Orlandiite

A valid IMA mineral species

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Photos of Orlandiite (14)

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Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Orlandiite

Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

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About OrlandiiteHide

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Formula:

Pb₃(SeO₃)(Cl,OH)₄ · H₂O

Colour:

Colourless to white

Lustre:

Vitreous, Silky

Specific Gravity:

5.66 (Calculated)

Crystal System:

Triclinic

Name:

Named by I. Campostrini, C.M. Gramaccioli, and F. Demartin in 1999 in honor of Paolo Orlandi (b.1946), Italian mineralogist, University of Pisa, Italy. He has described several new minerals.

Type Locality:

ⓘ Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy

Chemically similar to guangyuanite and wangkuirenite.

Unique IdentifiersHide

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Mindat ID:

7056

Long-form identifier:

mindat:1:1:7056:6

GUID
(UUID V4):

67bce8a9-e4e5-4583-97bc-4db79e219824

Classification of OrlandiiteHide

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Physical Properties of OrlandiiteHide

Optical Data of OrlandiiteHide

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Crystallography of OrlandiiteHide

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)
0005881	Orlandiite	Demartin F, Gramaccioli C M, Pilati T (2003) The crystal structure of orlandiite, Pb3Cl4(SeO3).H2O, a complex case of twinning and disorder The Canadian Mineralogist 41 1147-1153		2003		0	293

CIF Raw Data - click here to closedata_global _chemical_name_mineral 'Orlandiite' loop_ _publ_author_name 'Demartin F' 'Gramaccioli C M' 'Pilati T' _journal_name_full 'The Canadian Mineralogist' _journal_volume 41 _journal_year 2003 _journal_page_first 1147 _journal_page_last 1153 _publ_section_title ; The crystal structure of orlandiite, Pb3Cl4(SeO3).H2O, a complex case of twinning and disorder ; _database_code_amcsd 0005881 _chemical_formula_sum 'Pb1.5 Se.5 Cl2 O2 H' _cell_length_a 8.136 _cell_length_b 8.430 _cell_length_c 9.233 _cell_angle_alpha 62.58 _cell_angle_beta 71.84 _cell_angle_gamma 75.13 _cell_volume 529.293 _exptl_crystal_density_diffrn 5.700 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,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 Pb3 0.56890 0.60620 0.75530 0.75000 0.03840 Pb*3 0.56890 0.10480 0.75430 0.25000 0.05490 Se(a) 0.49040 0.86850 0.38600 0.37500 0.01150 Se(b) 0.49260 0.75320 0.38500 0.37500 0.01280 Se*(a) 0.50420 0.64130 0.61780 0.12500 0.02530 Se*(b) 0.51280 0.74430 0.61670 0.12500 0.02180 Pb1 0.11376 -0.00862 0.71741 1.00000 0.02380 Pb2 0.12075 0.48200 0.71678 1.00000 0.02470 Cl1 0.19243 0.09558 0.96161 1.00000 0.02510 Cl2 0.19225 0.60008 0.95409 1.00000 0.02220 Cl3 -0.13721 0.33192 0.65464 1.00000 0.02370 Cl4 0.13242 0.16944 0.34662 1.00000 0.02210 Wat 0.49920 0.75550 0.99670 1.00000 0.06680 O1a 0.67100 0.74150 0.43320 1.00000 0.03620 O2a 0.57420 0.06380 0.33430 0.50000 0.02670 O2b 0.56570 0.56530 0.33470 0.50000 0.01180 O3a 0.36850 0.81440 0.57990 0.50000 0.02390 O3b 0.36610 0.67070 0.57960 0.50000 0.02810 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 Pb3 0.01060 0.07300 0.01490 -0.00040 -0.00210 -0.00770 Pb'3 0.04410 0.08290 0.01730 -0.00360 -0.01800 0.00070 Se(a) 0.01170 0.01050 0.01010 -0.00080 -0.00100 -0.00370 Se(b) 0.00940 0.02170 0.00790 -0.00280 -0.00160 -0.00650 Pb1 0.02200 0.02420 0.02430 -0.00170 -0.00740 -0.00860 Pb2 0.02370 0.02600 0.02490 -0.00090 -0.00780 -0.01090 Cl1 0.02400 0.02740 0.02150 -0.00450 -0.00350 -0.00860 Cl2 0.01610 0.02580 0.01870 -0.00260 0.00030 -0.00720 Cl3 0.02400 0.02120 0.02020 0.00100 -0.00230 -0.00760 Cl4 0.02100 0.02870 0.01910 -0.00810 -0.00600 -0.00870 Wat 0.03500 0.05330 0.13130 -0.01150 0.00000 -0.06330

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References for OrlandiiteHide

Reference List:

Campostrini, I., Gramaccioli, C.M., Demartin, F. (1999) Orlandiite, Pb3Cl4(SeO3)3•H2O, a new mineral species, and an associated lead-copper selenite chloride from the Baccu Locci mine, Sardinia, Italy, Canadian Mineralogist: 37: 1493-98.

Campostrini, I., Gramaccioli, C.M., Demartin, F. (1999) Orlandiite, Pb3Cl4(SeO3)3•H2O, a new mineral species, and an associated lead-copper selenite chloride from the Baccu Locci mine, Sardinia, Italy, Canadian Mineralogist: 37: 1493-98.

Demartin, F., Gramaccioli, C.M., Pilati, T. (2003) The crystal structure of orlandiite, Pb3Cl4(SeO3)·H2O, a complex case of twinning and disorder. The Canadian Mineralogist: 41: 1147-1153.

Localities for OrlandiiteHide

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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

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- 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.

Argentina
La Rioja Province General Lamadrid Department Villa Castelli ⓘ Sierra de Cacho	Grundmann, G., & Förster, H. J. (2018). The Sierra de Cacheuta Vein-Type Se Mineralization, Mendoza Province, Argentina. Minerals, 8(4), 127.
Mendoza Province Luján de Cuyo department Cacheuta District Sierra de Cacheuta Cerro de Cacheuta ⓘ Cacheuta Mine ?	Grundmann, G., & Förster, H. J. (2018). The Sierra de Cacheuta Vein-Type Se Mineralization, Mendoza Province, Argentina. Minerals, 8(4), 127.
Germany
Hesse Darmstadt Darmstadt-Dieburg Mühltal Nieder-Ramstadt ⓘ Wingertsberg Quarry	Belendorff, K. (2021): Neue mineralogische Raritäten aus dem Odenwald. Mineralien-Welt 32(2), 8-22 (in German).
Italy (TL)
Sardinia South Sardinia Province Villaputzu ⓘ Baccu Locci Mine (TL)	[AmMin 85:1563] Campostrini, I., Gramaccioli, C. M. and Demartin, F. (1999): Orlandiite, Pb3Cl4(SeO3)3•H2O, a new mineral species, and an associated lead-copper selenite chloride from the Baccu Locci mine, Sardinia, Italy. Can. Mineral. 37, 1493-1498 Campostrini, I. & Gramaccioli, C. M. (2001): Selenium-rich secondary minerals from the Baccu Locci mine (Sardinia, Italy). Neues Jahrbuch fuer Mineralogie, Abhandlungen 177, 37-59.