH)Hex. 6/m : P63/m
MimetitePb5(AsO4)3ClHex. 6/m : P63/m
'Oxypyromorphite'Pb10(PO4)6O
PieczkaiteMn5(PO4)3ClHex. 6/m : P63/m
PliniusiteCa5(VO4)3FHex. 6/m : P63/m
PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
SvabiteCa5(AsO4)3FHex. 6/mmm(6/m2/m2/m) : P63/mmc
TurneaureiteCa5(AsO4)3ClHex. 6/m : P63/m
'Unnamed (OH-analogue of Mimetite)'Pb5(AsO4)3(OH)Hex. 6/m : P63/m
VanadinitePb5(VO4)3ClHex. 6/m : P63/m

Common AssociatesHide

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Associations Based on Photo Data:
3 photos of Stronadelphite associated with Polezhaevaite-(Ce)NaSrCeF6
2 photos of Stronadelphite associated with VilliaumiteNaF
1 photo of Stronadelphite associated with AegirineNaFe3+Si2O6
1 photo of Stronadelphite associated with PectoliteNaCa2Si3O8(OH)

Related Minerals - Strunz-mindat GroupingHide

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8.BN.FluoralforsiteBa5(PO4)3FHex. 6/m : P6/m
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.05PieczkaiteMn5(PO4)3ClHex. 6/m : P63/m
8.BN.05FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
8.BN.05FluorcaphiteSrCaCa3(PO4)3FHex. 6/m : P63/m
8.BN.05VanadinitePb5(VO4)3ClHex. 6/m : P63/m
8.BN.05HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm(6/m2/m2/m) : P63/mmc
8.BN.05HydroxylhedyphaneCa2Pb3(AsO4)3(OH)Trig. 3 : P3
8.BN.05'Mimetite-M'Pb5(AsO4)3ClMon. 2/m : P21/b
8.BN.05JohnbaumiteCa5(AsO4)3(OH)Hex. 6/m : P63/m
8.BN.05PliniusiteCa5(VO4)3FHex. 6/m : P63/m
8.BN.05'Hydroxylapatite-M'Ca5(PO4)3OHMon. 2/m : P21/b
8.BN.05HydroxylpyromorphitePb5(PO4)3(OH)Hex. 6/mmm(6/m2/m2/m) : P63/mcm
8.BN.05Miyahisaite(Sr,Ca)2Ba3(PO4)3F Hex. 6/m : P63/m
8.BN.05Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrig. 3 : P3
8.BN.05Belovite-(Ce)NaCeSr3(PO4)3FTrig. 3 : P3
8.BN.05Kuannersuite-(Ce)NaCeBa3(PO4)3F0.5Cl0.5Trig. 3 : P3
8.BN.05AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
8.BN.05'Unnamed (OH-analogue of Mimetite)'Pb5(AsO4)3(OH)Hex. 6/m : P63/m
8.BN.05ParafiniukiteCa2Mn3(PO4)3ClHex. 6/m : P63/m
8.BN.05MimetitePb5(AsO4)3ClHex. 6/m : P63/m
8.BN.05 va'Germanate-pyromorphite'Pb5(PO4)2GeO4
8.BN.05Belovite-(La)NaLaSr3(PO4)3FTrig. 3 : P3
8.BN.05FluorphosphohedyphaneCa2Pb3(PO4)3FHex. 6/m : P63/m
8.BN.05FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
8.BN.05HydroxylapatiteCa5(PO4)3(OH)Hex. 6/m : P63/m
8.BN.05'Johnbaumite-M'Ca5(AsO4)3OHMon. 2/m : P21/m
8.BN.05PhosphohedyphaneCa2Pb3(PO4)3ClHex. 6/m : P63/m
8.BN.05TurneaureiteCa5(AsO4)3ClHex. 6/m : P63/m
8.BN.05MorelanditeCa2Ba3(AsO4)3ClHex.
8.BN.05'Oxypyromorphite'Pb10(PO4)6O
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.05ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
8.BN.05PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
8.BN.05VanackeritePb4Cd(AsO4)3ClTrig. 3 : P3
8.BN.05SvabiteCa5(AsO4)3FHex. 6/mmm(6/m2/m2/m) : P63/mmc
8.BN.10ArctiteNa2Ca4(PO4)3FTrig. 3m(32/m) : R3m
8.BN.10KrügeriteBaCa6(SiO4)2[(P0.5S0.5)O4]2FTrig. 3m(32/m) : R3m
8.BN.15GoryainoviteCa2(PO4)ClOrth. mmm(2/m2/m2/m) : Pbcm

Other InformationHide

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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 StronadelphiteHide

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mindat.org URL:
https://www.mindat.org/min-35973.html
Please feel free to link to this page.

References for StronadelphiteHide

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Reference List:

Localities for StronadelphiteHide

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Showing 7 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Brazil
  • Minas Gerais
    • Poços de Caldas
Azzi (2017)
Andrezza Azzi et al. (2018) +2 other references
Japan
  • Niigata Prefecture
Miyajima (2014)
Russia
  • Khabarovsk Krai
    • Ayano-Maysky district
Osipov et al. (2021)
  • Murmansk Oblast
Yakovenchuk et al. (2010)
    • Kukisvumchorr Mt
Pekov et al. (2010)
  • Sakha
Kruk et al. (2021)
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