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Miyahisaite

A valid IMA mineral species
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06430610017759179406737.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
04371860017826028523265.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
08223940017852134727029.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
04197220017757466967775.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
00487980017813658076350.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
02486280017851898158685.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
06430610017759179406737.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
04371860017826028523265.jpg
Miyahisaite, etc.

Shimoharai mine, Saiki City, Oita Prefecture, Japan
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About MiyahisaiteHide

09320650017272472146288.jpg
Michitoshi Miyahisa
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 (宮久三千年) (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.


Unique IdentifiersHide

Mindat ID:
42835
Long-form identifier:
mindat:1:1:42835:4

IMA Classification of MiyahisaiteHide

Classification of MiyahisaiteHide

Strunz-mindat (2026):
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

Mineral SymbolsHide

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

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

Physical Properties of MiyahisaiteHide

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

Chemistry of MiyahisaiteHide

Mindat Formula:
(Sr,Ca)2Ba3(PO4)3F
Element Weights:
Element% weight
Ba46.231 %
O21.545 %
Sr19.665 %
P10.427 %
F2.132 %

Calculated from ideal end-member formula.
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

Geological EnvironmentHide

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 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:
FluorapatiteQuartz
Reference:
Nishio-Hamane, Daisuke, Ogoshi, Yukikazu, Minakawa, Tetsuo (2012) Miyahisaite, (Sr,Ca)2Ba3(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. doi:10.2465/jmps.110901

Synonyms of MiyahisaiteHide

Other Language Names for MiyahisaiteHide

German:Miyahisait
Japanese:宮久石

Relationship of Miyahisaite to other SpeciesHide

Member of:
Hedyphane Group > Apatite Supergroup
Other Members of Hedyphane Group:
AiolositeNa4Bi(SO4)3ClHex. 6/m : P63/m
CaracoliteNa3Pb2(SO4)3ClMon. 2/m : P21/m
CesaniteNa3Ca2(SO4)3(OH)Hex. 6 : P6
FluorphosphohedyphaneCa2Pb3(PO4)3FHex. 6/m : P63/m
FluorsigaiiteCa2Sr3(PO4)3FHex. 6/m : P63/m
HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm(6/m2/m2/m) : P63/mmc
HydroxylhedyphaneCa2Pb3(AsO4)3(OH)Trig. 3 : P3
MorelanditeCa2Ba3(AsO4)3ClHex.
ParafiniukiteCa2Mn3(PO4)3ClHex. 6/m : P63/m
PhosphohedyphaneCa2Pb3(PO4)3ClHex. 6/m : P63/m
'UM2002-53-PO:CaHPb'Ca2Pb3(PO4)3(OH,Cl,F)

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Miyahisaite associated with NamansiliteNaMn3+Si2O6
3 photos of Miyahisaite associated with AegirineNaFe3+Si2O6
2 photos of Miyahisaite associated with BrauniteMn2+Mn3+6(SiO4)O8
1 photo of Miyahisaite associated with 'Chert'
1 photo of Miyahisaite associated with QuartzSiO2
1 photo of Miyahisaite associated with CymriteBaAl2Si2(O,OH)8 · H2O

Related Minerals - Strunz-mindat GroupingHide

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.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.05StronadelphiteSr5(PO4)3FHex. 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

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 MiyahisaiteHide

References for MiyahisaiteHide

Localities for MiyahisaiteHide

Showing 1 localities.

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

BERJAYA - This locality has map coordinates listed. BERJAYA - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. BERJAYA - Good crystals or important locality for species. BERJAYA - 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.
Japan (TL)
 
  • Oita Prefecture
    • Saiki City
Williams et al. (2011) +1 other reference
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