Mindat Logo

Momoiite

This page is currently not sponsored. Click here to sponsor this page.



Formula:
(Mn
2+
 
,Ca)
 
3
V
3+
2
(SiO
 
4
)
 
3
System:Isometric
Member of:Garnet Structural Group
Name:In honour of Professor Hitoshi Momoi (1930-2002) who first recognised the presence of a Mn3V2Si3O12 component in garnet.


Garnet Group.
A garnet with this formula had previously been described as "Yamatoite" (qv), a species which was later discredited because the type material was not truly Mn-V-dominant, although the name "yamatoite" continued to be used for the hypothetical Mn-V-garnet molecule.

Classification of Momoiite

IMA status:Approved 2009
Nickel-Strunz 10th (pending) edition ID:9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
Dana 8th edition ID:51.4.4.5

51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
mindat.org URL:http://www.mindat.org/min-39634.html
Please feel free to link to this page.

Type Occurrence of Momoiite

Type Locality:Kurase mine, Saijo City, Ehime Prefecture, Shikoku Island, Japan

Crystallography of Momoiite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Ia3d {I41/a 3 2/d}
Cell Parameters:a = 11.9242(7) Å
Unit Cell Volume:V 1,695.46 ų (Calculated from Unit Cell)
Comment:Ia-3d
X-Ray Powder Diffraction:
d-spacingIntensity
2.982 (78)
2.667 (100)
2.435 (42)
2.339 (20)
2.178 (20)
1.935 (21)
1.654 (20)
1.594 (30)

Chemical Properties of Momoiite

Formula:
(Mn
2+
 
,Ca)
 
3
V
3+
2
(SiO
 
4
)
 
3
Simplified for copy/paste:(Mn2+,Ca)3V3+2(SiO4)3
Essential elements:Mn, O, Si, V
All elements listed in formula:Ca, Mn, O, Si, V

Relationship of Momoiite to other Species

Member of:Garnet Structural Group
Other Members of Group:

- +
Almandine
Fe
2+
3
Al
 
2
(SiO
 
4
)
 
3
Andradite
Ca
 
3
Fe
3+
2
(SiO
 
4
)
 
3
Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
(AsO
 
4
)
 
3
Bitikleite
Ca
 
3
SbSn(AlO
 
4
)
 
3
Blythite
Mn
2+
3
Mn
3+
2
[SiO
 
4
]
 
3
Calderite
(Mn
2+
 
,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(SiO
 
4
)
 
3
Dzhuluite
Ca
 
3
SbSnFe
3+
3
O
 
12
Elbrusite
Ca
 
3
U
6+
 
ZrFe
3+
2
Fe
2+
 
O
 
12
Goldmanite
Ca
 
3
V
3+
2
(SiO
 
4
)
 
3
Grossular
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3
Henritermierite
Ca
 
3
(Mn
3+
 
,Al)
 
2
(SiO
 
4
)
 
2
(OH)
 
4
Hutcheonite
Ca
 
3
Ti
 
2
(SiAl
 
2
)O
 
12
Irinarassite
Ca
 
3
Sn
 
2
Al
 
2
SiO
 
12
Katoite
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3-x
(OH)
 
4x
Kerimasite
Ca
 
3
Zr
 
2
(SiO
 
4
)(Fe
3+
 
O
 
4
)
 
2
Khoharite
Mg
 
3
Fe
3+
2
(SiO
 
4
)
 
3
Kimzeyite
Ca
 
3
(Zr,Ti)
 
2
((Si,Al,Fe
3+
 
)O
 
4
)
 
3
Knorringite
Mg
 
3
Cr
 
2
(SiO
 
4
)
 
3
Majorite
Mg
 
3
(Fe
2+
 
,Si,Al)
 
2
(SiO
 
4
)
 
3
Menzerite-(Y)
{(Y,REE),(Ca,Fe
2+
 
)}
 
3
{(Mg,Fe
2+
 
),(Fe
3+
 
,Al)}
 
2
[SiO
 
4
]
 
3
Morimotoite
Ca
 
3
(Ti,Fe
2+
 
,Fe
3+
 
)
 
2
((Si,Fe
3+
 
)O
 
4
)
 
3
Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
Pyrope
Mg
 
3
Al
 
2
(SiO
 
4
)
 
3
Schäferite
Ca
 
2
NaMg
 
2
(VO
 
4
)
 
3
Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
((Si,Fe
3+
 
)O
 
4
)
 
3
Skiagite
Fe
2+
3
Fe
3+
2
[SiO
 
4
]
 
3
Spessartine
Mn
2+
3
Al
 
2
(SiO
 
4
)
 
3
Toturite
Ca
 
3
Sn
 
2
(SiO
 
4
)(Fe
3+
 
O
 
4
)
 
2
Usturite
Ca
 
3
SbZr(Fe
3+
 
O
 
4
)
 
3
Uvarovite
Ca
 
3
Cr
 
2
(SiO
 
4
)
 
3
Yafsoanite
Ca
 
3
Zn
 
3
(TeO
 
6
)
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
9.AD.05Larnite
Ca
 
2
SiO
 
4
9.AD.10Calcio-Olivine
Ca
 
2
SiO
 
4
9.AD.15Merwinite
Ca
 
3
Mg(SiO
 
4
)
 
2
9.AD.20Bredigite
Ca
 
7
Mg(SiO
 
4
)
 
4
9.AD.25Andradite
Ca
 
3
Fe
3+
2
(SiO
 
4
)
 
3
9.AD.25Almandine
Fe
2+
3
Al
 
2
(SiO
 
4
)
 
3
9.AD.25Calderite
(Mn
2+
 
,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(SiO
 
4
)
 
3
9.AD.25Goldmanite
Ca
 
3
V
3+
2
(SiO
 
4
)
 
3
9.AD.25Grossular
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3
9.AD.25Henritermierite
Ca
 
3
(Mn
3+
 
,Al)
 
2
(SiO
 
4
)
 
2
(OH)
 
4
9.AD.25Hibschite
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3-x
(OH)
 
4x
9.AD.25Hydroandradite
Ca
 
3
Fe
3+
2
(SiO
 
4
)
 
3-x
(OH)
 
4x
9.AD.25Katoite
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3-x
(OH)
 
4x
9.AD.25Kimzeyite
Ca
 
3
(Zr,Ti)
 
2
((Si,Al,Fe
3+
 
)O
 
4
)
 
3
9.AD.25Knorringite
Mg
 
3
Cr
 
2
(SiO
 
4
)
 
3
9.AD.25Majorite
Mg
 
3
(Fe
2+
 
,Si,Al)
 
2
(SiO
 
4
)
 
3
9.AD.25Morimotoite
Ca
 
3
(Ti,Fe
2+
 
,Fe
3+
 
)
 
2
((Si,Fe
3+
 
)O
 
4
)
 
3
9.AD.25Pyrope
Mg
 
3
Al
 
2
(SiO
 
4
)
 
3
9.AD.25Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
((Si,Fe
3+
 
)O
 
4
)
 
3
9.AD.25Spessartine
Mn
2+
3
Al
 
2
(SiO
 
4
)
 
3
9.AD.25Uvarovite
Ca
 
3
Cr
 
2
(SiO
 
4
)
 
3
9.AD.25Wadalite
(Ca,Mg)
 
6
(Al,Fe
3+
 
)
 
4
((Si,Al)O
 
4
)
 
3
O
 
4
Cl
 
3
9.AD.25Holtstamite
Ca
 
3
(Al,Mn
3+
 
)
 
2
(SiO
 
4
)
 
2
(OH)
 
4
9.AD.25Kerimasite
Ca
 
3
Zr
 
2
(SiO
 
4
)(Fe
3+
 
O
 
4
)
 
2
9.AD.25Toturite
Ca
 
3
Sn
 
2
(SiO
 
4
)(Fe
3+
 
O
 
4
)
 
2
9.AD.25Eltyubyuite
Ca
 
12
Fe
3+
10
Si
 
4
O
 
32
Cl
 
6
9.AD.25Hutcheonite
Ca
 
3
Ti
 
2
(SiAl
 
2
)O
 
12
9.AD.30Coffinite
(U
4+
 
,Th)(SiO
 
4
)
 
1-x
(OH)
 
4x
9.AD.30Hafnon
HfSiO
 
4
9.AD.30Thorite
(Th,U)SiO
 
4
9.AD.30Thorogummite
(Th,U)(SiO
 
4
)
 
1-x
(OH)
 
4x
9.AD.30Zircon
ZrSiO
 
4
9.AD.30Stetindite
Ce
4+
 
SiO
 
4
9.AD.35Huttonite
ThSiO
 
4
9.AD.35Tombarthite-(Y)
Y
 
4
(Si,H
 
4
)
 
4
O
 
12-x
(OH)
 
4+2x
9.AD.40Eulytine
Bi
 
4
(SiO
 
4
)
 
3
9.AD.45Reidite
ZrSiO
 
4

Other Names for Momoiite

Synonyms:
IMA2009-026
Other Languages:

Other Information

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 Momoiite

Reference List:

- +
IMA Approvals - August 2009

Tanaka, H. et al. (2010) Momoiite (Mn2+,Ca)3(V3+,Al)2Si3O12, a new manganese vanadium garnet from Japan. Journal of Mineralogical and Petrological Sciences 105, 92-96. [http://www.jstage.jst.go.jp/article/jmps/105/2/92/_pdf [Link Broken? Jul 2014]]

Internet Links for Momoiite

Search Engines:
  • Look for Momoiite on Google
  • Look for Momoiite images on Google
  • External Links:
  • Look for Momoiite on Webmineral
  • Look for Momoiite on Athena Mineralogy
  • Look for Momoiite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
  • Wilensky Fine Minerals
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Top quality minerals from Kristalle of California
  • Fine Minerals from Weinrich Minerals, Inc.
  • rare and unusual minerals mainly crystallized
  • Buy minerals from YourMineralCollection
  • Buy from David K Joyce minerals
  • Buy from Dave Bunk Minerals
  • Buy RARE Minerals from Rocks of Africa
  • Rare and Unusual minerals at Mineralogical Research Company
  • SpiriferMinerals.com - high quality low prices
  • Localities for Momoiite

    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.
    Japan
     
    • Honshu Island
      • Chubu Region
        • Fukui Prefecture
          • Mikata-kaminaka-gun
            • Wakasa-cho
    Tanaka, H. et al. (2010) Momoiite (Mn2+,Ca)3(V3+,Al)2Si3O12, a new manganese vanadium garnet from Japan. Journal of Mineralogical and Petrological Sciences 105, 92-96. [http://www.jstage.jst.go.jp/article/jmps/105/2/92/_pdf]
      • Kinki Region
        • Kyoto Prefecture
          • Sohraku-gun
    Tanaka, H. et al. (2010) Momoiite (Mn2+,Ca)3(V3+,Al)2Si3O12, a new manganese vanadium garnet from Japan. Journal of Mineralogical and Petrological Sciences 105, 92-96. [http://www.jstage.jst.go.jp/article/jmps/105/2/92/_pdf]
      • Tohoku Region
        • Iwate Prefecture
          • Shimohei-gun
    Satoshi Matsubara, et al (2008) JAKOKA: 2008 Annual Meeting of the Japan Association of Mineralogical Sciences, R4-02
    Matsubara, S., Miyawaki, R., Yokoyama, K., Shigeoka, M., Miyajima, H., Suzuki, Y., ... & Ishibashi, T. (2010). Momoiite and nagashimalite from the Tanohata mine, Iwate Prefecture, Japan. Bulletin of the National Museum of Nature and Science C, 36, 1-6.
    • Shikoku Island
      • Ehime Prefecture
        • Saijo City
    Tanaka, H. et al. (2010) Momoiite (Mn2+,Ca)3(V3+,Al)2Si3O12, a new manganese vanadium garnet from Japan. Journal of Mineralogical and Petrological Sciences 105, 92-96. [http://www.jstage.jst.go.jp/article/jmps/105/2/92/_pdf]
    Mineral and/or Locality  
    Search Google  
    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: July 31, 2014 12:43:21
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds