- Vivianite, Childrenite
- Miniature, 4.7 x 2.5 x 2.0 cm
- Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosi Department, Bolivia
- Ex. Martin Lewadny
A lustrous, sharp, teal-green vivianite blade aesthetically set on matrix covered with tiny childrenite crystals from the famous Siglo XX Mine of Brazil. Choice material from the Marty Lewadny Collection of Winnipeg, Canada.