Miniature, 4.0 x 2.0 x 1.5 cm
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

Exceptionally large, fine, and gemmy benitoite crystals, mined in the 1980s by Bill Forrest. The specimen is 4 cm along the diagonal front, or longest, edge top to bottom. It is 2.5 cm across if measured lengthwise at longest.