Those crystals don't seem to weight more than 20 triangles each, which is perfectly fine. Even if you put 20 of them in a given scene it's only 400 polygons which is very low.
Good thing we're not working with 'Hammer' level designer.
Looking to move your age from the Story stage into the Concept Art stage? Rich developmental concept art for your age, for the price of a place in your credits. Portfolio | Current clientele vacancies = None
I aways enjoyed working on detailed stuff. The cluster is actually a reproduction of one sitting in front of me......more or less, next Im gonna try to make a Geode. Ill figure this blender out yet