Calcium dripping out of the walls. Location China → Nanjing Photographer John Hovell Date taken 2011-06-26 Comments Calcium carbonate - known around here as caleche - is the top couple inches of "soil" or what desert plants grown in. It supposedly leeched onto the soil from the surrounding hills eroding. — Margaret Hovell 2011-07-26
Comments
Calcium carbonate - known around here as caleche - is the top couple inches of "soil" or what desert plants grown in. It supposedly leeched onto the soil from the surrounding hills eroding.
— Margaret Hovell