large violet blue mushroom in group of 5. Thick leg with closed cap when young which opens to large flat top. Gills underneath

large violet blue mushroom in group of 5.  Thick leg with closed cap when young which opens to large flat top.  Gills underneath

Observation - large violet blue mushroom in group of 5. Thick leg with closed cap when young which opens to large flat top. Gills underneath. Description: