Alchemy in Catholicism and Mother Mary

--Informant Info--
Nationality: United States
Age: 71
Occupation: Retired
Residence: Phoenix
Date of Performance/Collection: 2/13/2020
Primary Language: English
Other Language(s):

This conversation was held between the informant and myself. The informant shall be named GG and I will be MH. 

GG: So in catholicism there is a belief that if Our Mother [Mother Mary] blesses you, or God, your rosary bead chain will go from silver to gold. And in Medjugorje, in the Herzegovina area of Bosnia and Herzegovina, there is a hill where it is believed Mary will visit and deliver messages to a family that lives at the base of the hill and that those who pray there will have their prayers heard and where there are multiple accounts of the silver rosary chains turning gold. 

MH: When you went did your rosary beads change from silver to gold? 

GG: I wouldn’t know as mine had already turned gold long before I went there. 

MH: Wait, what?! 

GG: Yes. When Jennifer [the informant’s youngest daughter] died, she had this rosary on her. It was gifted to her by myself at Grace’s[the informant’s mother-in-law who is long passed] funeral because Jennifer had forgotten hers at home so I gave her the beads I had on me. After I received the phone call from the police that she had been brought to the hospital dead I went to go retrieve her belongings they had pulled from the crash. When I found the rosary in the bag of things, I saw it had turned gold. And in the worst moment of any parent’s life, there was this tiny moment where I knew Jennifer was with Grace in heaven and that it would be ok. 

Background: 

The informant is my grandmother, she is Italian Catholic and deeply spiritual. She was raised by only ever going to Catholic school and lives her daily life with religion and spirituality and God always in mind. She went to Medjugorje in 2018 on a pilgrimage to meet this woman who is believed to speak directly to Mary. 

Context: 

My grandmother and I were having a conversation about the paranormal in religion and how much of a role it plays in the modern world. It was a casual conversation over a glass of wine at her house. 

My thoughts: 

I don’t know where I stand in the belief of alchemy, silver turning to gold. But the fact that she experienced this phenomenon is intriguing to me. There are possibilities of debunking the myth such as many silver chains are actually made of brass and coated in silver so eventually the silver will wear off and leave a gold-ish brass, a person could also take the newly formed gold chain to the jeweler and have them inspect the quality of the gold to see if it is real. But there is also no way to say these paranormal and spiritual events aren’t real.