Hemimorphite – Potosí Mine, Santa Eulalia, Chihuahua, Mexico
 Former collection of Dr. Walter Kühnel via Stollte, 1972
 High-luster, transparent, undamaged hemimorphite crystals on matrix form this aesthetic, historical collection piece from the early 1970s.
 Hemimorphite on limonite from the Potosí Mine, West Camp, Santa Eulalia, Chihuahua, Mexico. Transparent hemimorphite from Santa Eulalia is rather rare, unlike the larger, milky crystals from Mapimi, and usually comes to market from old collections.