Igneous rocks which form by the crystallization of magma at a depth within the Earth are called intrusive rocks. Intrusive rocks are characterized by large crystal sizes, their visual appearance shows individual crystals interlocked together to form the rock mass. The cooling of magma deep in the Earth is typically much slower than the cooling process at the surface, so larger crystals can grow. Rocks with visible crystals of roughly the same size are said to have a phaneritic texture.
Ice Sledge Hockey

Sledge hockey (known as sled hockey in the United States) is a sport that was designed to allow participants who have a physical disability to play the game of ice hockey. Ice sledge hockey was invented in the early 1960s in Stockholm, Sweden at a rehabilitation centre. It is currently one of the most popular sports in the Paralympic Games.
There is no classification points system dictating who can be involved in play within Inline Sledge Hockey unlike other team sports such as Wheelchair Basketball and Wheelchair Rugby. Inline Sledge Hockey is being developed to allow everyone, regardless of whether they have a disability or not, to compete up to the World Championship level based solely on talent and ability. This makes Inline Sledge Hockey truly inclusive. Equipment is exactly the same as for inline hockey with the exception of the sledge and an additional stick.

Essentially all of the regular ice hockey rules in able-bodied ice hockey leagues apply to ice