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Miyahisaite

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Formula:
(Sr,Ca)2Ba3(PO4)3F
Colour:
Colorless
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
4.511 (Calculated)
Crystal System:
Hexagonal
Name:
For Professor Michitoshi Miyahisa (1928-1983) for his work on deposits on Kyushu.
Isostructural with:
Hedyphane
A mineral of the hedyphane group in the apatite supergroup.


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Classification of MiyahisaiteHide

IMA status:
Approved
Approval Year:
2011
Nickel-Strunz 10th (pending) ed.:
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 ed.:
41.8.11.

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

Physical Properties of MiyahisaiteHide

Lustre:
Vitreous
Transparency:
Transparent
Colour:
Colorless
Streak:
white
Hardness:
5 on Mohs scale
Density:
4.511 g/cm3 (Calculated)

Chemical Properties of MiyahisaiteHide

Formula:
(Sr,Ca)2Ba3(PO4)3F
IMA Formula:
(Sr,Ca)2Ba3(PO4)3F
Elements listed:
Ba, Ca, F, O, P, Sr - search for minerals with similar chemistry

Crystallography of MiyahisaiteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Setting:
P63/m
Cell Parameters:
a = 9.921(2) Å, c = 7.469(3) Å
Ratio:
a:c = 1 : 0.753
Unit Cell V:
636.7 ų
Z:
2
Morphology:
As pseudomorphic aggregates

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.427(16)
3.248(22)
2.981(100)
2.865(21)
1.976(23)
1.874(16)
1.870(15)
1.864(17)

Type Occurrence of MiyahisaiteHide

Type Locality:
ⓘ Shimoharai mine, Saiki City, Oita Prefecture, Kyushu Region, Japan
General Appearance of Type Material:
As a pseudomorphic aggregate (up to about 100 μm in size)along with fluorapatite in the quartz matrix in a namansilite-rich layer of the chert.
Place of Conservation of Type Material:
National Museum of Nature and Science,Tokyo, Japan, specimen number NSM M-41299
Geological Setting of Type Material:
Low grade metamorphism of manganese deposits formed in chert.
Associated Minerals at Type Locality:
QuartzFluorapatite

Synonyms of MiyahisaiteHide

Other Language Names for MiyahisaiteHide

Japanese:宮久石

Relationship of Miyahisaite to other SpeciesHide

Member of:
Hedyphane Group > Apatite Supergroup
Other Members of this group:
AiolositeNa4Bi(SO4)3ClHex. 6/m : P63/m
CaracoliteNa3Pb2(SO4)3ClMon.
CesaniteNa3Ca2(SO4)3(OH)Hex.
FluorphosphohedyphaneCa2Pb3(PO4)3FHex. 6/m : P63/m
HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
MorelanditeCa2Ba3(AsO4)3Cl
PhosphohedyphaneCa2Pb3(PO4)3ClHex. 6/m : P63/m

Related Minerals - Nickel-Strunz GroupingHide

8.BN.05AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
8.BN.05Belovite-(Ce)NaCeSr3(PO4)3FTrig. 3 : P3
8.BN.05Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)Hex.
8.BN.05Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)Hex.
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)3OHHex. 6/m : P63/m
8.BN.05MimetitePb5(AsO4)3ClHex. 6/m : P63/m
8.BN.05MorelanditeCa2Ba3(AsO4)3Cl
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.
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.
8.BN.05FluorcaphiteSrCaCa3(PO4)3FHex. 6/m : P63/m
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.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.10ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m

Related Minerals - Dana Grouping (8th Ed.)Hide

41.8.11.Carlgieseckeite-(Nd)NaNdCa3(PO4)3FTrig. 3 : P3

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.

References for MiyahisaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nishio-Hamane, D., Ogoshi, Y. and Minakawa, T. (2012): Miyahisaite, (Sr,Ca)6Ba3(PO4)3F, a new mineral of the hedyphane group in the apatite supergroup from the Shimoharai mine, Oita Prefecture, Japan. Journal of Mineralogical and Petrological Sciences. 107: 121-126.

Internet Links for MiyahisaiteHide

Localities for MiyahisaiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Japan (TL)
 
  • Kyushu Region
    • Oita Prefecture
      • Saiki City
Nishio-Hamane D., Ohgoshi Y., Minakawa T. (2012) Miyahisaite, (Sr,Ca)2Ba3(PO4)3F, a new mineral of hedyphane group in apatite supergroup from Shimoharai mine, Oita Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 107,121-126
Mineral and/or Locality  
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