Amethyst on Calcite (reverse scepters)

Amethyst on Calcite (reverse scepters)This specimen is an attractive display piece consisting of fine quality, sharp, gemmy, lustrous, prismatic, purple "reverse" scepter and simple prisms of Amethyst associated with good quality, gemmy, white colorless, modified scalenohedra of Calcite sitting on underlain "chlorite" on matrix. This piece is remarkable for Bolivia as it features a type of crystallization that is virtually unheard of for this country. A great piece for the quality and

and the robust crystals with their sharp

some of the largest overall Vauxite specimens in the world

this would make a superb addition to your collection

are typically etched

metallic Pyrite (pseudomorphs after compressed rhombohedra of Siderite)

and the piece is complete on both the top and bottom

which is not often found in well-crystallized display specimens

making it even more enticing

They’re very sharp

On the side of the specimen

antimony sulfosalt and was named for the Hungarian mineral collector Andor von Semsey (1833-1923)

The terminations on the above specimen are very sharp and lustrous