likro'i lujvo

x1=r1=l1 is a quantity of lava/magma [liquid rock] of composition including x2=r2=l2 from location x3=r3 under conditions x4=l3.

No distinction on whether it has erupted yet.

In notes:

likrokro'i
x1 is a quantity of igneous rock of type/composition x2 from location x3