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Henritermierite Group

A group of related mineral species

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Photos of Henritermierite Group (29)

Henritermierite Group Gallery Search Photos of Henritermierite Group

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Henritermierite, etc.

N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Henritermierite

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

Henritermierite

N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Henritermierite, etc.

N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Henritermierite

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

Henritermierite

N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Henritermierite, etc.

N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

Henritermierite

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

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About Henritermierite GroupHide

Formula:

Ca₃Z₂(SiO₄)₂[◻(OH)₄]

Z = Al, Mn³⁺

Member of:

Garnet Supergroup

This page provides mineralogical data about Henritermierite Group.

Unique IdentifiersHide

Mindat ID:

52728

Long-form identifier:

mindat:1:1:52728:4

GUID
(UUID V4):

0e07da62-de3b-4729-9571-67d5304f2369

Chemistry of Henritermierite GroupHide

Mindat Formula:

Ca₃Z₂(SiO₄)₂[◻(OH)₄]

Z = Al, Mn³⁺

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)
0007101	Holtstamite	Halenius U, Haussermann U, Harryson H (2005) Holtstamite, Ca3(Al,Mn3+)2(SiO4)3-x(H4O4)x, a new tetragonal hydrogarnet from Wessels Mine, South Africa European Journal of Mineralogy 17 375-382		2005	Wessels Mine, South Africa	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Holtstamite'
loop_
_publ_author_name
'Halenius U'
'Haussermann U'
'Harryson H'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 17 
_journal_year 2005
_journal_page_first 375
_journal_page_last 382
_publ_section_title
;
 Holtstamite, Ca3(Al,Mn3+)2(SiO4)3-x(H4O4)x, a new tetragonal hydrogarnet
 from Wessels Mine, South Africa
;
_database_code_amcsd 0007101
_chemical_compound_source 'Wessels Mine, South Africa'
_chemical_formula_sum 'Ca3 (Mn1.006 Al.994) Si1.95 O12 H4'
_cell_length_a 12.337
_cell_length_b 12.337
_cell_length_c 11.930
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1815.765
_exptl_crystal_density_diffrn      3.315
_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
CaA1   0.36580   0.00000   0.25000   1.00000   0.01370
CaA2   0.00000   0.25000   0.12500   1.00000   0.01510
Mn3+B   0.00000   0.00000   0.00000   0.50300   0.01060
AlB   0.00000   0.00000   0.00000   0.49700   0.01060
Si1   0.11800   0.00000   0.25000   0.92000   0.01060
Si2   0.50000   0.25000   0.12500   0.11000   0.01900
O1   0.29300   0.71670   0.09790   1.00000   0.01650
O2   0.15560   0.55000   0.04940   1.00000   0.01890
O3   0.44420   0.35860   0.02220   1.00000   0.01860
H   0.45300   0.33300   0.08200   1.00000   0.04000

Relationship of Henritermierite Group to other SpeciesHide

Member of:

Garnet Supergroup

Other Members of this group:

Berzeliite Group	X₃Z₂[TO₄]₃
Bitikleite Group	Ca₃Z₂[TO₄]₃
Cryolithionite	Na₃Al₂(LiF₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
Garnet Group	X₃Z₂(SiO₄)₃
Katoite	Ca₃Al₂[◻(OH)₄]₃	Iso. m3m (4/m 3 2/m) : Ia3d
Midbarite	Ca₃Mg₂(V₂Si)O₁₂	Iso. m3m (4/m 3 2/m)
Monteneveite	Ca₃Sb⁵⁺₂(Fe³⁺₂Fe²⁺)O₁₂	Iso. m3m (4/m 3 2/m) : Ia3d
Nikmelnikovite	Ca₁₂(Fe²⁺Fe³⁺₃Al₃◻)[SiO₄]₆[◻(OH)₄]₅◻₄	Trig. 3 : R3
Priscillagrewite-(Y)	(Ca₂Y)Zr₂(AlO₄)₃	Iso.
Schorlomite Group	Ca₃Z₂[SiO₄][TO₄]₂
UM1984-37-SiO:CrMn	Mn²⁺₃Cr³⁺₂(SiO₄)₃
Xuite	Ca₃Fe³⁺₂[(AlO₃(OH)]₃	Iso. m3m (4/m 3 2/m)
Yafsoanite	Ca₃Te⁶⁺₂(ZnO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d

Group Members:

Henritermierite	Ca₃Mn³⁺₂(SiO₄)₂[◻(OH)₄]	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
Holtstamite	Ca₃Al₂(SiO₄)₂[◻(OH)₄]	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd

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 Henritermierite GroupHide

mindat.org URL:

https://www.mindat.org/min-52728.html
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References for Henritermierite GroupHide

Reference List:

Grew, E. S., Locock, A. J., Mills, S. J., Galuskina, I. O., Galuskin, E. V., Hålenius, U. (2013) Nomenclature of the garnet supergroup. American Mineralogist, 98 (4) 785-811 doi:10.2138/am.2013.4201

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