Benitoite, Neptunite

Specimen ID: K7F-7LV

Benitoite : BaTi(Si3O9)
Neptunite : Na2KLiFe2+2Ti2Si8O24
As recorded:
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Mindat locality:
53mm x 41mm x 22mm
Real nice combo specimen with white Natrolite hosting several cornflower-blue Benitoite crystals to 20 mm, including a few very sharp, gemmy crystals with rich color. The largest crystal seems to consist of two Benitoites which intergrew, and is incompletely formed at the specimen's edge. Several lustrous black Neptunite crystals to 13 mm long, some doubly terminated, accent the Benitoites. This is a choice specimen.
Previous data
Name withheld

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4,992,012 minIDs have been issued as of 5th Apr 2020 3:40 pm BST