pope's is white, cardinals' are red, and bishops' are violet
all ordained members (priests) of the Catholic Church are entitled (able, but not required) to wear a black zucchetto
Crosier
hooked staff (looks like a shepherd's crook) carried mainly by bishops, but also by the pope
pope's staff is not hooked but instead depicts the crucified Christ (this staff is called the Papal ferula)
Alb
a simple white robe worn by members of the clergy (priests, deacons, etc.) that covers the clothes
Chasuble
an outer garment worn over the alb by priests
poncho-like
there are different colors for different seasons of the Church year (ex. white/gold for Christmas and Easter, green during Ordinary Time, and purple/violet for Advent and Lent)
Stole
a scarf-like piece of cloth worn as a sign of priesthood
priests wear it straight down
deacons wear it across the chest (like a sash)
Mass Parts
Chalice holds the wine
Paten holds the large host
Cruets hold the wine and water
Ciborium holds the small hosts
Purificator a cloth used to wipe the chalice
Finger Towel a small cloth used to wipe fingers
Corporal a square cloth that the chalice and paten are placed on top of
Pall a firm cloth square that sits on top of the chalice
Altar where the sacrifice of the mass takes place
Sacrarium special sink that drains directly into the ground