Heptasartorite

Heptasartorite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Heptasartorite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Heptasartorite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

About HeptasartoriteHide

Wolfgang Sartorius von Waltershausen

Formula:

Tl₇Pb₂₂As₅₅S₁₀₈

Colour:

Lead-grey, grey

Lustre:

Metallic

Hardness:

3 - 3½

Specific Gravity:

4.9 (Calculated)

Crystal System:

Monoclinic

Member of:

Sartorite Group

Name:

Named for it relationship to sartorite and for hepta- (Greek for seven) for the seven-fold superstructure of a 4.2 Å subcell. The unofficial term M-sartorite has been used to described more than one species of hepta-, ennea- and hendekasatroite. The root name is for Wolfgang Sartorius von Waltershausen (1809 - 1876) Professor of Mineralogy, University of Göttingen, Germany.

Type Locality:

ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Sartorite homologous series.
Physical and optical properties similar to enneasartorite and hendekasartorite. Careful quantitative chhemical analysis and/or single-crystal X-ray diffraction is needed to distinguish them.

Unique IdentifiersHide

IMA Classification of HeptasartoriteHide

Classification of HeptasartoriteHide

Mineral SymbolsHide

Physical Properties of HeptasartoriteHide

Optical Data of HeptasartoriteHide

Anisotropism:

Moderate to weak, brown-violet and deep green

Bireflectance:

Weak

Reflectivity:

Wavelength	R1	R2
400nm	38.7%	41.9%
420nm	37.7%	41.1%
440nm	36.9%	40.5%
460nm	36.3%	40.2%
470nm	36.0%	40.0%
480nm	35.7%	39.7%
500nm	35.2%	39.0%
520nm	34.5%	38.3%
540nm	33.7%	37.5%
546nm	33.5%	37.5%
560nm	33.0%	36.7%
580nm	32.2%	35.8%
589nm	31.7%	35.3%
600nm	31.4%	34.9%
620nm	30.6%	34.0%
640nm	29.9%	33.2%
650nm	29.6%	32.8%
660nm	29.3%	32.6%
680nm	28.9%	32.2%
700nm	28.7%	31.8%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 41.9%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

Greyish-white, white

Internal Reflections:

Rare, deep red

Pleochroism:

Weak

Chemistry of HeptasartoriteHide

Crystallography of HeptasartoriteHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of HeptasartoriteHide

Synonyms of HeptasartoriteHide

Relationship of Heptasartorite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for HeptasartoriteHide

References for HeptasartoriteHide

Localities for HeptasartoriteHide

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.

Russia
Sverdlovsk Oblast Serovsky District Turya river Tur'insk ⓘ Vorontsovskoe deposit (Vorontsovsk gold deposit; Vorontsovka deposit)	Plášil et al. (2018) +1 other reference
Switzerland (TL)
Valais Goms Binn Fäld ⓘ Lengenbach Quarry (TL)	Mineralogical Magazine +1 other reference