Assertion: mineral's crystal | /r/HasProperty | held by hydrated magnesium
Facets:
value: more loosely
type: DEGREE
value: together
type: MANNER
Source sentences:
text: Vermiculite is a mica-based clay similar to illite, but the crystals of clay are held together more loosely by hydrated magnesium and it will swell, but not as much as does montmorillonite.  
text: is a mica-based clay similar to illite, but the crystals of clay are held together more loosely by hydrated magnesium and it will swell, but not as much as does montmorillonite.