Based on the assessments above, I believe there are five characteristics a synagogue coin deposit needs to have in order to make it a magico-religious or tithing deposit:
1) The deposit is found in an irretrievable place (mostly under the floor),
2) the coins are found scattered (under the whole surface of the floor, or behind the length of benches, etc.),
3) the number of coins is high (a low number of coins can indicate accidental losses),
4) the coins are low in value (indicating that depositing the coins was foremost a symbolic action),
5) the coins have a long date range (indicating that they had been stored over a long time before their secondary deposition).
Let us now take a look at our catalogue and determine which deposits can be interpreted as magico-religious deposits.