Kozoite-(La), La(CO3)(OH), a new mineral from Mitsukoshi, Hizen-cho, Saga Prefecture, Japan
| Accession number;03A0816210 |
| Title;Kozoite-(La), La(CO3)(OH), a new mineral from Mitsukoshi, Hizen-cho, Saga Prefecture, Japan |
| Author;MIYAWAKI R(National Sci. Museum, Tokyo, Jpn) MATSUBARA S(National Sci. Museum, Tokyo, Jpn) YOKOYAMA K(National Sci. Museum, Tokyo, Jpn) IWANO S(Fukuoka Ishinokai, Fukuoka, Jpn) HAMASAKI K(Fukuoka Ishinokai, Fukuoka, Jpn) YUKINORI I(Fukuoka Ishinokai, Fukuoka, Jpn) |
Journal Title;J Mineral Petrol Sci
|
Journal Code:G0150B
|
ISSN:1345-6296
|
|
VOL.98;NO.4;PAGE.137-141(2003)
|
| Figure&Table&Reference;FIG.4, TBL.2, REF.7 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Kozoite-(La), (La,Nd,Ca)(CO3)[(OH),(H2O)], occurs in cavities of alkali olivine basalt at Mitsukoshi, Hizen-cho, Higashi Matsuura-gun, Saga Prefecture, Japan. Minute crystals of kozoite-(La) form a spherical aggregate with kozoite-(Nd). Concentric zoning textures of kozoite-(La) and kozoite-(Nd) can be observed on the fracture of the spherical aggregate. Kozoite-(La) is the La-analogue of kozoite-(Nd) and is a new member of ancylite group minerals. It is orthorhombic, Pmcn, a=4.986(4).ANGS., b=8.513(6).ANGS., c=7.227(10).ANGS., V=306.7(6).ANGS.3, Z=4. The three strongest lines in the powder XRD patterns [d(.ANGS.),I/I0,hkl] are (4.31,100,110 and 020); (3.69,72,111 and 021) and (2.93,57,121 and 102). (author abst.) |
|
|
