From the Catechism:
scborromeo.org/ccc/para/2121.htm
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2121 ***Simony *is defined as the buying or selling of spiritual things. To Simon the magician, who wanted to
buy the spiritual power he saw at work in the apostles, St. Peter responded: "Your silver perish with you,
because you thought you could obtain God’s gift with money!" Peter thus held to the words of Jesus: “You received without pay, give without pay.” It is impossible to appropriate to oneself spiritual goods and behave toward them as their owner or master, for they have their source in God. One can receive them only from him, without payment.
Do you see the difference in your innocent purchase as compared to the example above? Be at peace, there is no sin at all. However, since it was blessed, you do have do treat it respectfully when you dispose of it.
The person who sold it to you probably volunteered the information to save you a trip to the priest to have it blessed, since this is the custom when people buy a medal, crucifix, rosary, and the like. He wanted you to know it had already been done, but again, there would be no problem if you did not know this, and had it blessed a
second time.
Carole
