Tourmaline var. Schorl (Sinkankis & Robertson Coll.)

Item Description

Rich, uncommon and exceptional large older schorl from Santa Cruz, Mexico. A centrally placed, 3.5 cm sharply terminated, crystal dominates the rich intergrown cluster of lustrous, striated, jet-black crystals. Ex Kay Robertson Collection # 3309 and acquired from California dealers, the Shipleys, at the Indio Show in the mid-1960s. Formerly in the collection of John Sinkankas. John was a renowned author, artist, mineralogist, bibliophile, bookseller, field collector, lapidarist and gemologist, who died in 2002. See his biography in the Mineralogical Record Biographical Archive: http://www.minrec.org/labels.asp?colid=1837. Specimens of this size and quality are rare from here and this one has a very fine provenance! Valued?! We do not know - never seen such a piece for sale!