Braunite Group

Braunite, etc.

Praborna Mine, Saint-Marcel, Aosta Valley, Italy

Braunite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Braunite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Braunite, etc.

Praborna Mine, Saint-Marcel, Aosta Valley, Italy

Braunite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Braunite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Braunite, etc.

Praborna Mine, Saint-Marcel, Aosta Valley, Italy

Braunite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

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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)
0014719	Abswurmbachite	Reinecke T, Tillmanns E, Bernhardt H J (1991) Abswurmbachite, CuMn6[O8/SiO4], a new mineral of the braunite group: natural occurrence, synthesis, and crystal structure Neues Jahrbuch fur Mineralogie, Abhandlungen 163 117-143		1991		0	293
0000788	Braunite	de Villiers J P R (1980) The crystal structure of braunite II and its relation to bixbyite and braunite American Mineralogist 65 756-765		1980	Wessels mine, near Hotazel, South Africa	0	293
0000484	Braunite	de Villiers J P R (1975) The crystal structure of braunite with reference to its solid-solution behavior American Mineralogist 60 1098-1104		1975		0	293
0000543	Braunite	Moore P B, Araki T (1976) Braunite: its structure and relationship to bixbyite, and some insights on the genealogy of fluorite derivative structures American Mineralogist 61 1226-1240		1976		0	293
0008123	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		0.0001	293
0008124	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		0.0001	293
0008125	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		1.38	293
0008126	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		2.66	293
0008127	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		4.51	293
0008128	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		5.63	293
0008129	Braunite	Miletich R, Allan D R, Angel R J (1998) Structural control of polyhedral compression in synthetic braunite, Mn2+Mn3+6O8SiO4 Physics and Chemistry of Minerals 25 183-192		1998		7.69	293
0006420	Neltnerite	de Villiers J P R, Dobson S M, Buseck P R (1991) Refinement of the crystal structure of neltnerite, a member of the bixbyite-braunite group of minerals European Journal of Mineralogy 3 567-573		1991		0	293
0020385	Gatedalite	Halenius U, Bosi F (2015) Gatedalite, Zr(Mn2+2Mn3+4)SiO12, a new mineral species of the braunite group from Langban, Sweden Mineralogical Magazine 79 625-634		2015	Langban deposit, Langban, Sweden	0	293

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Abswurmbachite' loop_ _publ_author_name 'Reinecke T' 'Tillmanns E' 'Bernhardt H J' _journal_name_full 'Neues Jahrbuch fur Mineralogie, Abhandlungen' _journal_volume 163 _journal_year 1991 _journal_page_first 117 _journal_page_last 143 _publ_section_title ; Abswurmbachite, CuMn6[O8/SiO4], a new mineral of the braunite group: natural occurrence, synthesis, and crystal structure ; _database_code_amcsd 0014719 _chemical_formula_sum '(Mn6.44 Cu.56) Si O12' _cell_length_a 9.406 _cell_length_b 9.406 _cell_length_c 18.546 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1640.817 _exptl_crystal_density_diffrn 4.934 _symmetry_space_group_name_H-M 'I 41/a c d' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '1/4-y,3/4-x,3/4+z' '3/4-y,1/4-x,1/4+z' '1/4+y,3/4+x,3/4-z' '3/4+y,1/4+x,1/4-z' '1/4+y,3/4-x,1/4-z' '3/4+y,1/4-x,3/4-z' '1/4-y,3/4+x,1/4+z' '3/4-y,1/4+x,3/4+z' '1/2+x,-y,z' '+x,1/2-y,1/2+z' '1/2-x,y,-z' '-x,1/2+y,1/2-z' '1/2+x,y,1/2-z' '+x,1/2+y,-z' '1/2-x,-y,1/2+z' '-x,1/2-y,+z' '1/4+y,1/4+x,1/4+z' '3/4+y,3/4+x,3/4+z' '1/4-y,1/4-x,1/4-z' '3/4-y,3/4-x,3/4-z' '1/4-y,1/4+x,3/4-z' '3/4-y,3/4+x,1/4-z' '1/4+y,1/4-x,3/4+z' '3/4+y,3/4-x,1/4+z' '-x,y,1/2+z' '1/2-x,1/2+y,+z' 'x,-y,1/2-z' '1/2+x,1/2-y,-z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Mn1 0.00000 0.25000 0.12500 0.84000 0.01659 Cu1 0.00000 0.25000 0.12500 0.16000 0.01659 Mn2 0.00000 0.00000 0.00000 0.94000 0.00646 Cu2 0.00000 0.00000 0.00000 0.06000 0.00646 Mn3 0.25000 0.21001 0.00000 0.92000 0.00608 Cu3 0.25000 0.21001 0.00000 0.08000 0.00608 Mn4 0.22789 0.02210 0.62500 0.94000 0.00633 Cu4 0.22789 0.02210 0.62500 0.06000 0.00633 Si 0.00000 0.25000 0.37500 1.00000 0.00507 O1 0.14360 0.84700 0.94400 1.00000 0.01165 O2 0.14810 0.06650 0.05660 1.00000 0.00861 O3 0.07630 0.13240 0.92530 1.00000 0.00861

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