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0 item @ $0.00  

Nagyagite with Rhodochrosite

#RW48541

Nagyagite with Rhodochrosite

#RW48541
Availability
Sold
Size
6.5 x 4 x 1.5 cm - Sm Cabinet 
Formula
[Pb(Pb,Sb)S2][(Au,Te)] (RRUFF)
Locality
Sacarîmb (Nagyag in Hungary), Romania
Notes
Discounts/Promos do NOT apply to this item
Tagged
tellurium , gold

Numerous silvery lead-grey somewhat foliated metallic plates to 7mm. There are SIX large plates from 5 to 7mm with numerous smaller plates throughout the specimen. As is typical of specimens from Nagyag, Rhodochrosite covers much of the crystals. Fortunately on this specimen alot of the crystals were not encrusted over by the Rhodochrosite. Cross twinned lamellae can be seen on the crystals. Nagyagite is a soft mineral (1.5 Mohs) with thin foliations much like Molybdenite.

This mineral gets its name from the type locality at Sacarîmb, also called Nagyág, in Romania. Nagyagite is an uncommon mineral that occurs in epithermal hydrothermal gold and tellurium bearing deposits. It can be found additionally in the Czech Republic, Kazakhstan, Armenia, Zimbabwe, the United States, Canada, Argentina, Australia, New Zealand, Japan, and Fiji among others. Although most other localities rarely surface on the market. Nagyag is the undoubtedly the best and most desirable and sought after. Even on Mindat, there are no other localities photographed. In our MineralPedia, we have the Czech Locality at Kasejovitz photographed. 

Type Locality

Nagyagite

Formula
[Pb(Pb,Sb)S2][(Au,Te)] 
Crystal System
Tetragonal 
Crystal Habit
Granular, Lamellar, Platy 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
lead gray, black 
Streak
gray black 
Class
Tetragonal - Disphenoidal 
Fracture
Hackly 
Hardness
1.5-2 

Data courtesy of Webmineral.

Collection
Robert J. Waidler Collection
Special Info
Type Locality
Mineralpedia
View Nagyagite
On Dakota Matrix
Previously Sold Nagyagite
On Dakota Matrix
Other Available Nagyagite
WebMineral
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Mindat
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