Yes.
Yes, some gem stones are made to make jewelry. but not all.
Yes...
yes
Topaz is used to make jewelry mainly!
metomorphic
Silver is commonly used to make jewelry and tarnishes over time due to exposure to air and humidity.
Eighty percent of gold mined in the world is is used to make jewellery
gold is mostly used
Peridots are used to make gorgeous jewelry.
gold, silver
make
It is used to make jewelry.