Eosphorite on Quartz (partially replaced by Feldspar)

Item Description

Some of the best crystallized display specimens of Eosphorite are found in various localities in Brazil. This piece is labeled as coming from Araçuaí, though it could be erroneous, as the validity of the locality is questionable for the species according to the entry on mindat.org. This piece is a lovely example featuring a full coverage of tiny golden-brown Eosphorite crystals which are coating prismatic Quartz crystals, but if you look at the back of the piece, you'll see the Quartz is partially "hollow" as has been replaced by cream colored Feldspar, which not common in my experience with this kind of material from Brazil. The front of the specimen is complete and undamaged. A beautiful old-time example of these well-known specimens from Brazil.
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 ( https://www.mindat.org/photo-326405.html ).