The Hallowed Storage Unit is an upgraded Storage Unit. As such, it serves as a container for a storage system, however, its content cannot be seen directly: instead, all the content from all connected Storage Units are seen together in the storage system's Storage Heart, a connected Storage Access, or a Remote Storage Access. Items are still technically stored in the Hallowed Storage Unit, however, and the unit is therefore protected from mining as long as it contains items. A Storage Unit Wand can be used to deactivate a Hallowed Storage Unit, allowing to empty it and then mine it, for example in order to upgrade it to the next tier, Blue Chlorophyte Storage Unit.
Storage Unit. As such, it serves as a container for a storage system, however, its content cannot be seen directly: instead, all the content from all connected Storage Units are seen together in the storage system's 
Storage Heart, a connected 
Storage Access, or a 
Remote Storage Access. Items are still technically stored in the Hallowed Storage Unit, however, and the unit is therefore protected from mining as long as it contains items. A 
Storage Unit Wand can be used to deactivate a Hallowed Storage Unit, allowing to empty it and then mine it, for example in order to upgrade it to the next tier, 
Blue Chlorophyte Storage Unit.
Crimtane / 
Demonite
Hellstone
Hallowed
Luminite
Terra
