Haggertyite

Stephen E. Haggerty

Formula:

BaFe²⁺₄Fe³⁺₂Ti₅MgO₁₉

Lustre:

Metallic

Hardness:

5

Specific Gravity:

4.74 (Calculated)

Crystal System:

Hexagonal

Member of:

Hawthorneite Subgroup > Magnetoplumbite Group

Name:

Named after Stephen E. Haggerty (b. 1938, South Africa), of the University of Massachusetts, Amherst, Massachusetts, U.S.A., in recognition of his important studies of titanate minerals in the Earth’s mantle, and of oxide minerals in general.

Type Locality:

ⓘ Crater of Diamonds State Park (Prairie Creek Lamproite), Murfreesboro, Pike County, Arkansas, USA

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IMA Classification of HaggertyiteHide

Classification of HaggertyiteHide

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Physical Properties of HaggertyiteHide

Optical Data of HaggertyiteHide

Anisotropism:

Weak, dark brown

Bireflectance:

Not bireflectant

Reflectivity:

Wavelength	R1	R2	imR1	imR2
470nm	17.3%	16.9%	5.31%	5.13%
546nm	16.8%	16.35%	5.19%	4.90%
589nm	16.9%	16.3%	5.29%	4.92%
650nm	17.1%	16.4%	5.42%	5.00%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 17.3%.
R₁ shown in black, R₂ shown in red, ^imR₁ shown in green, ^imR₂ shown in blue

Colour in reflected light:

Pale gray

Internal Reflections:

None

Pleochroism:

Non-pleochroic

Comments:

Full in-air reflectivity data are given in plot form in Grey et al. (1998).

Chemistry of HaggertyiteHide

Crystallography of HaggertyiteHide

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)
0002051	Haggertyite	Grey I E, Velde D, Criddle A J (1998) Haggertyite, a new magnetoplumbite-type titanate mineral from the Prairie Creek (Arkansas) lamproite American Mineralogist 83 1323-1329		1998		0	293

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Haggertyite' loop_ _publ_author_name 'Grey I E' 'Velde D' 'Criddle A J' _journal_name_full 'American Mineralogist' _journal_volume 83 _journal_year 1998 _journal_page_first 1323 _journal_page_last 1329 _publ_section_title ; Haggertyite, a new magnetoplumbite-type titanate mineral from the Prairie Creek (Arkansas) lamproite ; _database_code_amcsd 0002051 _chemical_formula_sum '(Ba.69 K.31) Fe5.86 Ti5.42 Mg.72 O19' _cell_length_a 5.9369 _cell_length_b 5.9369 _cell_length_c 23.3445 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 712.582 _exptl_crystal_density_diffrn 4.731 _symmetry_space_group_name_H-M 'P 63/m m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,1/2-z' 'y,-x+y,1/2+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_occupancy _atom_site_U_iso_or_equiv BaA 0.33333 0.66667 0.75000 0.69000 0.01360 KA 0.33333 0.66667 0.75000 0.31000 0.01360 Fe1 0.00000 0.00000 0.00000 0.38000 0.01090 Ti1 0.00000 0.00000 0.00000 0.56000 0.01090 Mg1 0.00000 0.00000 0.00000 0.06000 0.01090 Fe2 0.00000 0.00000 0.25860 0.38000 0.01010 Ti2 0.00000 0.00000 0.25860 0.09000 0.01010 Mg2 0.00000 0.00000 0.25860 0.03000 0.01010 Fe3 0.33333 0.66667 0.02658 0.72000 0.01310 Ti3 0.33333 0.66667 0.02658 0.22000 0.01310 Mg3 0.33333 0.66667 0.02658 0.06000 0.01310 Fe4 0.33333 0.66667 0.19034 0.32000 0.01150 Ti4 0.33333 0.66667 0.19034 0.62000 0.01150 Mg4 0.33333 0.66667 0.19034 0.06000 0.01150 Fe5 0.16780 0.33561 0.89243 0.44000 0.01130 Ti5 0.16780 0.33561 0.89243 0.50000 0.01130 Mg5 0.16780 0.33561 0.89243 0.06000 0.01130 O1 0.00000 0.00000 0.15230 1.00000 0.01700 O2 0.33333 0.66667 0.94080 1.00000 0.01400 O3 0.18410 0.36820 0.25000 1.00000 0.01400 O4 0.14950 0.29890 0.05290 1.00000 0.01200 O5 0.49980 0.99960 0.15040 1.00000 0.01300

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Type Occurrence of HaggertyiteHide

Synonyms of HaggertyiteHide

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Relationship of Haggertyite to other SpeciesHide

Related Minerals - Strunz-mindat GroupingHide

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References for HaggertyiteHide

Localities for HaggertyiteHide

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
Western Australia Derby-West Kimberley Shire Ellendale ⓘ Ellendale 9 East	Jaques et al. (2020)
Noonkanbah Station ⓘ Walgidee Hills	Jaques et al. (2020)
USA (TL)
Arkansas Pike County Murfreesboro ⓘ Crater of Diamonds State Park (Prairie Creek Lamproite) (TL)	Grey et al. (1998)