1. 
   Wacke
   Wacke is a soft, earthy, dark-coloured rock or clay derived from the alteration of basalt.
   Found op http://www.probertencyclopaedia.com/browse/HW.HTM
   
   
2. 
   Wacke
   A sandstone with 15 - 74% mud matrix per volume
   Found op http://www.quartznall.co.uk/azhealthguide.htm
   
   
3. 
   Wacke
   • (n.) Alt. of Wacky
   Found op http://thinkexist.com/dictionary/meaning/wacke/
   
   
4. 
   wacke
   sedimentary rock composed of sand-sized grains (0.063–2 mm [0.0025–0.078 inch]) with a fine-grained clay matrix. The sand-sized grains are frequently ... [4 related articles]
   Found op http://www.britannica.com/eb/a-z/w/1
   
   
5. 
   wacke
   1) A sandstone with 15
   Found op 74% mud matrix per volume
   
   

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