Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Iimoriite-(Y)

Big Photo

Trimouns Talc Mine, Luzenac, Ariège, Midi-Pyrénées, France
© Joan Rosell

Show Iimoriite-(Y) Photos (14)
Formula:
Y
 
2
[CO
 
3
|SiO
 
4
]
System:TriclinicColour:Buff-tan
Hardness:5½ - 6


Slight reaction with cold HCl.

Classification of Iimoriite-(Y)

IMA status:Approved 1967
Strunz 8th edition ID:8/B.08-10
Nickel-Strunz 10th (pending) edition ID:9.AH.05

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.
Dana 8th edition ID:53.1.3.1

53 : NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
1 : Insular SiO4 Groups and Other Anions of Complex Cations with (CO3)
Hey's CIM Ref.:17.4.9

17 : Silicates Containing other Anions
4 : Silicates with carbonates
mindat.org URL:http://www.mindat.org/min-2006.html
Please feel free to link to this page.

Type Occurrence of Iimoriite-(Y)

Co-type Localities:Fusamata, Kawamata, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka (Iisaka) Village, Kawamata, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan

Physical Properties of Iimoriite-(Y)

Lustre:Vitreous, Resinous
Diaphaneity (Transparency):Transparent
Colour:Buff-tan
Streak:White
Hardness (Mohs):5½ - 6
Cleavage:Distinct/Good
Density (measured):4.47 g/cm3
Density (calculated):4.36 g/cm3

Crystallography of Iimoriite-(Y)

Crystal System:Triclinic
Cell Parameters:a = 6.573Å, b = 6.651Å, c = 6.454Å
α = 116.44°, β = 92.34°, γ = 95.63°
Ratio:a:b:c = 0.988 : 1 : 0.97
Unit Cell Volume:V 250.3 ų
Z:2

Optical Data of Iimoriite-(Y)

Type:Biaxial (-)
RI values: nα = 1.753 nβ = 1.824 nγ = 1.830
2V:Measured: 31° , Calculated: 30°
Maximum Birefringence:δ = 0.077

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:distinct to strong
Pleochroism:Non-pleochroic

Chemical Properties of Iimoriite-(Y)

Formula:
Y
 
2
[CO
 
3
|SiO
 
4
]
Essential elements:C, O, Si, Y
All elements listed in formula:C, O, Si, Y

Relationship of Iimoriite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.AH.10Tundrite-(Ce)
Na
 
2
Ce
 
2
TiO
 
2
(SiO
 
4
)(CO
 
3
)
 
2
9.AH.10Tundrite-(Nd)
Na
 
3
(Nd,La)
 
4
(Ti,Nb)
 
2
(SiO
 
4
)
 
2
(CO
 
3
)
 
3
O
 
4
(OH)·2H
 
2
O
9.AH.15Paraspurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
9.AH.15Spurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
9.AH.20Ternesite
Ca
 
5
[SO
 
4
|(SiO
 
4
)
 
2
]
9.AH.25Britholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
[(OH,F)|(SiO
 
4
,PO
 
4
)
 
3
]
9.AH.25Britholite-(Y)
Ca
 
2
(Y,Ca)
 
3
[(OH,F)|(SiO
 
4
,PO
 
4
)
 
3
]
9.AH.25Ellestadite-(Cl)
Ca
 
10
[Cl
 
2
|(SO
 
4
)
 
3
|(SiO
 
4
)
 
3
]
9.AH.25Fluorbritholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
[(F,OH)|(SiO
 
4
,PO
 
4
)
 
3
]
9.AH.25Ellestadite-(F)
Ca
 
10
[(F,Cl,OH)
 
2
|(SO
 
4
)
 
3
|(SiO
 
4
)
 
3
]
9.AH.25Ellestadite-(OH)
Ca
 
10
[(OH,Cl,F)
 
2
|(SO
 
4
)
 
3
|(SiO
 
4
)
 
3
]
9.AH.25Mattheddleite
Pb
 
5
(Si
 
1.5
S
 
1.5
)O
 
12
(Cl,OH)
9.AH.25Tritomite-(Ce)
(Ce,La,Y,Th)
 
5
(Si,B)
 
3
(O,OH,F)
 
13
9.AH.25Tritomite-(Y)
(Y,Ca,La,Fe)
 
5
(Si,B,Al)
 
3
(O,OH,F)
 
13
9.AH.25Fluorcalciobritholite
(Ca,Ce)
 
5
 (SiO
 
4
,PO
 
4
)
 
3
F
9.AH.25IMA2009-005
Ca
 
2
(Y,Ca)
 
3
[(F,OH)|(SiO
 
4
,PO
 
4
)
 
3
]
Related Minerals - Hey's Index Grouping:

- +
17.4.1Tilleyite
Ca
 
5
[(CO
 
3
)
 
2
|Si
 
2
O
 
7
]
17.4.2Spurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
17.4.3Paraspurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
17.4.4Scawtite
Ca
 
7
Si
 
6
(CO
 
3
)O
 
18
·2H
 
2
O
17.4.5Fukalite
Ca
 
4
[CO
 
3
|(HSiO
 
4
)
 
2
]
17.4.6Meionite
Ca
 
4
[CO
 
3
|(Al
 
2
Si
 
2
O
 
8
)
 
3
]
17.4.7Cancrinite
Na
 
6
Ca
 
2
[(CO
 
3
)
 
2
|Al
 
6
Si
 
6
O
 
24
] · 2H
 
2
O
17.4.8Carletonite
KNa
 
4
Ca
 
4
Si
 
8
O
 
18
(CO
 
3
)
 
4
(OH,F)·H
 
2
O
17.4.10Kainosite-(Y)
Ca
 
2
(Y,Ce)
 
2
Si
 
4
O
 
12
CO
 
3
·H
 
2
O
17.4.11Caysichite-(Y)
Ca
 
2
Y
 
2
Si
 
4
O
 
10
(CO
 
3
)
 
3
·4H
 
2
O
17.4.12Lepersonnite-(Gd)
Ca(Gd,Dy)
 
2
[(UO
 
2
)
 
6
(OH)
 
6
(CO
 
3
)
 
2
(SiO
 
4
)]
 
4
 ·48(H
 
2
O)
17.4.13Ashburtonite
Pb
 
4
Cu
 
4
[(OH)
 
3
|Cl|(HCO
 
3
)
 
4
|Si
 
4
O
 
12
] · H
 
2
O
17.4.14Surite
Pb(Pb,Ca)(CO
 
3
)
 
2
(Al,Fe,Mg)
 
2
(Si,Al)
 
4
O
 
10
(OH)
 
2
17.4.15Tundrite-(Ce)
Na
 
2
Ce
 
2
TiO
 
2
(SiO
 
4
)(CO
 
3
)
 
2
17.4.16Tundrite-(Nd)
Na
 
3
(Nd,La)
 
4
(Ti,Nb)
 
2
(SiO
 
4
)
 
2
(CO
 
3
)
 
3
O
 
4
(OH)·2H
 
2
O

Other Names for Iimoriite-(Y)

Synonyms:
IMA1967-033
Other Languages:
Japanese:飯盛石
Russian:Иимориит-(Y)

Other Information

Fluorescence in UV light:none
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 Iimoriite-(Y)

Reference List:American Mineralogist (1920): 5: 140.

Kato, A. and Nagashima, K. (1970) In: Introduction to Japanese minerals, Geological Survey of Japan, 39: 85-86.

American Mineralogist (1973): 58: 140 (abstract).

Foord, E.E., Staatz, M.H., and Conklin, N.M. (1984) New data for iimoriite. American Mineralogist (1984): 69: 196-199.

Hughes, J.M., Foord, E.E., Jai-Nhuknan, ?., and Bell, J.M. (1996) The atomic arrangement of iimoriite-(Y), Y2(SiO4)(CO3). Canadian Mineralogist: 34: 817-820.

Internet Links for Iimoriite-(Y)

Search Engines:
  • Look for Iimoriite-(Y) on Google
  • Look for Iimoriite-(Y) images on Google
    • External Links:
  • Look for Iimoriite-(Y) on Webmineral
  • Look for Iimoriite-(Y) on Athena Mineralogy
  • Look for Iimoriite-(Y) on Wikipedia
  • Look for Iimoriite-(Y) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Iimoriite-(Y) in the Natural History Museum (London) online catalogue
  • Iimoriite-(Y) details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Edwards Minerals - Fine Specimens
  • Find Iimoriite-(Y) on www.crystalclassics.co.uk
  • Buy Minerals and Crystals from Crystalarium.com
  • rare and unusual minerals mainly crystallized
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Search for - Iimoriite-(Y) - on e-Rocks Mineral Sales & Auctions
  • Fine Minerals from Dan Weinrich Minerals
  • Lapis Mineral Magazin
  • Buy Fine Minerals from mineralsweb.com
  • Buy minerals from Mineralium.com
  • Wilensky Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Iimoriite-(Y)

    (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.
    France
     
    • Midi-Pyrénées
      • Ariège
        • Luzenac
    		[Le Cahier des Micromonteurs 1990, 4, p.3,8-12]
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Kawamata
    		Introduction to Japanese Min.(1970), 39 and 85-86
            • Iizaka (Iisaka) Village
    		Am Min 69:196-199
    Norway
     
    • Nordland
      • Tysfjord
        • Drag
    		Gunnar Raade: Minerals of Norway - the complete inventory. Kongsberg Mineralsymposium 2007, Kongsberg 2007
    Sweden
     
    • Värmland
      • Filipstad
    		Kristiansen, Roy (1993): Thalenitt-liknende mineraler fra Åskagen, Sverige. STEIN 20 (19), 7-8 + 58-60
    USA
     
    • Alaska
      • Prince of Wales-Outer Ketchikan Borough
        • Prince of Wales Island
          • Bokan Mountain
    		Am Min 69:106-199
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 17th Nov 2009 11:28:19