Known types of high explosives used in Bisbee’s underground mines

The following types of dynamite were  identified by finding the empty boxes or the explosive itself underground.

                                                        Dynamite

 

 

Apache powder company (circa  1920’s to closure of mines)

In 1939 Amogel was adapted as the standard Phelps Dodge mines

    L-F (Low freezing) 40% Strength Gelatin  1”1/4 and 1” dia sticks 8” long

    L.F. Special gelatin 1”1/4 x 8” sticks & 1”X 8” sticks

     No. 4 40% Amogel L.F. 1”1/4 x 8” sticks

     No .1 60% Amogel  1”1/4 x 8” sticks (used to detonated Carbamite)

     No. 5 30% Amogel 1”1/4 x 8” sticks

Du Pont (circa 1911)

     Hercules 40% Gelatin no.2     1” 1/8 x 8”

Atlas (circa 1920)

     Atlas Gelatin low Freezing 40% strength    1” 1/8 x 8”

California Powder Works ( used very early)

     No.2 40% N.G. 7/8” dia sticks

Hercules (circa ?)

      Hercules Gelatin L.F. 40 % strength  1”X 8” sticks

Giant Powder Company Consolidated  (circa 1917)

      Giant Gelatin 40% strength 1” 1/8 x 8”sticks

Ammonium  nitrate

Apache powder company

      Carbamite   prilled(  aprox 1/8” beads) ammonium nitrate mixed with organic material.  Came in

      white and pink in color Available  50lb ,20lb and 10 lb bags for underground use.

References

C.E. Mills 1958 Notations from Annual Reports years 1909 through 1950

Richard Graeme IV 2010, pers. comm., 8 February .

Richard Graeme III 2010, pers. comm., 2 February.

graemite@hotmail.com.

© 2013 by Doug Graeme