How to identify if Silver or Nickel? - 1970 Piso Pagdalaw ng Papa sa Pilipinas Papa Paulo VI Commemorative Coin

Pure Nickel
Magnetic
Edge - Plain
Weight - 23.2 gm
Diameter - 38.2 mm
Thickness - 2.5 mm
Mintage - 70,000
Mint - Sherritt Mint, Canada

90 % Silver, 10% Copper
Non Magnetic
Edge - Reeded
Weight - 26.73 gm
Diameter - 38.1 mm
Thickness - 2.74 mm
Mintage - 30,000
Mint - San Francisco Mint