Archerite

Archerite, etc.

Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Archerite

Cocklebiddy Cave, Cocklebiddy Roadhouse, Dundas Shire, Western Australia, Australia

Archerite

Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Archerite, etc.

Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Archerite

Cocklebiddy Cave, Cocklebiddy Roadhouse, Dundas Shire, Western Australia, Australia

Archerite

Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Archerite, etc.

Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Archerite

Cocklebiddy Cave, Cocklebiddy Roadhouse, Dundas Shire, Western Australia, Australia

About ArcheriteHide

Michael Archer

Formula:

(K,NH₄)(H₂PO₄)

Colour:

White

Lustre:

Sub-Vitreous, Waxy, Greasy

Hardness:

1 - 2

Specific Gravity:

2.23 (Calculated)

Crystal System:

Tetragonal

Name:

Named in 1977 by Peter Bridge for Michael Archer (25 March 1945, Sydney, Australia - ), professor of Biology, University of New South Wales, Australia. While a curator for the Queensland Museum, Archer discovered Petrogale cave and collected samples that would contain the new mineral.

Type Locality:

ⓘ Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Isostructural with:

Biphosphammite

This page provides mineralogical data about Archerite.

Unique IdentifiersHide

IMA Classification of ArcheriteHide

Classification of ArcheriteHide

Mineral SymbolsHide

Physical Properties of ArcheriteHide

Optical Data of ArcheriteHide

Type:

Uniaxial (-)

RI values:

n_ω = 1.511 - 1.513 n_ε = 1.468 - 1.470

Birefringence:

0.041

Max Birefringence:

δ = 0.043

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Moderate

Optical Extinction:

parallel

Chemistry of ArcheriteHide

Crystallography of ArcheriteHide

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)
0009154	Archerite	Frazer B C, Pepinsky R (1953) X-ray analysis of the ferroelectric transition in KH2PO4 Acta Crystallographica 6 273-285		1953	synthetic	0	126
0009155	Archerite	Frazer B C, Pepinsky R (1953) X-ray analysis of the ferroelectric transition in KH2PO4 Acta Crystallographica 6 273-285		1953	synthetic, low-temperature form	0	116
0017377	Archerite	West J (1930) A quantitative X-ray analysis of the structure of potassium dihydrogen phosphate (KH2PO4) _cod_database_code 1010458 Zeitschrift fur Kristallographie 74 306-335		1930		0	293
0013164	Archerite	Nelmes R J, Meyer G M, Tibballs J E (1982) The crystal structure of tetragonal KH2PO4 and KD2PO4 as a function of temperature Journal of Physics C: Solid State Physics 15 59-75		1982		0	293
0013165	Archerite	Nelmes R J, Meyer G M, Tibballs J E (1982) The crystal structure of tetragonal KH2PO4 and KD2PO4 as a function of temperature Journal of Physics C: Solid State Physics 15 59-75		1982		0	293
0013166	Archerite	Nelmes R J, Meyer G M, Tibballs J E (1982) The crystal structure of tetragonal KH2PO4 and KD2PO4 as a function of temperature Journal of Physics C: Solid State Physics 15 59-75		1982		0	293
0013167	Archerite	Nelmes R J, Meyer G M, Tibballs J E (1982) The crystal structure of tetragonal KH2PO4 and KD2PO4 as a function of temperature Journal of Physics C: Solid State Physics 15 59-75		1982		0	293
0019080	Archerite	Ono Y, Yamada N, Hikita T (1991) Structure refinements of the mixed crystal K0.78(NH4)0.22H2PO4 in the temperature range from 20 K to 250K Journal of the Physical Society of Japan 60 2673-2677		1991	synthetic	0	20
0015150	Archerite	Levy H A, Peterson S W, Simonsen S H (1954) Neutron diffraction study of the ferroelectric modification of potassium dihydrogen phosphate Physical Review 93 1120-1121		1954		0	113

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Archerite' loop_ _publ_author_name 'Frazer B C' 'Pepinsky R' _journal_name_full 'Acta Crystallographica' _journal_volume 6 _journal_year 1953 _journal_page_first 273 _journal_page_last 285 _publ_section_title ; X-ray analysis of the ferroelectric transition in KH2PO4 Sample: at T = 126 K Note: low-temperature polymorph of archerite ; _database_code_amcsd 0009154 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'K P (O4 H2)' _cell_length_a 10.48 _cell_length_b 10.48 _cell_length_c 6.90 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 757.830 _exptl_crystal_density_diffrn 2.385 _symmetry_space_group_name_H-M 'F -4 d 2' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' '1/4+y,1/4+x,3/4-z' '1/4+y,3/4+x,1/4-z' '3/4+y,1/4+x,1/4-z' '3/4+y,3/4+x,3/4-z' '1/4-x,1/4+y,3/4+z' '1/4-x,3/4+y,1/4+z' '3/4-x,1/4+y,1/4+z' '3/4-x,3/4+y,3/4+z' '1/4-y,1/4-x,3/4-z' '1/4-y,3/4-x,1/4-z' '3/4-y,1/4-x,1/4-z' '3/4-y,3/4-x,3/4-z' '1/4+x,1/4-y,3/4+z' '1/4+x,3/4-y,1/4+z' '3/4+x,1/4-y,1/4+z' '3/4+x,3/4-y,3/4+z' '1/2+y,-x,1/2-z' '1/2+y,1/2-x,-z' '+y,-x,-z' '+y,1/2-x,1/2-z' '1/2-x,-y,1/2+z' '1/2-x,1/2-y,+z' '-x,-y,+z' '-x,1/2-y,1/2+z' '1/2-y,x,1/2-z' '1/2-y,1/2+x,-z' '-y,x,-z' '-y,1/2+x,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 K 0.00000 0.00000 0.50000 1.00000 0.00595 P 0.00000 0.00000 0.00000 1.00000 0.00507 O 0.11800 0.03300 0.13200 0.50000 0.00608 O-H 0.11800 0.03300 0.13200 0.50000 0.00608

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of ArcheriteHide

Synonyms of ArcheriteHide

Other Language Names for ArcheriteHide

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Related Minerals - Strunz-mindat GroupingHide

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Internet Links for ArcheriteHide

References for ArcheriteHide

Localities for ArcheriteHide

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 Dundas Shire Cocklebiddy Roadhouse ⓘ Cocklebiddy Cave	R Bottrill collection
ⓘ Murra-El-Elevyn Cave	Mineralogical Magazine 39 (1973)
Madura Roadhouse ⓘ Petrogale Cave (TL)	Bridge (1977)
Bahamas
San Salvador District San Salvador Island ⓘ San Salvador caves	Onac B.P. et al. (2009)
Egypt
Luxor Governorate Karnak complex ⓘ Khonsu temple	Mahmoud et al. (2022)
Namibia
Khomas Region Windhoek Rural ⓘ Arnhem Cave	Martini (1994) +1 other reference
Saudi Arabia
Mecca Region ⓘ Hibashi Cave	Saudi Geological Survey Open-File ... +1 other reference
United Arab Emirates
Emirate of Fujairah ⓘ Kahf Kharrat Najem Cave (Shooting Star Cave)	Audra et al. (2017)