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.
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.
.Catholic AnswerWhen a deacon comes into the Church to be ordained he is laying on the floor during the Litany of the Saints wearing a stole crossed over his shoulder and an alb. After he is ordained he puts on a priest's stole and a chasuble over it.
Yes, if not celebratingin a church with others present; however, a white stole can be worn anytime if necessary as it is the universal color