[Suicide Junkie]

If you were firing those beams from maximum range, and the damage per shot ended up being less than half the crystalline ability, and less than the hitpoints of a single armor component, then the crystalline can negate the entire amount.

Solutions:
1) Move a bit closer - do more damage per shot than the components can handle.
2) Use a larger mount - same as above.
3) Use any special damage type weapon. Shield skipping, armor skipping, X - only; crystalline has no effect on these. Quad to Shields will cut through the crystalline effect very efficiently.