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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:
Named in honor of Michitoshi Miyahisa (1928 Oita pref., Japan - 6 February 1983), mineralogist and professor at Ehime University, Japan, 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
First Published:
2012
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, 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
Reference:
Nishio-Hamane, D., Ogoshi, Y. and Minakawa, T. (2012) Miyahisaite, (Sr,Ca)^6Ba^3(PO^4)^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.

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
HydroxylhedyphaneCa2Pb3(AsO4)3(OH)Trig. 3 : P3
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)
Williams, P.A., Hatert, F., Pasero, M., Mills, S.J. (2011) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 10. New minerals and nomenclature modifications approved in 2011. Mineralogical Magazine: 75: 2549-2561.
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.
Cámara, F., Gatta, G.D., Uvarova, Y., Gagne, O.C., Belakovskiy, D.I. (2014) New mineral names. American Mineralogist: 99: 1511-1518.

Internet Links for MiyahisaiteHide

Localities for MiyahisaiteHide

ⓘ - 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)
 
  • 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
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