- The growth of the crystals of one mineral on the crystal face of another mineral, such that the crystalline substrates of both minerals have the same structural orientation.

E1 - P3 - I1 - T1 - A1 - X8 - Y4 has 19 points in Scrabble!

E1 - P4 - I1 - T1 - A1 - X8 - Y3 has 19 points in Words with Friends!

Found in the OTCWL2014, SOWPODS, ENABLE, and WWF dictionaries