Strontianite pseudomorph after Celestine (rare locality specimen) (ex Al Kidwell Collection)

Item Description

A very rarely seen specimen from the Alverson Mine on Fidalgo Island in Washington. This locality has to be accessed by boat, and was mined for strontium for many years, but specimens haven't been seen on the market in decades. This particular piece was collected in the 1970s. Somewhat bubbly yellow Strontianite have formed pseudomorphs after preexisting Celestine, and if you flip the piece over, you can see a small amount of Celestine still present. These pieces are a must have for any fan of pseudomorphs or odd locality pieces from the United States. We've only had a few of these over the years, so don't miss out on a chance to get this one for your collection. From the worldwide mineral collection of Albert Lewis Kidwell (January 1, 1919 - August 16, 2008). Al was a well-known mineral collector and research geologist with Carter Oil Company and later Exxon Oil Company in Houston, Texas. The phosphate species Kidwellite was named in his honor in 1974.