Gordaite (original) (raw)

A valid IMA mineral species

About GordaiteHide

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Formula:

NaZn4(SO4)(OH)6Cl · 6H2O

Colour:

Colourless, pale bluish, pale greenish

Name:

Named after the type locality, Sierra Gorda District, Tocopilla Province, Antofagasta Region, Chile.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:6975:1

c86e5259-7964-4234-a876-cd1bcb1b22d8

IMA Classification of GordaiteHide

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Type description reference:

Classification of GordaiteHide

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7.DF.50

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Physical Properties of GordaiteHide

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Colour:

Colourless, pale bluish, pale greenish

Cleavage:

Perfect
Perfect on {001}

Density:

2.627 g/cm3 (Measured) 2.640 g/cm3 (Calculated)

Optical Data of GordaiteHide

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RI values:

_n_ω = 1.561(8) _n_ε = 1.538(4)

δ = 0.023

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

Chemistry of GordaiteHide

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Mindat Formula:

NaZn4(SO4)(OH)6Cl · 6H2O

Crystallography of GordaiteHide

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Class (H-M):

3 - Rhombohedral

Cell Parameters:

a = 8.413 Å, c = 13.095 Å

Unit Cell V:

802.67 ų (Calculated from Unit Cell)

Crystal StructureHide

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ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0011072	Gordaite	Adiwidjaja G, Friese K, Klaska K H, Schluter J (1997) The crystal structure of gordaite NaZn4(SO4)(OH)6Cl*6H2O Zeitschrift fur Kristallographie 212 704-707		1997	San Francisco mine, Sierra Gorda, Chile	0	293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of GordaiteHide

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General Appearance of Type Material:

Colorless flakes associated with zincian paratacamite, and as interlocking anhedral plates up to 20 mm across.

Place of Conservation of Type Material:

University of Hamburg, Hamburg, Germany.

Geological Setting of Type Material:

Oxidized vein material from a base metal mine.

Associated Minerals at Type Locality:

Reference:

Schlüter, J., Klaska, K.-H., Friese, K., Adiwidjaja, G. and Gebhard, G. (1997): Gordaite, NaZn4(SO4)(OH)6Cl•6H2O, a new mineral from the San Francisco Mine, Antofagasta, Chile. Neues Jahrbuch für Mineralogie, Monatshefte: 1997: 155-162.

Synonyms of GordaiteHide

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Other Language Names for GordaiteHide

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Relationship of Gordaite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of GordaiteHide

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Other InformationHide

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Notes:

Soluble in cold HCl or HNO3.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for GordaiteHide

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References for GordaiteHide

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Reference List:

Brett, R., Evans, H. T., Jr., Gibson, E. K., Jr., Hedenquist, J. W., Wandless, M.-V. and Sommer, M. A. (1987): Mineralogical studies of sulfide samples and volatile concentrations of basalt glasses from the southern Juan de Fuca Ridge. Journal of Geophysical Research, 92(B11), 11373-11379. [as unnamed mineral (Na in formula not recognised)]

Schlüter, Jochen, Klaska, Karl-Heinz, Friese, Karen, Adiwidjaja, Gunadi, Gebhard, Georg (1997) Gordaite, NaZn4(SO4)(OH)6Cl·6H2O, a new mineral from the San Francisco Mine, Antofagasta, Chile. Neues Jahrbuch für Mineralogie - Monatshefte, 1997 (4) 155-162 doi:10.1127/njmm/1997/1997/155

Maruyama, Swami Area, Krause, Fernanda, Filho, Sergio Rodrigues Tavares, Leitão, Alexandre Amaral, Wypych, Fernando (2017) Synthesis, cation exchange and dehydration/rehydration of sodium gordaite: NaZn4(OH)6(SO4)Cl·6H2O. Applied Clay Science, 146. 100-105 doi:10.1016/j.clay.2017.05.029

Localities for GordaiteHide

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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.