Prehnite finger cast after AnhydriteAn aesthetic, eye catching miniature sized display specimen of Prehnite after Anhydrite from this famous discovery in 2010. This specimen displays on its own without the aid of a base or clay and is complete all the way around. The piece is slightly rough in areas as it may have been growing against the pocket wall. The piece has a two tone effect that is caused by a deposition of a brownish mineral on the back of the piece. The front of the specimen

It is not a simple twin consisting of two blades

producing giant plates of crystals and individual singles measuring up to 60 cm (

but contains zinc

A bed of milky Quartz and granular sulfides make for a very pleasing matrix

This piece features a beautiful doubly terminated “bow tie”-shaped spray of pleasing green color Ludlamite with good luster

It is a superb quality

This is one of the best pieces of the material that I’ve offered for sale and is a personal favorite of mine due its thick / stout nature

“sword”-shaped prismatic crystal of Vivianite which is associated with beautifully contrasting golden Siderite and Childrenite aggregates

Specimen # BOL711B139

the Vauxite itself is associated with micro fibrous "strands" of the super rare phosphate Metavauxite

and who may or may not have actually existed

A full-sized thumbnail specimen featuring sharp