58 mm Manganoan "sandwich" Calcite from Fujian
Liancheng Mn deposit, Longyan, Fujian, China
Size: 23x58x52 mm (45,9 gr)
Fantastic Manganoan "sandwich" Calcite
These crystals are from a new find in 2021. The crystals are prismatic crystals of Calcite with hexagonal shapes and marked zones. And because of their look, they are known as Sandwich Calcites.
Manganoan is a variety of calcite rich in manganese, which gives the mineral a pink color. The pink color is barely visible, in the center between the two zones of white calcite.
The crystals have a great contrast to the grey limestone matrix.
Under long-wave UV light, these calcites are highly fluorescent with a beautiful rich orange glow.
These crystals are fantastic, and the 2 biggest crystals are 19 mm.