If you mean the liturgical vestment worn around the shoulders of priests as they administer the sacraments it is called a 'stole'.
The priest wears an alb ( usually white) that goes from neck to toe; over the alb he wears a vestment called a chasuble. If not wearing the chasuble he will wear stole over the alb. The chasuble and stole are the colors of the season.
A deacon wears a stole over the left shoulder to distinguish their role from that of a priest, who wears it around the neck. This manner of wearing the stole reflects the deacon's role as a servant, and symbolizes their readiness to serve others.
For a Catholic marriage, a nuptial Mass is celebrated. The occasion is one of celebration and thus the priest wears white vestments to reflect the spirit of the ceremony. A priest's stole is therefore white.
when the minister/priest already wearing the stole
The traditional robe worn by a priest when not offering Mass or administering the sacraments is the cassock. The clothing he wears during Mass are called vestments.
No, the scarf (Really called a stole) that the priest and deacon wears is a symbol. Long ago, the stole was for rich people and peopel of high class, the priests were elevated to a high class and so were given the stole, that is why we have them.But you don't need a scarf for mass.
The priest normally wears whatever color stole that he already has on for that day, or another sacrament. For instance, he would most usually have a violet stole on as normally he would hear the confession of the person before he anointed him. Conversely, if he is called to the scene of an accident or to a hospital for an emergency anointing, the small stole that priests carry with them is violet. However, if the priest is anointing people, for instance, after Mass, then whatever color stole he had on for that Mass would be what he wore for the Sacrament of Anointing. Anointing itself does not call for a particular color of stole.
That depends on what they're doing. A priest normally wears a cassock or a black suit with clerical collar for his street wear. In church he would normally wear a cassock and a surplice. For some liturgical functions, he wears a stole and cope, for others, just a stole over his cassock and surplice. For Mass, he wears an alb over his cassock, with a stole, maniple, and cincture. Over all of that, he puts on a chasuble. His stole, maniple (if he is wearing one) and chasuble are all the color of the day, or sacrament that he is celebrating.
A stole is the large scarf-like band that a priest drapes over his shoulders when performing ceremonies or Mass; a christening stole is the particular one he would wear when performing a christening.
.Catholic AnswerFor Mass the Bishop wears the same thing that a priest does: alb, stole, cincture, chausable. The only thing different on a Bishop, he would be wearing a pectoral cross, a zuchetto and a miter.
During the sacrament of holy orders, a priest typically wears liturgical vestments such as an alb, a stole, and a chasuble. These vestments symbolize the priest's role as a mediator between God and the faithful community.