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

Kozoite-(La)

Big Photo

Mitsukoshi, Hizen-cho, Higashi-Matsuura-gun, Saga Prefecture, Kyushu Island, Japan
© 2008 JBS

Show Kozoite-(La) Photos (2)
Formula:
(La,Nd)(CO
 
3
)(OH)
System:OrthorhombicColour:pink, yellow, white
Name:In allusion to its composition with dominant lanthanum, and its relationship to Kozoite-(Nd).


Ancylite Group. The lanthanum analogue of Kozoite-(Nd).

Classification of Kozoite-(La)

IMA status:Approved 2002
Strunz 8th edition ID:5/0.0-
Nickel-Strunz 10th (pending) edition ID:5.DC.05

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
C : With large cations
mindat.org URL:http://www.mindat.org/min-25673.html
Please feel free to link to this page.

Type Occurrence of Kozoite-(La)

Type Locality:Mitsukoshi, Hizen-cho, Higashi-Matsuura-gun, Saga Prefecture, Kyushu Island, Japan
General Appearance of Type Material:zoned spherules to 0.5mm
Geological Setting of type material:alkali olivine basalt
Associated Minerals at type locality:
Lanthanite-(Nd)Kozoite-(Nd)

Physical Properties of Kozoite-(La)

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:pink, yellow, white
Streak:white
Density (calculated):4.16 g/cm3

Crystallography of Kozoite-(La)

Crystal System:Orthorhombic
Cell Parameters:a = 4.986Å, b = 8.513Å, c = 7.227Å
Ratio:a:b:c = 0.586 : 1 : 0.849
Unit Cell Volume:V 306.7 ų
Z:2
X-Ray Powder Diffraction:
d-spacingIntensity
5.54 (32)
4.31 (100)
3.69 (72)
2.93 (57)
2.33 (50)
2.06 (48)

Chemical Properties of Kozoite-(La)

Formula:
(La,Nd)(CO
 
3
)(OH)
Idealised Formula:
La(CO
 
3
)(OH)
All elements listed in formula:C, H, La, Nd, O
Analytical Data:(CO2 and H2O calculated)
CaO (6.30)
SrO (1.36)
La2O3 (35.55)
Ce2O3 (0.00)
Pr2O3 (4.68)
Nd2O3 (17.60)
Sm2O3 (1.15)
Eu2O3 (0.00)
Gd2O3 (1.49)
Tb2O3 (0.00)
Dy2O3 (0.09)
Er2O3 (0.04)
Y2O3 (3.88)
CO2 (23.17)
H2O (5.87)
Empirical Formula:
(La
 
0
·41Ca
 
0
·21Nd
 
0
·20Y
 
0
·07Pr
 
0
·05Sr
 
0
·02Gd
 
0
·02Sm
 
0
·01)
 
0
·99(CO
 
3
)
 
1
·00[(OH)
 
0
·74(H
 
2
O)
 
0
·25]
 
0
·99
Common Impurities:Nd

Relationship of Kozoite-(La) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.DC.05Ancylite-(Ce)
SrCe[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Calcioancylite-(Ce)
(Ca,Sr)Ce(CO
 
3
)
 
2
OH·H
 
2
O
5.DC.05Calcioancylite-(Nd)
(Nd,Ce)
 
3
Ca(CO
 
3
)
 
4
(OH)
 
3
·H
 
2
O
5.DC.05Gysinite-(Nd)
Pb(Nd,La)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Ancylite-(La)
Sr(La,Ce)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.05Kozoite-(Nd)
(Nd,La,Sm,Pr)[OH|CO
 
3
]
5.DC.10Kamphaugite-(Y)
Ca(Y,REE)[OH|(CO
 
3
)
 
2
] · H
 
2
O
5.DC.15Sheldrickite
NaCa
 
3
(CO
 
3
)
 
2
F
 
3
·H
 
2
O
5.DC.20Thomasclarkite-(Y)
(Na,Ce)(Y,REE)[(OH)
 
3
|HCO
 
3
] · 4H
 
2
O
5.DC.25Peterbaylissite
(Hg-Hg)
 
1.5
[OH|CO
 
3
] · 2H
 
2
O
5.DC.30Clearcreekite
(Hg-Hg)
 
1.5
[OH|CO
 
3
] · 2H
 
2
O
5.DC.35Niveolanite
NaBe(CO
 
3
)(OH)·2H
 
2
O

Other Names for Kozoite-(La)

Synonyms:
IMA2002-054
Other Languages:
Japanese:弘三石-(La)
Russian:Козоит-(La)

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 Kozoite-(La)

Reference List:Miyawaki, R., Matsubara, S., Yokoyama, K., Iwano, S., Hamasaki, K., Yukinorii, I. (2003): Kozoite-(La), La(CO3)(OH), a new mineral from Mitsukoshi, Hizen-cho, Saga Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 98, #4, 137-141 (August 2003).

Internet Links for Kozoite-(La)

Search Engines:
  • Look for Kozoite-(La) on Google
  • Look for Kozoite-(La) images on Google
    • External Links:
  • Look for Kozoite-(La) on Webmineral
  • Look for Kozoite-(La) on Athena Mineralogy
  • Look for Kozoite-(La) on Wikipedia
  • Look for Kozoite-(La) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Kozoite-(La) in the Natural History Museum (London) online catalogue
  • Kozoite-(La) details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • High-end worldwide specimens & outstanding customer service
  • Fabre Minerals - search for Kozoite-(La) specimens
  • Buy fine minerals and gemstones from Pala International
  • Buy Minerals and Crystals from Crystalarium.com
  • SpiriferMinerals.com - high quality specimens
  • rare and unusual minerals mainly crystallized
  • Top quality minerals from Kristalle of California
  • Buy minerals from Mineralium.com
  • The Arkenstone - Fine Minerals
  • Lapis Mineral Magazin
  • Rare and Unusual minerals at Mineralogical Research Company
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Kozoite-(La)

    (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
     
    • Kyushu Island
      • Saga Prefecture
        • Higashi-Matsuura-gun
          • Hizen-cho
    		American Mineralogist, (2000) 85, 1076–1081
    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: 3rd Nov 2009 21:35:57