Limestone is used as stone building blocks, Limestone is used in the manufacture of cement.
the awesome josh building was made from limestone in 2003
The Houses of Parliament are made out of Limestone.
Some famous buildings made out of limestone include the Great Pyramid of Giza in Egypt, the White House in Washington D.C., and the Parthenon in Greece. Limestone is a popular building material due to its durability and aesthetic appeal.
limestone
the Empire State Building was made out of granite and Indian limestone. cool huh?
Limestone
St Pauls Cathedral
Most of them were made from limestone often quarried close to the building site to minimise transportation.
cement concrete mortar bricks
If your question is "What do you call someone who uses the products made by industry?", you call him a consumer.
Because the building is made of limestone, and the shells became integral to the limestone as it was being formed, but they don't erode as quickly as the limestone in the rain.
Maybe you are looking for the term "cottage industry".