Hosted on MSN1mon
Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure
Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical ... Rubies are mainly made up of the mineral corundum, which is composed of the elements aluminum and ...
Hosted on MSN2mon
A blue miracle in the Eifel: How sapphires formed in volcanoes
Why this extremely rare variant of corundum is frequently found in this ... They found a portion of these millimeter-sized crystals in rock samples collected from volcanic deposits in the numerous ...
Atlanta Journal-Constitution24d
Why are rubies red? Chemistry.
Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical ... Rubies are mainly made up of the mineral corundum, which is composed of the elements aluminum and ...