Color choice doesn't stop at siding though. When adding complementary colors to accent home exteriors, about 62% of American homeowners typically match the trim with their siding color.

Color choice doesn't stop at siding though. When adding complementary colors to accent the exterior of the home, about three in five American homeowners (62%) typically match the trim with their ...

This is the second part in a three-part series on the origin of color in gem materials. This article discusses colors produced by (1) processes that involve multiple atoms (e.g., blue sapphire, ...

A black ribbon represents awareness for all types of skin cancer, but some subtypes use their own colors. There are two types of brain cancer: one originates in the brain and the other has ...

Topics include which gems are commercially important and why, the differences in gem values and shifting supply patterns, and how these factors affect gem prices and availability. The final exam is ...