Energized by exploring the characteristics of obsidian, Francisco Sotomayor combines artistry with technology to sculpt 12 pieces with images in each. Driven by curiosity, the sculptor embarked on ...

So, he was the inspiration for this sculpture because of his brilliance.” In “The Eye of Tesla,” his 10th obsidian piece, Sotomayor continues his focus on sculpting variations of the eye.

But the auction’s star lot was a jeweled obsidian model of a dust-bathing sparrow, carved in the style of netsuke master Horaku. The sculpture was the subject of a 10-minute bidding war ...