Chenguodaite (original) (raw)

A valid IMA mineral species

About ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Specific Gravity:

6.85 (Calculated)

Crystal System:

Orthorhombic

Name:

Named in honor of Chen Guoda (陈国达) (22 January 1912, Xinhui County, Guangdong Province, China - 7 April 2004, Changsha, Hunan province, China), geologist, professor, and founder of Diwa-Geodepression theory of tectonics.

Unique IdentifiersHide

This section is currently hidden. Click the show button to view.

Long-form identifier:

mindat:1:1:28953:3

7adaa05b-2b54-438c-b304-fe14758ee686

IMA Classification of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Type description reference:

Gu, X., Watanabe, M., Xie, X., Peng, S., Nakamuta, Y., Ohkawa, M., Hoshino, K., Ohsumi, K., Shibata, Y. (2008) Chenguodaite (Ag^9FeTe^2S^4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. Chinese Science Bulletin: 53(22): 3567-3573.

Classification of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

2.BA.60

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au

2.16.28.

2 : SULFIDES
16 : Miscellaneous

Mineral SymbolsHide

This section is currently hidden. Click the show button to view.

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

Physical Properties of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Density:

6.85 g/cm3 (Calculated)

Optical Data of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Anisotropism:

'indistinguishable anistropism'

Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 28.0%.

Colour in reflected light:

Light gray

Internal Reflections:

none

Chemistry of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Mindat Formula:

Ag9Fe3+Te2S4

Crystallography of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Crystal System:

Orthorhombic

Cell Parameters:

a = 12.769(2) Å, b = 14.814(2) Å, c = 16.233(1) Å

Ratio:

a:b:c = 0.862 : 1 : 1.096

Unit Cell V:

3,070.63 ų (Calculated from Unit Cell)

Comment:

point Group n.d.; Space Group n.d.

X-Ray Powder DiffractionHide

This section is currently hidden. Click the show button to view.

Powder Diffraction Data:

Geological EnvironmentHide

This section is currently hidden. Click the show button to view.

Type Occurrence of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

General Appearance of Type Material:

xenomorphic rounded or irregular shapes with the grain size 5―70 μm

Place of Conservation of Type Material:

Chinese Geological Museum, the catalogue number is M10487

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Gu, X., Watanabe, M., Xie, X., Peng, S., Nakamuta, Y., Ohkawa, M., Hoshino, K., Ohsumi, K., Shibata, Y. (2008) Chenguodaite (

Ag^9FeTe^2S^4

): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. Chinese Science Bulletin: 53(22): 3567-3573.

Synonyms of ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Related Minerals - Strunz-mindat GroupingHide

This section is currently hidden. Click the show button to view.

Other InformationHide

This section is currently hidden. Click the show button to view.

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 ChenguodaiteHide

This section is currently hidden. Click the show button to view.

References for ChenguodaiteHide

This section is currently hidden. Click the show button to view.

Reference List:

Gu, X., Watanabe, M., Xie, X., Peng, S., Nakamuta, Y., Ohkawa, M., Hoshino, K., Ohsumi, K., Shibata, Y. (2008) Chenguodaite (Ag^9FeTe^2S^4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. Chinese Science Bulletin: 53(22): 3567-3573.

Localities for ChenguodaiteHide

This section is currently hidden. Click the show button to view.

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 section is currently hidden. Click the show button to view.

- 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.