Radioactive isotope analysis &/or other measurements & calculations on the crystal itself or on its source formation.
Crystal is 13 years old and i'm in love with her! :)
Crystal Originated in the 19th century.
Take your crystal to a local jeweler who can use a probe to help you determine whether or not your crystal is a diamond.
Crystal Bowersox is 28 years old (birthdate: August 4, 1985).
Crystal Lowe is 36 years old (birthdate: January 20, 1981).
Crystal Chappell is 46 years old (birthdate: August 4, 1965).
Crystal Bernard is 49 years old (birthdate: September 30, 1961).
Crystal Cox is 32 years old (birthdate: March 28, 1979).
Crystal Kay is 25 years old (birthdate: February 26, 1986).
Crystal Reed is 32 years old (birthdate February 6, 1985).
Easly
Crystal Harris (Hefner) is 28 years old (birthdate April 29, 1986).