Here is a bit of info on Lazard Cahn: Born in St. Joseph, Missouri on May 23, 1865, the family moved to New York City when he reached school age, and in 1880 he traveled to Stuttgart, Germany for schooling and remained there for several years. In Heidelberg, Germany he studied crystallography under Victor Goldschmidt. Cahn became a passionate student of mineralogy, and an enthusiastic mineral collector with a special interest in crystal morphology.
Cahn began dealing in mineral specimens for pleasure in the mid-1890's, from his offices in New York. In 1896 he was invited to join the Board of Directors of the George L. Cahn is said to have cataloged over 70 species pairs that exist in epitactic overgrowth relationships.
In 1927 Palache named the new species cahnite in his honor, in recognition of Cahn's indefatigable efforts to preserve, study and distribute rare Franklin minerals. 1903; 103 East 19th Street ca. 1905; and 258 West 73rd Street ca. 1910; and his Colorado Springs home (6 North 8th Street)ca. Lazard Cahn died of heart failure on May 22, 1940, a day before his 76th birthday.
Photos and description used with permission from Chris O'Neill whose label also may accompany the specimen. Cahn became a passionate student of mineralogy, and an enthusiastic mineral collector w. The item "Rare Sartorite from Switzerland Ex. Conklin and Lazard Cahn Wow Must See" is in sale since Wednesday, January 2, 2019. This item is in the category "Collectables\Rocks, Fossils & Minerals\Other Rocks & Minerals".The seller is "geoasis" and is located in Springdale, Arkansas. This item can be shipped worldwide.