Celestite (SrSO4) is a mineral consisting of strontium sulfate. It is named for its occasional delicate blue color.
It occurs crystallized, also in compact massive and fibrous forms.
... about 1-1.5 inches (25-38 mm) long and opens in the vulva between the clitoris and the vaginal opening.
In the human male, the urethra is about 8 inches (200 mm) long ...