The primitive technology guy made lime mortar from the shells of rainforest snails

[cannibalpeas]

@frauenfelder

It was the primary mortar until Portland cement was introduced in the 19th century.

Rosendale Cement was on the scene about 30 years earlier than Portland and far more durable. Of course, I have a prejudice as I live in the shadow of the kilns and mines that produced it.

History – Century House Historical Society