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Sakhaite-Harkerite solid solution

A solid-solution series between two end-member minerals

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Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia

Harkerite, etc.

Tazheranskii Massif, Russia

Harkerite

Ariccia, Metropolitan City of Rome Capital, Lazio, Italy

Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia

Harkerite, etc.

Tazheranskii Massif, Russia

Harkerite

Ariccia, Metropolitan City of Rome Capital, Lazio, Italy

Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia

Harkerite, etc.

Tazheranskii Massif, Russia

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About Sakhaite-Harkerite solid solutionHide

Series Formula:

Ca₄₈Mg₁₆(BO₃)₃₂(CO₃)₁₆ · 2(H₂O,HCl) to Ca₄₈Mg₁₆[AlSi₄O₁₅(OH)]₄(BO₃)₁₆(CO₃)₁₆ · 2(H₂O,HCl)

A series between Sakhaite and Harkerite

Unique IdentifiersHide

Mindat ID:

53177

Long-form identifier:

mindat:1:1:53177:3

Chemical AnalysisHide

Oxide wt%:

	1
SiO₂	12.74 %
B₂O₃	9.20 %
Al₂O₃	2.51 %
FeO	0.87 %
MgO	11.32 %
CaO	46.31 %
CO₂	13.9 %
Cl	1.26 %
H₂O	1.92 %
Total:	100.03 %

Empirical formulas:

Sample ID	Empirical Formula
1	Ca_47.12Mg_16.02[Al_0.70Fe3+_0.17Si_3.03O₁₅(OH)]₄(B_0.94O₃)₁₆(C_1.13O₃)₁₆ · 2(H₂O,HCl)

Sample references:

ID	Locality	Reference	Notes
1	Camas Malag, Torrin, Broadford, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK	Davies, W. O.; Machin, M. P. (1970) Isomorphous replacements in harkerite and the relation of sakhaite to harkerite. The Canadian Mineralogist, 10 (4). p.689-695.	Wet chemical analysis by I.V. Nikitina (1966) from a skarn sample. Formula normalized to 158 (O,OH,Cl) by Davis and Machin.

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	Temp (K)
0012390	Sakhaite	Yakubovich O V, Steele I M, Gavrilenko P G, Urusov V S (2005) Crystal structure of sakhaite from the Solongo deposit in connection with the crystal chemical interpretation of the sakhaite-harkerite mineral series Crystallography Reports 50 226-234	2005	Solongo deposit, Vitim Plateau, Buryatia, Zabaykalye, Russia	293
0012459	Sakhaite	Yakubovich O V, Egorov-Tismenko Y K, Simonov M A, Belov N V (1978) Crystal structure of natural sakhaite Ca3Mg[BO3]2[CO3]0.36H2O* Doklady Akademii Nauk SSSR 239 1103-1106	1978		293
0000564	Harkerite	Giuseppetti G, Mazzi F, Tadini C (1977) The crystal structure of harkerite American Mineralogist 62 263-272	1977		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Sakhaite'
loop_
_publ_author_name
'Yakubovich O V'
'Steele I M'
'Gavrilenko P G'
'Urusov V S'
_journal_name_full 'Crystallography Reports'
_journal_volume 50 
_journal_year 2005
_journal_page_first 226
_journal_page_last 234
_publ_section_title
;
 Crystal structure of sakhaite from the Solongo deposit in connection with
 the crystal chemical interpretation of the sakhaite-harkerite mineral series
;
_database_code_amcsd 0012390
_chemical_compound_source 'Solongo deposit, Vitim Plateau, Buryatia, Zabaykalye, Russia'
_chemical_formula_sum '(Mg1.649 Fe.351) Ca6 C2 B3.51 Si.49 Al.12 O18.888 Cl.408 H.816'
_cell_length_a 14.679
_cell_length_b 14.679
_cell_length_c 14.679
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 3162.929
_exptl_crystal_density_diffrn      2.926
_symmetry_space_group_name_H-M 'F d 3 m'
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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
Mg   0.00000   0.50000   0.00000   0.82460   0.00880
Fe   0.00000   0.50000   0.00000   0.17540   0.00880
Ca   0.12500   0.37706   0.12500   1.00000   0.02490
C   0.25000   0.25000   0.00000   1.00000   0.06200
B  -0.03510   0.28510  -0.03510   0.87740   0.01200
Si  -0.01170   0.26170  -0.01170   0.12260   0.01200
Al   0.37500   0.37500  -0.12500   0.12000   0.06000
O1   0.00590   0.36030   0.00590   0.88000   0.02220
O1*  -0.00500   0.37000  -0.00500   0.12000   0.02220
O2   0.22960   0.33300   0.02040   0.50000   0.06400
O3   0.44200   0.30800  -0.05800   0.12000   0.06000
Wat4   0.35000   0.40000  -0.15000   0.10200   0.13000
Clhcl   0.35000   0.40000  -0.15000   0.10200   0.13000

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.

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References for Sakhaite-Harkerite solid solutionHide

Reference List:

Evans, R. James, Groat, Lee A., Cempírek, Jan, Škoda, Radek, Grew, Edward S., Bernard, Cyrielle (2018) The crystal chemistry of the sakhaite–harkerite solid solution. American Mineralogist, 103 (11) 1749-1760 doi:10.2138/am-2018-6563

Localities for Sakhaite-Harkerite solid solutionHide

Showing 21 localities.

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.

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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.


China
Guangdong Heyuan Lianping Co. ⓘ Dading Fe-Sn deposit	[Harkerite] Wang (1983) +1 other reference
Hunan Hengyang Changning Co. Dayishan Sn-polymetallic ore field ⓘ Banbianjie prospect	[Sakhaite] Rongwen Zhou and Zhishun Chen (1991)
ⓘ Qiliping Sn-Fe deposit	[Sakhaite] Yang Guangming et al. (1985) +1 other reference

Italy
Lazio Metropolitan City of Rome Capital ⓘ Alban Hills	[Harkerite] Barbieri et al. (1973) +1 other reference
ⓘ Ariccia	[Harkerite] Juroszek et al. (Ti 5 Fe)
Bracciano ⓘ SH2 deep well	[Harkerite] Cavarretta et al. (1987) +2 other references

Kazakhstan
Karaganda Region Balkhash Sayak Cu ore field ⓘ Sayak 4 Deposit (Sayak IV Deposit)	[Harkerite] Pekov (1998)

Namibia
Otjozondjupa Region Otavi Constituency Kombat ⓘ Kombat Mine	[Harkerite, Sakhaite] Dunn (1991)

North Korea
North Hwanghae Province Yonsan County Holdong worker's district ⓘ Holdong Au deposit	[Sakhaite] Handbook of Mineralogy

Russia
Buryatia Yeravninsky District Ozernoe ore cluster ⓘ Solongo B deposit	[Sakhaite] [AmMin 85:1322] +2 other references
Irkutsk Oblast Nizhneilimsky District Zheleznogorsk-Ilimsky ⓘ Korshunovskoye iron deposit	[Sakhaite] Mazurov et al. (2007)
Sakha Polar Yakutia Dogdo River Basin Tas-Khayakhtakh Range ⓘ Titovskoe B deposit	[Harkerite, Sakhaite] Aleksandrov (1998)
Izvestkovyi Stream ⓘ Snezhnoe B ore occurrence	[Sakhaite] Galuskina et al. (2008)
ⓘ Tazheranskii Massif	[Harkerite] Koneva et al. (1991)

Sweden
Värmland County Filipstad Nordmark Odal Field ⓘ Brattfors Mine	[Harkerite] Holtstam et al. (1995)

UK
Scotland Highland Eilean á Chèo Isle of Skye Broadford Kilchrist ⓘ Marble quarries	[Harkerite]
Torrin ⓘ Camas Malag	[Harkerite] Tilley (1951)

USA
California Riverside County Jurupa Valley Crestmore ⓘ Crestmore quarries	[Harkerite] Grew et al. (1999) +1 other reference
New York Essex County Keene Township Cascade Mountain ⓘ Cascade Slide	[Harkerite] Grew et al. (1999) +1 other reference

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