Vivianite Hemimorphite the Prehnites can sometimes leave

the Prehnites can sometimes leave unique finger-shaped casts

No real damage (outside of the periphery) to speak of and just beautiful in person

I have no idea when this crystal was mined

but rather an interesting arrangement of tetragonal crystals creating a “tree” shape

so this one is certainly worthwhile for a collector of Bolivian minerals

Vivianite Hemimorphite the Prehnites can sometimes leaveA jewel of a specimen featuring a pristine, GEM quality, very sharp, highly lustrous prism of Vivianite with a rich internal emerald green color associated with minor altered sandstone. One simply does not see Vivianites like this with such excellent morphology and gemminess. Specimen #VIVBOL81806