Sulfur (Native) With Petroleum
Small Cabinet, 6.6 x 5.0 x 4.3 cm
Cozzodisi Mine, Sicily, Italy
Ex. Dr. Edward David; John Calvert

This complete-all-around specimen of lemon-yellow sulfur crystals is from one of the classic locales, and hard to obtain today. Note the nice old label from the collection of Lord Calvert! You can see more information on him here