opal

types of opals

• there are four types of opal
• one is a fire opal
• two is a milky opal
• three is a white opal
• and there are two types of black opal.

OPAL IS

• a type of mineral
• it's formed in volcanic rock.
• it's mined a lot in Australia

WHAT opals name comes from

• opals name comes from a
• sanskrit word upala meaning
• precious stone.

what opal is used for?

• opal is used for jewelry
• it is used for a October brith stone