The brooch is made of nickel silver with pearl and amethyst.
"....The most amazing thing is that in all the ancient cultures, pearl - it is the image of the human soul, illuminated by the divine spirit, or the connection of two "elements": Water and Fire. The first symbolizes earth's soul, and the second - the heavenly spirit. Pearl in the shell - a soul encased in the body....."
"Amethyst symbolizes sincerity and peacefulness. It gives people insight extinguishes mental anguish, anxiety, fills the aura of good intentions, helps to control evil thoughts." (C)
See more Brooch http://etsy.me/2w2qiqb