This sculptural marcasite crystal from Guangxi, China was formerly in Dr. Stephen Smale’s collection. A world-class mathematician (receiving the Field’s Medal in 1966,) ⁣Dr. Smale lived in Hong Kong for many years and had early access to much of the best material that emerged from China. Check out his “Virtual Museum” with photos and details on his collection http://www6.cityu.edu.hk/chinese-minerals/ ⁣ ⁣ Send us a DM for more info or with specific shopping requests! | The Arkenstone Gallery of