Sakuraiite (original) (raw)

A valid IMA mineral species

About SakuraiiteHide

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Formula:

(Cu,Zn,Fe)3(In,Sn)S4

Note: The formula is also given as (Cu,Zn,Fe,In,Sn)S, as suggested by Kissin & Owens (1986). The correct formula appears uncertain since the crystal structure has not been determined yet.

Colour:

Greenish steel-grey

Name:

Named in 1965 by Akira Kato in honor of Dr. Kin-ichi Sakurai (December 11, 1912, Tokyo – October 6, 1993), after Kin-ichi Sakurai, amateur mineralogist of Tokyo. He described and/or provided type material for half a dozen species. The mineral kinichilite is also named in his honor.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3506:0

b1cf8767-d0ca-4340-b190-c4f29b7557b8

IMA Classification of SakuraiiteHide

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IMA Formula:

(Cu,Zn,Fe)3(In,Sn)S4

Type description reference:

Classification of SakuraiiteHide

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2.CB.05b

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.

2.9.2.5

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1

6.1.22

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
1 : Sulphostannates and other sulfides containing Sn

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 SakuraiiteHide

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Colour:

Greenish steel-grey

Streak:

Lead grey with an olive tint

Hardness:

VHN100=243 - 282 kg/mm2 - Vickers

Optical Data of SakuraiiteHide

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Anisotropism:

almost isotropic

Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 22.6%.

Colour in reflected light:

purplish olive gray with a red tint

Chemistry of SakuraiiteHide

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Mindat Formula:

(Cu,Zn,Fe)3(In,Sn)S4

Note: The formula is also given as (Cu,Zn,Fe,In,Sn)S, as suggested by Kissin & Owens (1986). The correct formula appears uncertain since the crystal structure has not been determined yet.

Crystallography of SakuraiiteHide

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Cell Parameters:

a = 5.4563(24) Å

Unit Cell V:

162.44 ų (Calculated from Unit Cell)

Morphology:

exsolution texture with stannite

Comment:

Primitive cell, with possible space groups P432, P-43m or Pm3m.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of SakuraiiteHide

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General Appearance of Type Material:

In exsolution texture with stannite, to 0.5 mm.

Place of Conservation of Type Material:

National Science Museum, Tokyo, Japan, M15843; National School of Mines,
Paris, France; Harvard University, Cambridge, Massachusetts, 108788; National Museum of
Natural History, Washington, D.C., USA, 120592

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Kato, A. (1965) Sakuraiite, a new mineral. Chigaku Kenkyu (Earth Science Studies): Sakurai: 1-7.

Synonyms of SakuraiiteHide

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Other Language Names for SakuraiiteHide

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Relationship of Sakuraiite to other SpeciesHide

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Structurally related to group(s):

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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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 SakuraiiteHide

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References for SakuraiiteHide

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Reference List:

Momma, Koichi, Miyawaki, Ritsuro, Matsubara, Satoshi, Shigeoka, Masako, Nagase, Toshiro, Kamada, Seiji, Ozawa, Shin, Ohtani, Eiji, Shimizu, Masaaki, Kato, Akira (2017) The crystal chemistry of sakuraiite. Acta Crystallographica Section A Foundations and Advances, 73. doi:10.1107/s2053273317086648

Localities for SakuraiiteHide

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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.