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Fluorstrophite

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Formula:
SrCaSr
 
3
(PO
 
4
)
 
3
F
System:HexagonalColour:Green to yellow-green, ...
Hardness:5
Member of:Belovite Group > Apatite Supergroup

Classification of Fluorstrophite

IMA status:Approved 1962
Strunz 8th edition ID:7/B.39-100
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:41.8.1.7

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
Hey's CIM Ref.:22.1.18

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
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Type Occurrence of Fluorstrophite

Type Locality:Inagli chrome diopside deposit, Inagli Massif, Aldan, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Physical Properties of Fluorstrophite

Lustre:Vitreous, Greasy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Green to yellow-green, colourless
Hardness (Mohs):5

Crystallography of Fluorstrophite

Crystal System:Hexagonal
Class (H-M):6/m - Dipyramidal
Space Group:P63/m
Cell Parameters:a = 9.565(8) Å, c = 7.115(3) Å
Ratio:a:c = 1 : 0.744
Unit Cell Volume:V 563.74 ų (Calculated from Unit Cell)
Z:2
Morphology:Crystals short to long hexagonal prisms [0001], with {1010} and {1011} dominant; also thick tabular {0001}, frequently in the crystals of hydrothermal origin in pegmatites and veins, with {1010}, relatively large {0001}, and often also {1011} or low pyramids. Massive, coarse granular to compact.
Comment:Space group P63/m or P63.

Optical Data of Fluorstrophite

Type:Uniaxial (-)
RI values: nω = 1.651 nε = 1.637
Maximum Birefringence:δ = 0.014

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

Chemical Properties of Fluorstrophite

Formula:
SrCaSr
 
3
(PO
 
4
)
 
3
F
Simplified for copy/paste:SrCaSr3(PO4)3F
Essential elements:Ca, F, O, P, Sr
All elements listed in formula:Ca, F, O, P, Sr

Relationship of Fluorstrophite to other Species

Member of:Belovite Group > Apatite Supergroup
Other Members of Group:

- +
Belovite-(Ce)
NaCeSr
 
3
(PO
 
4
)
 
3
F
Belovite-(La)
NaLaSr
 
3
(PO
 
4
)
 
3
F
Carlgieseckeite-(Nd)
NaNdCa
 
3
(PO
 
4
)
 
3
F
Deloneite
(Na
 
0.5
REE
 
0.25
Ca
 
0.25
)(Ca
 
0.75
REE
 
0.25
)Sr
 
1.5
(CaNa
 
0.25
REE
 
0.25
)(PO
 
4
)
 
3
F
 
0.5
(OH)
 
0.5
Fluorcaphite
SrCaCa
 
3
(PO
 
4
)
 
3
F
Kuannersuite-(Ce)
NaCeBa
 
3
(PO
 
4
)
 
3
F
 
0.5
Cl
 
0.5
Related Minerals - Nickel-Strunz Grouping):

- +
8.BN.05Alforsite
Ba
 
5
(PO
 
4
)
 
3
Cl
8.BN.05Belovite-(Ce)
NaCeSr
 
3
(PO
 
4
)
 
3
F
8.BN.05Carbonate-rich Fluorapatite
Ca
 
5
(PO
 
4
,CO
 
3
)
 
3
(F,O)
8.BN.05Carbonate-rich Hydroxylapatite
Ca
 
5
(PO
 
4
,CO
 
3
)
 
3
(OH,O)
8.BN.05Chlorapatite
Ca
 
5
(PO
 
4
)
 
3
Cl
8.BN.05Mimetite-M
Pb
 
5
(AsO
 
4
)
 
3
Cl
8.BN.05Johnbaumite-M
Ca
 
5
(AsO
 
4
)
 
3
OH
8.BN.05Fluorapatite
Ca
 
5
(PO
 
4
)
 
3
F
8.BN.05Hedyphane
Pb
 
3
Ca
 
2
(AsO
 
4
)
 
3
Cl
8.BN.05Hydroxylapatite
Ca
 
5
(PO
 
4
)
 
3
(OH)
8.BN.05Johnbaumite
Ca
 
5
(AsO
 
4
)
 
3
OH
8.BN.05Mimetite
Pb
 
5
(AsO
 
4
)
 
3
Cl
8.BN.05Morelandite
Ca
 
2
Ba
 
3
(AsO
 
4
)
 
3
Cl
8.BN.05Pyromorphite
Pb
 
5
(PO
 
4
)
 
3
Cl
8.BN.05Svabite
Ca
 
5
(AsO
 
4
)
 
3
F
8.BN.05Turneaureite
Ca
 
5
(AsO
 
4
)
 
3
Cl
8.BN.05Vanadinite
Pb
 
5
(VO
 
4
)
 
3
Cl
8.BN.05Belovite-(La)
NaLaSr
 
3
(PO
 
4
)
 
3
F
8.BN.05Deloneite
(Na
 
0.5
REE
 
0.25
Ca
 
0.25
)(Ca
 
0.75
REE
 
0.25
)Sr
 
1.5
(CaNa
 
0.25
REE
 
0.25
)(PO
 
4
)
 
3
F
 
0.5
(OH)
 
0.5
8.BN.05Fluorcaphite
SrCaCa
 
3
(PO
 
4
)
 
3
F
8.BN.05Kuannersuite-(Ce)
NaCeBa
 
3
(PO
 
4
)
 
3
F
 
0.5
Cl
 
0.5
8.BN.05Hydroxylapatite-M
Ca
 
5
(PO
 
4
)
 
3
OH
8.BN.05Phosphohedyphane
Ca
 
2
Pb
 
3
(PO
 
4
)
 
3
Cl
8.BN.05Stronadelphite
Sr
 
5
(PO
 
4
)
 
3
F
8.BN.05Fluorphosphohedyphane
Ca
 
2
Pb
 
3
(PO
 
4
)
 
3
F
8.BN.05Carlgieseckeite-(Nd)
NaNdCa
 
3
(PO
 
4
)
 
3
F
8.BN.05Miyahisaite
(Sr,Ca)
 
2
Ba
 
3
(PO
 
4
)
 
3
F
8.BN.10Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
Related Minerals - Hey's Index Grouping:

- +
22.1.1Amblygonite
LiAl(PO
 
4
)F
22.1.2Lacroixite
NaAl(PO
 
4
)F
22.1.3Natrophosphate
Na
 
7
(PO
 
4
)
 
2
F · 19H
 
2
O
22.1.5Nacaphite
Na
 
2
Ca(PO
 
4
)F
22.1.6Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
22.1.7Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
22.1.9Fluorapatite
Ca
 
5
(PO
 
4
)
 
3
F
22.1.10Herderite
CaBePO
 
4
(F,OH)
22.1.11Isokite
CaMg(PO
 
4
)F
22.1.12Panasqueiraite
CaMg(PO
 
4
)(OH,F)
22.1.13Babefphite
BaBePO
 
4
(F,OH)
22.1.14Fluellite
Al
 
2
(PO
 
4
)F
 
2
(OH) · 7H
 
2
O
22.1.15Minyulite
KAl
 
2
(PO
 
4
)
 
2
(OH,F) · 4H
 
2
O
22.1.16Morinite
NaCa
 
2
Al
 
2
(PO
 
4
)
 
2
(OH)F
 
4
· 2H
 
2
O
22.1.17Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
22.1.19Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
22.1.20Väyrynenite
Mn
2+
 
Be(PO
 
4
)(OH,F)
22.1.21Maxwellite
NaFe
3+
 
(AsO
 
4
)F
22.1.22Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
22.1.23Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
22.1.24Magniotriplite
(Mg,Fe
2+
 
,Mn
2+
 
)
 
2
PO
 
4
F
22.1.25Zwieselite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
22.1.26Mcauslanite
HFe
2+
3
Al
 
2
(PO
 
4
)
 
4
F · 18H
 
2
O
22.1.27Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
22.1.28Svabite
Ca
 
5
(AsO
 
4
)
 
3
F
22.1.29Tilasite
CaMg(AsO
 
4
)F
22.1.30Johnbaumite-M
Ca
 
5
(AsO
 
4
)
 
3
OH
22.1.31Durangite
NaAl(AsO
 
4
)F

Other Names for Fluorstrophite

Synonyms:
Apatite-(SrOH)Strontium-Apatite (of Efimov et al.)
Other Languages:
German:Strontiapatit
Japanese:ストロンチウム燐灰石
Russian:Стронциоапатит
Апатит-(SrOH)
Spanish:Strontiapatita

Other Information

Other Information:Soluble in HCl or in HNO3. Varieties containing CO3 may dissolve with slight effervescence.
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 Fluorstrophite

Reference List:

- +
Volkova and Melentiev (1939) Comptes rendus de l’académie des sciences de l’U.R.S.S., n.s.: 25: 120.

Doklady Akademii Nauk SSSR (1962): 142(2): 439-442.

American Mineralogist (1962): 47: 80.

Kristallografiya: 32: 891-895.

Soviet Physics – Crystallography (1987): 32: 524.

Internet Links for Fluorstrophite

Search Engines:
  • Look for Fluorstrophite on Google
  • Look for Fluorstrophite images on Google
  • External Links:
  • Look for Fluorstrophite on Webmineral
  • Look for Fluorstrophite on Athena Mineralogy
  • Look for Fluorstrophite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Strontium-Apatite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Buy fine minerals and gemstones from Pala International
  • Fabre Minerals - search for Fluorstrophite specimens
  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for Fluorstrophite on Well-Arranged Molecules
  • SpiriferMinerals.com - high quality low prices
  • Fine and rare minerals from mintreasure.com
  • Top quality minerals from Kristalle of California
  • The Arkenstone - Fine Minerals
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  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
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  • Jobs:
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  • Localities for Fluorstrophite

    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.
    Canada
     
    • Northwest Territories
    Anton R. Chakhmouradian and Roger H. Mitchell (2001) Three compositional varieties of perovskite from kimberlites of the Lac de Gras Field (Northwest Territories, Canada). Mineralogical Magazine 65:133-148
    • Ontario
      • Thunder Bay District
        • Marathon
    Platt & Wooley (1990)
    Japan
     
    • Honshu Island
      • Chubu Region
        • Niigata Prefecture
    [MinRec 33:168]
    Sakai & Akai (1988) Sanko-Gakkai Kou'en-Youshi, 16.
    Russia
     
    • Eastern-Siberian Region
      • Sakha Republic (Saha Republic; Yakutia)
        • Aldan Shield
          • Aldan
            • Inagli Massif
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Chara and Tokko Rivers Confluence
    CanMin 40:121-136
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    www.koeln.netsurf.de/~w.steffens/khib.htm
    South Africa
     
    • North West Province
      • Western Bushveld Complex
        • Rustenburg District
    The Canadian Mineralogist, V 42, 2004, pp. 1169-1178.
    USA
     
    • California
      • San Benito Co.
        • Diablo Range
          • New Idria District
            • Picacho Peak
              • Clear Creek area
    Joseph F. Cooper Jr., Gail E. Dunning, Ted A.Hadley (2003) Minerology of the Victor Claim, Clear Creek Area, New Idria District, San Benito County, California.
    Zambia
     
    • Northern Province
      • Muchinga Mts.
        • Isoka District
          • Isoka
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