Can you answer this question?

Join Alexa Answers and help make Alexa smarter. Get started

Science

How is an opal made?


1 Answer

They form by volcanic process in a volcanic rock called rhyolite. Rhyolite is a high silica rock found in explosive volcano which produces a very fluid fast moving lava not like the Hawaiian

{{ relativeTimeResolver(1573255081769) }}

LIVE
Points points 104
Rating 0
Sign-in to view all answers

Similar Questions
Science 1 Answer
Science 2 Answers

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE