Five related questions regarding the relics which consecrate Roman Catholic altars?
Generally speaking only one question at a time is permitted on this site. However I can see how these 5 subcategories considered as one possible question.
- Are altars with major relics more consecrated than others? If not, why use a whole leg?
The size of a martyr’s relics are irrelevant as long as the portion of the body in question can be recognized as human, thus geting as they can be distinguished as humaman bone. This is why documents of authenticity are so important.
- Does the relic play a role in transubstantiation?
No, such Masses are considered valid yet illicit. In times of persecution priests have said the words of consecration without any table or altar available whatsoever. Nature always finds a way!
- Is there a stockpile or inventory of body parts kept somewhere awaiting the consecration of new altar?
No, there is no stockpile of relics. However, a priest while in Rome may ask about certain relics and be directed to where on May obtain relics for legitimat reasons.
- In the event that a Roman Catholic Church closes, is the relic recovered? Is it "retired" or returned to "inventory"?
There is no Roman database for such information. If an altar is deconsecrated the relics in the burial chamber are in the possession of the local bishop for future consecration of churches.
- Is there a searchable database listing which relics are associated with each Church? Can we know how large a piece of saint is used or merely the saint's name?
No! There is no known database for such information. In fact Rome is highly douubious of anything electronic!
As said, priests may obtain relics free of charge from a particular Congregession of the Vatican a relics of a saint for any valid saint, even if for personal interest.
Such information is held at the local level of each diocese and is considered of lesser importance as regards to the Local Church.