[Covenantor]

...the reason we no longer make building from stone so much is Silicosis.

Well, actually no. Stone is a bit more expensive as a building cladding in which the preponderance of dust is produced at stone quarries and fabricator sites. Concrete mixes use and produce vastly larger quantities of silica dust from sand and stone aggregates. Thanks to medical research we've learned to mitigate exposure levels.

[wastoute]

Thanks.