These crystals are one of the most beautiful phosphates in the world. They are highly prized for their rarity and beauty. This piece features superb, incredibly rare, sharp, sparkling, lustrous, light green crystals of Paravauxite measuring up to 10 mm on matrix. This specimen is from the type locality for the species! Mark Chance Bandy described Paravauxite crystals in his book "Mineralogy of Llallagua, Bolivia." He states that Paravauxite is the most abundant of all the "Vauxites" from this mine." This piece is a great example of the prismatic, sheaf-like parallel growths that Mr. Bandy described.