Quintinite-2H - Sold
- Jacupiranga carbonatite
- São Paolo
- 3.6 by 3.2 by 2.0 cm – Thumbnail specimen (fits into a 3 cm cube)
Quintinite is a carbonate hyroxide mineral with a layer structure. While originally sold as manasseite, detailed study showed that these crystals are polytypes of hydrotalcite, now renamed quintinite (Chao et al. (1997). The name honors micromineral collector and author of the "Complete Book of Micromounting" Quintin Wight. This specimen shows orange blocky crystals to 3 mm on a matrix of magnetite and carbonates. This specimen was part of the personal collection of Ralph Merrill, proprietor of the prolific mail order business Minerals Unlimited. Ralph Merrill obtained this specimen from Al McGuinness.