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Braunspat

A synonym

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Ankerite

Brownley Hill Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK

Sphärosiderite

Mulató Hill, Erdőbénye, Tokaj District, Borsod-Abaúj-Zemplén County, Hungary

Siderite

Kolomela Mine, Postmasburg, Tsantsabane Local Municipality, ZF Mgcawu District Municipality, Northern Cape, South Africa

Ankerite

Brownley Hill Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK

Sphärosiderite

Mulató Hill, Erdőbénye, Tokaj District, Borsod-Abaúj-Zemplén County, Hungary

Siderite

Kolomela Mine, Postmasburg, Tsantsabane Local Municipality, ZF Mgcawu District Municipality, Northern Cape, South Africa

Ankerite

Brownley Hill Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK

Sphärosiderite

Mulató Hill, Erdőbénye, Tokaj District, Borsod-Abaúj-Zemplén County, Hungary

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About BraunspatHide

Name:

Ancient German name, translating to "brown spar"

Synonym of:

Ankerite, Breunnerite, Mesitine Spar, Pistomesite, Siderite, Sideroplesite

A descriptive term for brown, iron-bearing carbonates, but mainly used for ankerite/Iron-bearing Dolomite.

Unique IdentifiersHide

Mindat ID:

26742

Long-form identifier:

mindat:1:1:26742:5

Chemical AnalysisHide

Oxide wt%:

	1	2
FeCO₃	20.88 %	27.11 %
MnCO₃	7.79 %	1.51 %
CaCO₃	49.87 %	60.58 %
MgCO₃	21.46 %	10.80 %
Total:	100 %	100 %

Sample references:

ID	Locality	Reference	Notes
1	Grand-Mambourg, Charleroi, Hainaut, Wallonia, Belgium	Bellière, M. (1926) Note sur des minéraux du Houiller. Annales de la Société géologique de Belgique: 49: B267.
2	" "	Bellière, M. (1926) Note sur des minéraux du Houiller. Annales de la Société géologique de Belgique: 49: B267.

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	Year	Locality	Pressure (GPa)	Temp (K)
0001273	Ankerite	Reeder R J, Dollase W A (1989) Structural variation in the dolomite-ankerite solid-solution series: An X-ray, Mossbauer, and TEM study sample AMNH 6376 American Mineralogist 74 1159-1167	1989		0	293
0001274	Ankerite	Reeder R J, Dollase W A (1989) Structural variation in the dolomite-ankerite solid-solution series: An X-ray, Mossbauer, and TEM study sample AMNH 8059 American Mineralogist 74 1159-1167	1989		0	293
0001449	Ankerite	Ross N L, Reeder R J (1992) High-pressure structural study of dolomite and ankerite American Mineralogist 77 412-421	1992		0	293
0001450	Ankerite	Ross N L, Reeder R J (1992) High-pressure structural study of dolomite and ankerite American Mineralogist 77 412-421	1992		1.9	293
0001451	Ankerite	Ross N L, Reeder R J (1992) High-pressure structural study of dolomite and ankerite American Mineralogist 77 412-421	1992		2.97	293
0001452	Ankerite	Ross N L, Reeder R J (1992) High-pressure structural study of dolomite and ankerite American Mineralogist 77 412-421	1992		4	293
0015665	Ankerite	Beran A, Zemann J (1977) Refinement and comparison of the crystal structures of a dolomite and of an Fe-rich ankerite Tschermaks Mineralogische und Petrographische Mitteilungen 24 279-286	1977	Erzberg, Etage Dreikonig, Styria, Austria	0	293
0000101	Siderite	Graf D L (1961) Crystallographic tables for the rhombohedral carbonates American Mineralogist 46 1283-1316	1961		0	293
0020837	Siderite	Effenberger H, Mereiter K, Zemann J (1981) Crystal structure refinements of magnesite, calcite, rhodochrosite, siderite, smithsonite, and dolomite, with discussion of some aspects of the stereochemistry of calcite type carbonates Zeitschrift fur Kristallographie 156 233-243	1981	Ivigtut, Greenland	0	293
0017561	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	0.02	293
0017562	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	1.89	293
0017563	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	3.48	293
0017564	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	4.89	293
0017565	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	7.31	293
0017566	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	14.4	293
0017567	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	18.37	293
0017568	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	18.82	293
0017569	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	19.19	293
0017570	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	28.62	293
0017571	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	30.6	293
0017572	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	36.3	293
0017573	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	38.5	293
0017574	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	39.05	293
0017575	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	39	293
0017576	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	41.2	293
0017577	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	43.9	293
0017578	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	44.14	293
0017579	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	45.13	293
0017580	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	46.4	293
0017581	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	46.92	293
0017582	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	47.2	293
0017583	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	47.49	293
0017584	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	49.2	293
0017585	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	51.9	293
0017586	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	52.6	293
0017587	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	54	293
0017588	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	55.96	293
0017589	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	55	293
0017590	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	55	293
0017591	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	55	293
0017592	Siderite	Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D (2010) Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition Physical Review B82 064110-8	2010	Invigtut, Greenland	55	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Ankerite'
loop_
_publ_author_name
'Reeder R J'
'Dollase W A'
_journal_name_full 'American Mineralogist'
_journal_volume 74 
_journal_year 1989
_journal_page_first 1159
_journal_page_last 1167
_publ_section_title
;
 Structural variation in the dolomite-ankerite solid-solution series: An X-ray,
 Mossbauer, and TEM study
 sample AMNH 6376
;
_database_code_amcsd 0001273
_chemical_formula_sum 'Ca1.007 Fe.542 Mg.451 C2 O6'
_cell_length_a 4.8240
_cell_length_b 4.8240
_cell_length_c 16.1217
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 324.905
_exptl_crystal_density_diffrn      3.091
_symmetry_space_group_name_H-M 'R -3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
CaA   0.00000   0.00000   0.00000   0.99800
FeA   0.00000   0.00000   0.00000   0.00200
MgB   0.00000   0.00000   0.50000   0.45100
FeB   0.00000   0.00000   0.50000   0.54000
CaB   0.00000   0.00000   0.50000   0.00900
C   0.00000   0.00000   0.24360   1.00000
O   0.24980  -0.03000   0.24471   1.00000
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
CaA 0.00928 0.00928 0.00882 0.00464 0.00000 0.00000
FeA 0.00928 0.00928 0.00882 0.00464 0.00000 0.00000
MgB 0.00690 0.00690 0.00816 0.00345 0.00000 0.00000
FeB 0.00690 0.00690 0.00816 0.00345 0.00000 0.00000
CaB 0.00690 0.00690 0.00816 0.00345 0.00000 0.00000
C 0.00875 0.00875 0.00922 0.00438 0.00000 0.00000
O 0.00867 0.01406 0.01620 0.00645 -0.00082 -0.00345

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.

Braunspat in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for BraunspatHide

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https://www.mindat.org/min-26742.html
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References for BraunspatHide

Reference List:

Significant localities for BraunspatHide

Showing 27 significant localities out of 12,914 recorded on mindat.org.

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.


Australia
New South Wales Northumberland County Woy Woy ⓘ Woy Woy Council Quarry	[Siderite var: Manganese-bearing Siderite] England (1987)
Tasmania West Coast municipality Zeehan mining district North Dundas ⓘ Renison Bell Mine	[Siderite] Bottrill et al. (2008)

Austria
Styria Leoben District Eisenerz ⓘ Styrian Erzberg	[Siderite] collection Landesmuseum Joanneum - Graz +3 other references

Bolivia
Cochabamba Ayopaya Province ⓘ Cerro Sapo	[Ankerite] PARTS (1981) +1 other reference

Brazil
Minas Gerais Nova Lima ⓘ Morro Velho mine	[Siderite] Rocks & Minerals: 63: 43. +4 other references

France
Auvergne-Rhône-Alpes Isère Grenoble Susville ⓘ Villaret pit	[Siderite] Belot (1978) +1 other reference

Germany
Saxony Mittelsachsen Freiberg Zug ⓘ Beschert Glück Mine	[Ankerite var: Tautoklin] Breithaupt (1830)

Ireland
Munster Cork County Mizen Peninsula Ballydehob Audley Mines ⓘ Ballycummisk Mine	[Siderite] Flannery (n.d.)

Italy
Tuscany Lucca Province Stazzema ⓘ Bottino Mine	[Siderite] Bonazzi et al. (1992)

Norway
Nordland Narvik Kjøpsvik ⓘ Norcem Quarry	[Ankerite] Tomas Husdal personal communication ...

Portugal
ⓘ Panasqueira Mines	[Siderite] Figueiras +5 other references

Russia
Primorsky Krai Dalnegorsk Urban District Dalnegorsk ⓘ Nikolaevskiy Mine	[Siderite] Dobovol'skaya et al. (1990) +1 other reference

Spain
Galicia Lugo Quiroga Folgoso do Courel Santa Eufemia ⓘ La Campa mine	[Siderite] Victor Pais Collection

UK
England Cornwall Carn Brea Pool ⓘ Tincroft Mine	[Siderite] Phillips (1823) +3 other references
Cumbria Eden Alston Moor Nenthead ⓘ Smallcleugh Mine	[Ankerite] Dunham Sir K C

USA
Connecticut Hartford County New Britain ⓘ Arute Field	[Siderite] Moritz (n.d.)
ⓘ State Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut)	[Siderite] Moritz (n.d.) +1 other reference
Litchfield County Roxbury Mine Hill ⓘ Roxbury Iron Mine	[Siderite] Palache et al. (1951) +1 other reference
New London County Salem ⓘ Renz Quarry	[Siderite] Visual ID by Mike Polletta And Jeremy ...
New Hampshire Coos County Gorham ⓘ Mascot Mine	[Siderite] A. Plante collection +3 other references
North Carolina Catawba County Hickory ⓘ Martin Marietta Quarry (Hickory Quarry)	[Ankerite] K. Wood collection
Davidson County Carolina Slate Belt Cid Mining District ⓘ Conrad Hill Mine (Dodge Hill Mine)	[Siderite] Steve Adams +1 other reference
Pennsylvania Chester County Phoenixville ⓘ Black Rock Tunnel (Conrail Tunnel) ?	[Ankerite] Ref.1 The Mineralogy of Pennsylvania +2 other references
Washington Grant County Coulee City ⓘ Coulee City Marina	[Siderite] T Douglas Schonewald Collection
King County Snoqualmie Mining District Hansen Creek ⓘ Humpback Mountain Slump Zone	[Siderite] Eric He's Collection +1 other reference
Wisconsin Dodge County Iron Ridge Mining District (Neda Iron Mining District) Iron Ridge Mines ⓘ Iron Ridge Mine (Neda Mine; Oliver Mine)	[Siderite] Hawley (1934)
ⓘ Mayville Shaft Mine	[Siderite] Hawley (1934)

Quick NavTop About Braunspat Unique Identifiers Chemical Analysis Crystal Structure Other Information Braunspat in petrology Internet Links References Significant localities Locality List