Diatomaceous earth is produced in California, Nevada, Connecticut, and Maryland, and tripoli and rottenstone in Illinois, Missouri, and Oklahoma; domestic sources are sufficient for all needs, but due to questions of back-haul and cost of rail transportation there has been some importation from England and Germany.
"The Economic Aspect of Geology"
C. K. Leith
Brass lamps may be cleaned with oil and rottenstone every day when trimmed.
"The Book of Household Management"
Mrs. Isabella Beeton
The metallic parts, when white, should be cleaned by a soft brush and plate-powder; the copper and brass parts burnished with rottenstone-powder and oil,-steel with emery-powder; both made into a paste with a little oil.
"The Book of Household Management"
Mrs. Isabella Beeton