Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

What makes a ruby?


Rubies are made from the mineral corundum or aluminum oxide. When rubies are treated to extreme heat and pressure, they are formed under the earth's surface.

{{ relativeTimeResolver(1632919631106) }}

LIVE
Points points 61
Rating

Similar Questions
Sign in to view all similar questions
Science 1 Answer
Science 1 Answer

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE