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Paul Niggli

Swiss crystallographer and professor (1888-1953).

Born June 26th, 1888 in Zofingen.

Died January 13th, 1953 at 64 years old in Zürich. [ref]

Occupations
crystallographer, geologist, mineralogist, university teacher
Wikipedia

Our wrinkles are our medals of the passage of life. They are what we have been through and who we want to be. Lauren Hutton