Itoigawaite

Itoigawaite

Itoigawa City, Niigata Prefecture, Japan

Itoigawaite, etc.

Oyashirazu beach, Ōmi, Itoigawa City, Niigata Prefecture, Japan

Itoigawaite

Itoigawa City, Niigata Prefecture, Japan

Itoigawaite, etc.

Oyashirazu beach, Ōmi, Itoigawa City, Niigata Prefecture, Japan

Itoigawaite

Itoigawa City, Niigata Prefecture, Japan

Itoigawaite, etc.

Oyashirazu beach, Ōmi, Itoigawa City, Niigata Prefecture, Japan

About ItoigawaiteHide

Classification of ItoigawaiteHide

Physical Properties of ItoigawaiteHide

Optical Data of ItoigawaiteHide

Type:

Biaxial (+)

RI values:

n_α = 1.664(2) n_β = 1.674(2) n_γ = 1.688(2)

2V:

Measured: 81°

Max Birefringence:

δ = 0.024

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

High

Dispersion:

strong

Chemical Properties of ItoigawaiteHide

Crystallography of ItoigawaiteHide

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0018940	Itoigawaite	Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M (2010) Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition American Mineralogist 95 724-735		2010	synthetic	0	293
0018941	Itoigawaite	Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M (2010) Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition American Mineralogist 95 724-735		2010	synthetic	0	293
0018942	Itoigawaite	Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M (2010) Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition American Mineralogist 95 724-735		2010	synthetic	0	293
0018943	Itoigawaite	Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M (2010) Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition American Mineralogist 95 724-735		2010	synthetic	0	293
0018944	Itoigawaite	Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M (2010) Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition American Mineralogist 95 724-735		2010	synthetic	0	293
0018945	Itoigawaite	Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M (2010) Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition American Mineralogist 95 724-735		2010	synthetic	0	293

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Itoigawaite' loop_ _publ_author_name 'Liebscher A' 'Dorsam G' 'Franz G' 'Wunder B' 'Gottschalk M' _journal_name_full 'American Mineralogist' _journal_volume 95 _journal_year 2010 _journal_page_first 724 _journal_page_last 735 _publ_section_title ; Crystal chemistry of synthetic lawsonite solid-solution series CaAl2 [(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition Note: Run #AU91 ; _database_code_amcsd 0018940 _chemical_compound_source 'Synthetic' _chemical_formula_sum '(Ca.273 Sr.727) Al2 Si2 O10 H4' _cell_length_a 5.3962 _cell_length_b 13.2461 _cell_length_c 5.8505 _cell_angle_alpha 90 _cell_angle_beta 124.39 _cell_angle_gamma 90 _cell_volume 345.092 _exptl_crystal_density_diffrn 3.357 _symmetry_space_group_name_H-M 'P 1 21/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Ca 0.34630 0.75000 0.68370 0.27300 Sr 0.34630 0.75000 0.68370 0.72700 Al1 0.50000 0.00000 0.00000 1.00000 Al2 0.50000 0.00000 0.50000 1.00000 Si 0.96510 0.13110 0.98880 1.00000 O1 0.94800 0.75000 0.93900 1.00000 O2 0.76700 0.11260 0.66300 1.00000 O3 0.78300 0.39360 0.12400 1.00000 O4 0.28900 0.07040 0.14500 1.00000 O-H5 0.28700 0.05540 0.64300 1.00000 Wat6 0.74200 0.75000 0.30600 1.00000

Type Occurrence of ItoigawaiteHide

Synonyms of ItoigawaiteHide

Other Language Names for ItoigawaiteHide

Relationship of Itoigawaite to other SpeciesHide

Common AssociatesHide

Related Minerals - Nickel-Strunz GroupingHide

Other InformationHide

References for ItoigawaiteHide

Internet Links for ItoigawaiteHide

Localities for ItoigawaiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.

Japan (TL)
Niigata Prefecture ⓘ Itoigawa City (TL)	Miyajima, H., Matsubara, S., Miyawaki, R. and Ito, K. (1999) Itoigawaite, a new mineral, the Sr analogue of lawsonite, in jadeitite from the Itoigawa-Ohmi district, central Japan. Mineralogical Magazine: 63: 909-916.; Shi, G., Harlow, G. E., Wang, J., Wang, J., Ng, E., Wang, X., ... & Cui, W. (2012) Mineralogy of jadeitite and related rocks from Myanmar: a review with new data. European Journal of Mineralogy: 24(2): 345-370.; Miyajima, H. (2014) Jadeitite from Itoigawa, Niigata Prefecture, central Japan. 21 st meeting of the International Mineralogical Association. p 200.
Ōmi ⓘ Oyashirazu beach (TL)	Miyajima, H., Matsubara, S., Miyawaki, R., Ito, K. (1999) Itoigawaite, a new mineral, the Sr analogue of lawsonite, in jadeitite from the Itoigawa-Ohmi district, central Japan. Mineralogical Magazine: 63: 909-916.
Tottori Prefecture Yazu district ⓘ Wakasa	Shimobayashi, N. (2004) Sr-bearing silicate minerals -itoigawaite and niigataite- in jadeitites and the related rocks from Wakasa district, Tottori Prefecture, Japan. Abstracts for the Meeting (2004) of the Mineralogical Society of Japan: k08-03.