Re: cement and other minerals

Tim O'Connor

There's an incredible amount of online stuff about mineral production
in the US, including this huge archive

The above page shows that in 1960, 10 states had no cement plants
at all, and most production came from Michigan, Pennsylvania, Texas
and California. The 10 states: Alaska, Nevada, North Dakota, Vermont,
Massachusetts, Rhode Island, Connecticut, New Hampshire, Delaware
and New Jersey.

Asbestos production held steady at about 1,000,000 tons a year in
the 25 years following WWII... I wonder if it was shipped in covered

Tim O'Connor

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