Bou Asser deposit, Morocco

The U.S. Bureau of Mines' Minerals Yearbook for 1944 reported that "a deposit of chrysotile is reported at Bou Asser, French Morocco."¹ According to reports received by the Bureau, it produced 116 metric tons in 1942 and 182 tons in 1943.¹ The same yearbook says the fiber was "used locally in the manufacture of building products at Casablanca."¹

The documents report small or short-lived production of asbestos fiber for sale.¹

Output the documents report

Figures as printed, in the units each document uses (short tons before about 1990, metric tons after, in most U.S. chapters). Some are a year's output, some a daily rate or a capacity, some a company's total rather than this mine's alone; the statement for that year below says which.

Year by year

Every statement about this mine in the documents, in each document's own words, by the year it is about.

1942

• Output: “production of 116 metric tons in 1942”, p. 9¹

1943

• Output: “182 tons in 1943”, p. 9¹

1944

• Fiber: “A deposit of chrysotile is reported at Bou Asser, French Morocco”, p. 9¹
• Buyers: “It is used locally in the manufacture of building products at Casablanca”, p. 9¹

References

1. Minerals Yearbook: Asbestos Chapters, 1944 (January 1, 1945), p. 9.