Momma, K., Ikeda, T., Nagase, T., Kuribayashi, T., Honma, C., Nishikubo, K., Takahashi, N., Takada, M., Matsushita, Y., Miyawaki, R. and Matsubara, S. (2020) Bosoite, a new silica clathrate mineral from Chiba Prefecture, Japan. Mineralogical Magazine: 84(6): 941-948.

Classification of BosoiteHide

Strunz-mindat (2024):

4.DA.

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
A : With small cations: Silica family

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Bs	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of BosoiteHide

Lustre:

Vitreous

Colour:

Colorless

Streak:

White

Hardness:

6½ - 7 on Mohs scale

Tenacity:

Brittle

Fracture:

Irregular/Uneven

Density:

2.04 g/cm³ (Calculated)

Optical Data of BosoiteHide

Type:

Uniaxial (+)

Chemistry of BosoiteHide

Mindat Formula:

SiO₂ · nC_xH_2x+2

Elements listed:

C, H, O, Si - search for minerals with similar chemistry

Crystallography of BosoiteHide

Crystal System:

Hexagonal

Class (H-M):

6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal

Space Group:

P6/mmm

Setting:

P6/mmm

Cell Parameters:

a = 13.9020(3) Å, c = 11.2802(2) Å

Ratio:

a:c = 1 : 0.811

Unit Cell V:

1887.99 Å³

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)
0020684	Bosoite	Gerke H, Gies H (1984) Studies on clathrasils. IV. Crystal structure of dodecasil 1H, a synthetic clathrate compound of silica Zeitschrift fur Kristallographie 166 11-22		1984	synthetic	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Bosoite'
loop_
_publ_author_name
'Gerke H'
'Gies H'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 166 
_journal_year 1984
_journal_page_first 11
_journal_page_last 22
_publ_section_title
;
 Studies on clathrasils. IV. Crystal structure of dodecasil 1H,
 a synthetic clathrate compound of silica
;
_database_code_amcsd 0020684
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Si17 O34'
_cell_length_a 13.783
_cell_length_b 13.783
_cell_length_c 11.190
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1840.976
_exptl_crystal_density_diffrn      1.843
_symmetry_space_group_name_H-M 'P 6/m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,z'
  'x,x-y,-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,z'
  '-x+y,y,-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,z'
  '-y,-x,-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Si1   0.41860   0.20930   0.22520   0.02259
Si2   0.38680   0.00000   0.36270   0.02993
Si3   0.26280   0.13140   0.00000   0.02061
Si4   0.33333   0.66667   0.13840   0.02474
O1   0.10520   0.39330   0.30310   0.08450
O2   0.54290   0.27150   0.81640   0.06830
O3   0.34050   0.17020   0.11390   0.05519
O4   0.36010   0.00000   0.50000   0.05766
O5   0.18650   0.00000   0.00000   0.05074
O6   0.50000   0.00000   0.34510   0.09170
O7   0.33333   0.66667   0.00000   0.12746
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Si1 0.02280 0.02180 0.02380 0.01090 -0.00450 -0.00900
Si2 0.03230 0.03190 0.02560 0.01590 -0.00760 0.00000
Si3 0.01600 0.02200 0.02380 0.00800 0.00000 0.00000
Si4 0.02890 0.02890 0.01640 0.01440 0.00000 0.00000
O1 0.06190 0.11520 0.75700 0.05850 0.03500 0.00470
O2 0.02290 0.08050 0.10120 0.01140 -0.00970 -0.00490
O3 0.05360 0.07610 0.03670 0.02680 0.00000 0.00000
O4 0.06270 0.09590 0.01210 0.04790 0.00000 0.00000
O5 0.04180 0.01320 0.09700 0.00660 0.00000 0.00000
O6 0.06100 0.15230 0.06210 0.07620 0.00000 0.00000
O7 0.17350 0.17350 0.03820 0.08680 0.00000 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
5.907 Å	(30)
5.301 Å	(100)
5.100 Å	(33)
3.773 Å	(44)
3.535 Å	(62)
3.331 Å	(38)

Comments:

From Type Description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere	>4.45
17 : Marine authigenic Hadean minerals (see also #24)
Near-surface Processes
24 : Authigenic minerals in terrestrial sediments (see also #17)

Type Occurrence of BosoiteHide

Type Locality:

ⓘ Arakawa, Minamiboso city, Chiba Prefecture, Japan

General Appearance of Type Material:

Occurs as epitaxial intergrowths on chibaite. Platy shapes parallel to {0001} with individual crystals about 10-50 µm thick and 50-300 µm in diameter.

Place of Conservation of Type Material:

Type material is deposited in the collections of the National Museum of Nature and Science, Amakubo, Tsukuba, Ibaraki, Japan, registered number NMS-M43775, and the Tohoku University Museum, Aoba, Sendai, Japan, mineral collection specimen A-153

Geological Setting of Type Material:

In small quartz and calcite veins partly developed at fault planes in tuffaceous sandstone and mudstone.

Associated Minerals at Type Locality:

Quartz	Pyrite	Melanophlogite	Gypsum	Clinoptilolite-Na
Clinoptilolite-Na	Chibaite	Calcite	Baryte

Reference:

Synonyms of BosoiteHide

IMA2014-023

UM2011-21-SiO:CH

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Bosoite associated with Chibaite

SiO₂ · n(CH₄, C₂H₆, C₃H₈, i-C₄H₁₀) (n = 3/17 (max))

Related Minerals - Strunz-mindat Grouping Hide

4.DA.	Chibaite	SiO₂ · n(CH₄, C₂H₆, C₃H₈, i-C₄H₁₀) (n = 3/17 (max))	Iso. m3 (2/m 3) : Fd3
4.DA.	Carbon Dioxide Ice	CO₂
4.DA.05	Quartz	SiO₂	Trig. 3 2 : P3₁ 2 1
4.DA.10	Opal	SiO₂ · nH₂O
4.DA.10	Tridymite	SiO₂	Tric. 1
4.DA.15	Cristobalite	SiO₂	Tet. 4 2 2 : P4₁ 2₁ 2
4.DA.20	Mogánite	SiO₂	Mon. 2/m
4.DA.25	Melanophlogite	46SiO₂ · 6(N₂,CO₂) · 2(CH₄,N₂)	Tet. 4/mmm (4/m 2/m 2/m)
4.DA.30	Lechatelierite	SiO₂	Amor.
4.DA.35	Coesite	SiO₂	Mon. 2/m : B2/b
4.DA.40	Stishovite	SiO₂	Tet. 4/mmm (4/m 2/m 2/m) : P4₂/mnm
4.DA.45	Keatite	SiO₂	Tet. 4 2 2 : P4₃ 2₁ 2
4.DA.50	Seifertite	SiO₂	Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DA.55	Quartz-beta	SiO₂	Hex. 6 2 2 : P6₄ 2 2

Fluorescence of BosoiteHide

In UV light:

Not fluorescent under SW or LW

Other InformationHide

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for BosoiteHide

mindat.org URL:

https://www.mindat.org/min-46149.html
Please feel free to link to this page.

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External Links:

Look for Bosoite on Webmineral

Look for Bosoite on Wikipedia

Look for Bosoite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for BosoiteHide

Reference List:

Momma, K., Ikeda, T., Nishikubo, K., Takahashi, N., Honma, C., Takada, M., Furukawa, Y., Nagase, T., Kudh, Y. (2011) New silica clathrate minerals that are isostructural with natural gas hydrates. Nature Communications 2, article number 196, published 15 February 2011 (mentioned as an unnamed).

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) New minerals and nomenclature modifications approved in 2014, CNMNC Newsletter No 21. Mineralogical Magazine, 78 (4) 797-804 doi:10.1180/minmag.2014.078.4.03

Momma, K., Ikeda, T., Nagase, T., Kuribayashi, T., Honma, C., Nishikubo, K., Takahashi, N., Takada, M., Matsushita, Y., Miyawaki, R. and Matsubara, S. (2014) Bosoite, a new silica clathrate mineral. Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, 2014 Annual Meeting of Japan Association of Mineralogical Sciences, Session ID R1-10: 36-36.

(2023) Bosoite. Handbook of Mineralogy. Mineralogical Society of America

Localities for BosoiteHide

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 references and 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 (e.g. from pseudomorphs).

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

Japan (TL)

Chiba Prefecture

Minamiboso city

ⓘ Arakawa (TL)

Mineralogical Magazine, 78, 797-804.

Daisuke Nishio-Hamane (2018) Compression behavior of chibaite and bosoite. in abstracts of the 22nd IMA Meeting Melbourne p 468

Bosoite

About BosoiteHide

Unique IdentifiersHide

IMA Classification of BosoiteHide