The name of this gemstone comes from the Spanish pieda de ijada, "hip stone"; it was thought to cure kidney diseases
Remember that the main reason to [DOC] [TLE] Jade Gemstone | Cheap Jade Gemstones | Buy Jewelry [PAR] The name jade goes back to the time of the Spanish conquest of Central and 
South ... from "piedra de ijada," hip stone, as it was seen as a protection against 
and cure ... Because of its beneficial effect on the kidneys, the stone was also 
known as ... (green and brown) and manganese is thought to produce the violet 
colors.