Five hundred pounds buoyant blasting gelatine mines require 450 feet spacing.
"Scientific American Supplement, No. 794, March 21, 1891" by Various
Blasting gelatin also freezes and is sensitive to percussion in this state.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 9" by Various
May contain alkali chlorides and up to 4 per cent blasting gelatine.
"The New Gresham Encyclopedia" by Various