Dr Atsushi Kyono
Mineralogy, Crystallography, Mineral physics
Mailing Address:
Division of Earth Evolution Sciences
Graduated School of Life and Environmental Sciences
University of Tsukuba
Tennodai 1-1-1, Tsukuba, Ibaraki,
305-8572, Japan
E-mail: 
Research: Structural physics of minerals
Research interests: My research interests in mineralogy range from field studies through experimental
investigations of mineral crystal chemistry, structures and stability to
quantum mechanical descriptions of bonding and reactions in mineral structures.
Using powder and single-crystal X-ray diffractions, X-ray photoelectron,
IR, electron microprobe, solid-state reactions, and hydrothermal synthesis,
I have been shedding light on the atomic scale response of various minerals
(including organic materials) to the pressures and temperatures experienced
under the conditions of their formation in the Earth's surface and interior.
This provides crucially important information regarding the partitioning
and chemical state in the Earth and other planets.
Doctral dissertation: The influence of Tl+ cation on crystal structures and mineralizations, and the material physics induced by inert pair effect
1997 B.Sc. University of Tsukuba
20. Atsushi Kyono: Compositional variability and crystal structural features of guanacoite.
American Mineralogist, 93, 501-507, 2008.
19. Mariko Nagashima, Masahide Akasaka, Atsushi Kyono, Kuniaki Makino, Ko Ikeda: Distribution of chromium among the octahedral
sites in chromian epidote from Iratsu, central Shikoku, Japan. Journal
of Mineralogical and Petrological Sciences, 102, 240-254, 2007.
18. Atsushi Kyono: Experimental study of the effect of light intensity on arsenic sulfide
(As4S4) alteration. Journal of Photochemistry and Photobiology A: Chemistry,
189, 15-22, 2007.
17. Mikio Masaoka, Atsushi Kyono: Single crystal growth of lead vanado-chlorapatite Pb5(VO4)3Cl using CsCl flux method. Materials Letters, 60, 3922-3926, 2006.
16. Mikio Masaoka, Atsushi Kyono, Tamao Hatta, Mitsuyoshi Kimata: Single crystal growth of Pb5(PxAs1-xO4)3Cl solid solution with apatite type structure. Journal of Crystal Growth,
292, 129-135, 2006.
15. Mihoko Hoshino, Mitsuyoshi Kimata, Norimasa Nishida, Atsushi Kyono, Masahiro Shimizu and Sigeru Takizawa: Crystal chemistry of allanite from
the Daibosatsu Pass, Yamanashi, Japan. Mineralogical Magazine, 69, 403-423,
2005
14 Atsushi Kyono, Mitsuyoshi Kimata, Tamao Hatta: Light-induced degradation dynamics in
realgar: in situ structural investigation using single crystal X-ray diffraction
study and X-ray photoelectron spectroscopy. American Mineralogist, 90,
1563-1570, 2005.
13. Takuya Echigo, Mitsuyoshi Kimata, Atsushi Kyono, Masahiro Shimizu and Tamao Hatta: Re-investigation on the crystal structure
of whewellite [Ca(C2O4)・H2O] and the dehydration mechanism of caoxite [Ca(C2O4)・3H2O]. Mineralogical Magazine, 69, 63-74, 2005.
12. Atsushi Kyono, Mitsuyoshi Kimata: Crystal structures of chalcostibite CuSbS2 and emplectite CuBiS2: Structural relationship of stereochemical activity between chalcostibite
and emplectite. American Mineralogist, 90, 162-165, 2005.
11. Atsushi Kyono, Mitsuyoshi Kimata, Tamao Hatta: Hydrothermal synthesis and structural
investigation of silver magnesium complex of benzenehexacarboxylic acid
(mellitic acid), Ag2Mg2[C6(COO)6]・8H2O with two-dimensional layered structure. Inorganica Chimica Acta, 357,
2519-2524, 2004.
10. Atsushi Kyono, Mitsuyoshi Kimata: Structural variations induced by difference of the
inert pair effect in the stibnite-bismuthinite solid solution series (Sb,Bi)2S3. American Mineralogist, 89, 932-940,
2004.
09. Atsushi Kyono, Mitsuyoshi Kimata: Structural reinvestigation of getchellite As0.98Sb1.02S3.00. American
Mineralogist, 89, 696-700, 2004.
08. Atsushi Kyono, Mitsuyoshi Kimata, Tamao Hatta: Aluminum position in Rb-feldspar as determined by X-ray photoelectron spectroscopy. Naturwissenschaften, 90, 414-418, 2003.
07. Atsushi Kyono, Mitsuyoshi Kimata: Crystal chemical behavior of Tl 6s2 lone electron pairs : inert pair effect imposing constraints on the mineral
species. Trends in Geochemistry, 2, 43-58, 2002.
06. Atsushi Kyono, Mitsuyoshi Kimata, Mamoru Matsuhisa, Yoshitaro Miyashita, Ken-ichi Okamoto:
Low-temperature crystal structures of stibnite implying orbital overlap
of 5s2 inert pair electrons. Physics and Chemistry of Minerals, 29, 254-260,
2002.
05. Atsushi Kyono, Mitsuyoshi Kimata: Refinement of the crystal structure of a synthetic non-stoichiometric Rb-feldspar. Mineralogical Magazine, 65, 523-531, 2001.
04. Atsushi Kyono, Mitsuyoshi Kimata: The crystal structure of synthetic TlAlSi3O8: Influence of inert pair effect on
thallium on feldspar structure. European Journal of Mineralogy, 13, 849-856,
2001.
03. Atsushi Kyono, Mitsuyoshi Kimata, Masahiro Shimizu: The crystal structure of TlAlSiO4: The role of the inert-pair effect in the
exclusion of Tl from silicate minerals. American Mineralogist, 85, 1287-1293,
2000.
02. Atsushi Kyono, Mitsuyoshi Kimata, Masahiro Shimizu, Shizuo Saito, Norimasa Nishida,
Tamao Hatta: Synthesis of thallium-leucite (TlAlSi2O6) pseudomorph after analcime. Mineralogical
Magazine, 63, 75-83, 1999.
01. Mitsuyoshi Kimata, Norimasa Nishida, Masahiro Shimizu,
Shizuo Saito, Tomoaki Matsui, Atsushi Kyono: Pyroanion linkage models for feldspar and silica minerals: Implication
for morphological and structural characteristics. Neues Jahrbuch fur Mineralogie
Monatshefte, 1998, 433-450, 1998.
