Franckeite Var: Potosiite
This comprehensive article explores the remarkable Potosiite specimen discovered in 2004, delving into its intricate geological composition and providing an in-depth analysis of its unique features. The study draws upon information from www.mindat.org and detailed descriptions from various sources to present a thorough examination of this rare triclinic lead, antimony, iron, tin sulfosalt.
The 2004 discovery of Potosiite marked a significant milestone in the field of mineralogy, unveiling a rare and superb crystallized specimen. This article aims to unravel the complexities of Potosiite, focusing on its mineralogical characteristics, crystal structure, and associated sulfosalts, particularly Franckeite.
The Mineralogical Composition:
Potosiite is identified as a triclinic sulfosalt, encompassing lead, antimony, iron, and tin. The specimen exhibits remarkable crystalline formations, with highly lustrous, heavily striated, tabular blades measuring up to 9 mm. Some of these blades are twinned, adding an additional layer of uniqueness to the mineral.
Geological Context:
The Potosiite specimen is found in association with the equally rare triclinic sulfosalt Franckeite. This geological pairing enhances the specimen's significance, providing valuable insights into the coexistence of distinct sulfosalt minerals. The piece also features a small amount of acicular Jamesonite, contributing to the mineral assemblage.
The X-ray Diffraction Identification:
To ensure the accuracy of mineral identification, X-ray Diffraction (XRD) has been employed to positively confirm the presence of Potosiite in the specimen. This technique plays a crucial role in validating mineralogical compositions and contributes to the reliability of scientific findings.
Significance and Rarity:
The rarity of Potosiite, coupled with its superb crystalline structure, elevates its importance in the realm of mineral collecting. The 2004 find not only expanded our understanding of sulfosalts but also showcased the intricate beauty and geological significance of this particular specimen.
In conclusion, this article provides a detailed examination of the Potosiite specimen discovered in 2004. By leveraging information from www.mindat.org and detailed descriptions, we have explored the mineralogical composition, geological context, and significance of this rare triclinic sulfosalt. The utilization of X-ray Diffraction ensures the accuracy of mineral identification, contributing to the broader understanding of Potosiite and its place in the world of minerals and fossils.
References:
Mindat.org. (www.mindat.org)
Here at Andaluz we have a rare piece of Franckeite Var: Potosiite.
From the find of 2004, this specimen hosts two rare sulfosalts. This specimen is a rare, superb, crystallized specimen of the triclinic lead, antimony, iron, tin sulfosalt Potosiite consisting of several, extremely rare, highly lustrous, heavily striated, tabular blades (some are twinned) of Potosiite measuring up to 9 mm sitting atop crystallized and the equally rare triclinic lead, tin, iron, antimony sulfosalt Franckeite. The piece has a small amount of associated acicular Jamesonite as well. The Potosiite has been positively identified through X-ray Diffraction.
Reference: www.mindat.org. Picture ID: 196013 / 3KE-CHW