- Benitoite, Joaquinite-(Ce), Natrolite
- Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California
- Thumbnail, 2.5 x 2.0 x 1.5 cm
A fine thumbnail combination specimen from the famous and now-closed Dallas Gem Mine of California. The snow-white natrolite covered matrix is highlighted by a super, well-placed, partially gemmy, benitoite crystal. Immediately adjacent, on a shard of matrix is a 2 mm, rare, yellow-orange joaquinite crystal. Ex. Dick Jones Collection.