Smoky Quartz (Alpine)
Cavradi gorge, Tujetsch, Surselva Region
6.5 x 5.9 x 6.8 CM (cabinet)
Good Alpine Swiss Quartz has a look that is unlike any other. This has a main crystal 6 CM in size that has a warm brownish hue and is gem clear. The main crystal faces are glass-like and lustrous in close to perfect condition- only a very tiny nick as seen in the photos. The matrix is all quartz and has a few partial and complete crystals that offset the main prism nicely.
A sizable matrix densely covered with white to colorless Vuagnatite crystals and contrasting McGuinnessite in green spheres. Vuagnatite is a rare mineral discovered in 1975, and McGuinnessite is very rare, discovered in 1981. This is from the type locale for Mcguinnessite, and is a very good specimen of both species. This could easily yield several fine thumbnails if trimmed out. Very good color and bright sparkling luster make this an unusually attractive rarity.
A single chisel tip Barite crystal partly jacketed in Fluorite (uncommon on these), Calcite and Pyrite crystals. Translucent, with some color zoning and a rosy core, this is a sharp example from this famed find. The Fluorites are not often seen on the Niobec Barites, these are gemmy and colorless but the pyrite adds a yellow hue to some. Nearly all of these have broken terminations as they grew on the roof of the pocket and fell off long ago. This one is nearly perfect, a slight cleave is noted on the tip as the only issue.