Prehnite (unusual, elongated crystals)

Item Description

A superb crystallized prehnite is actually a thing of rarity, for sharp crystals: This large example of unusual elongated crystals has unusually snow white, tapering crystals, to 3.3 cm in length, of lustrous and translucent prehnite seem to float on a thin septa of matrix. Prehnite in truly well formed crystals, like this, is far less common than botryoidal or reniform specimens. The Jeffrey Mine in its heyday produced many prehnites, in several different crystal habits. To my mind, they among the best for the species, and quite another thing from the usual more rounded styles from other localities. This piece, however, with its color and unusually robust crystals is unusual even for Jeffrey (which is now closed, anyhow). I am a big fan of these unusual examples, so well-crystallized, of a species which generally is not so well-formed. Old material, probably from the 1980s finds here. Valued highly by collectors of the location, these are hard to find on the market.