Magnesium
Mg
atomic number
12
melting point
650°C

1. Heat a small amount of light-colored, infusible mineral powder using a lamp, candle, or Bunsen gas burner, then moisten it with cobalt nitrate solution and reapply the flame; after intense ignition, some magnesium-bearing minerals (i.e. brucite) turn a beautiful pale pink.

2. Heat a small fragment or a bit of powdered mineral sample with a lamp, candle, or Bunsen gas burner, then dab a bit of the heated sample onto a piece of moistened turmeric paper; a weak alkaline reaction will occur.