Amethyst on Calcite (reverse scepters) Wavellite and it’s because of twins

and it’s because of twins like this

"sword"-shaped crystals of Vivianite on metamorphosed Sandstone matrix

I feel that we can safely pack and ship the specimen

This is an aesthetic specimen from this classic Bolivian locality

Amethyst on Calcite (reverse scepters) Wavellite and it’s because of twinsThis 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