sour - stab
- sour gas
- source rocks
- space
- space factor
- spacing
- spacing of holes
- spading
- spalling
- spalling hammer
- span
- span length
- span rope
- spangolite
- spanner
- spar
- spare unit
- sparking
- spartalite
- spathic iron
- spear
- special
- special dynamite
- special shaft sinking methods
- special steel
- specific
- specific charge
- specific gravity
- specific gravity bottle
- specific gravity curve
- specific gravity separation
- specific resistance
- specific viscosity
- specific volume
- specific weight
- specification
- specimen
- specimen of ore
- spectrograph
- spectrometer
- spectroscope
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