Really interesting answer from Draven616... that the Irish for black man is: fearr gorm (literally blue man)... I'm of half Irish & half Italian descent, and there is a common expression for the black people that sounds like Mulin-yon...
One theory is that Vitamin D toxicity can lead to calcium deposits appearing. Vitamin D toxicity is a condition that arises when too much vitamin D is consumed.
Calcium deposits develop most frequently in women between 35 and 65 years of age, but they also develop in men. Here is the arthroscopic view of the calcium deposit in the shoulder located in the rotator cuff, the most common location for it to occur. It can erode the rotator cuff and cause pain and destruction of the rotator cuff tendon.