Nanisivik Mine, Nanisivik, Baffin Island, Nunavut Territory, Canada

15 x 9.8 x 6.4 cm

Sold

Ex. A. E. Seaman Museum, Lance Hampel collection

Thin bladed crystals of Marcasite which have pseudomorphed to Pyrite. There have been quite a number of Pyrite specimens from this location which were erroneously identified as pseudomorphs but were actually elongated Pyrite crystals. This is the real deal exhibiting the bladed habit often seen in Marcasite. The surfaces have a metallic golden luster. Also present are white to clear colored, double terminated Quartz crystals, golden brown colored, double terminated Calcite crystals, and curved, saddle shaped, off white colored Dolomite crystals. There is a thread on the Friends of Mineralogical Forum regarding these pseudomorphs at link to thread . If you scroll a little way down in the thread, you will find a Mineralogical Record article on the mine. There is a detailed description of the pseudomorphs in the article (you will have to scroll a ways down - look for the description of Pyrite). Interestingly, one of the authors, George Robinson, was the former curator at the Seaman Museum.

Condition: Very Good

Flaws: Nothing Appreciable

This mineral is also found in the following galleries: Minerals From Canada | Sulfides and Sulfosalts | Quartz | Calcite | Carbonates | Pseudomorphs | Minerals Priced Between 300 and 499 Dollars