Montana sapphires occur at three commercial secondary deposits: Rock Creek, Dry Cottonwood Creek and the Missouri River area. These rough and faceted Rock Creek stones show the range of permanent colors after routine heat treatment.
We love to decorate our homes with plants, but we're rarely aware of the plants--and plant parts--that could be poisonous to pets and children.: 199 Poisonous Plants to Keep Away from Humans, Dogs & Cats
Fordite: an anthropocenic mineral "formed from the built up of layers of enamel paint slag on tracks and skids on which cars were hand spray-painted (a now automated process), which have been baked numerous times.