This kind of religious practices is not permitted in Biblical Christianity. Therefore Catholicism should not be mistaken as Christianity.
True Christianity can never be defined by mans claim of “holiness”, and religious practices. Only the scriptures define the true faith. The Bible alone is the highest authority in matters of the Christian faith.
When Roman Catholicism is branded as “Christianity”, hundreds of millions of people get a wrong impression about God of the Bible. They simply do not want to have anything to do with what they sense is a corrupted religion with priests who are indulged in the affairs of the with what they sense is a corrupted religion with priests who are indulged in the affairs of the World.
http://ivarfjeld.com/2013/04/12/new-book-on-worship-of-skulls-and-bones/