Struvite (rare - Type Locality)

Item Description

Struvite is a rare hydrated organic phosphate. It is commonly found as a product of organic decay in putrescent matter, canned foods or other bacterial action on organic compounds, and as a constituent of human kidney and bladder stones in alkaline and infected urines. This set of 5 sharply crystallized, partially etched, off-white crystals is from the Type Locality in Germany - the medieval sewer of the St. Nikolai Church in Hamburg. Rarely on the market and rarely in quantity.