A name used to distinguish it from Odontolite, or Turquoise de nouvelle roche, called also Occidental Turquoise.
References for Turquoise de vieille roche
Reference List:
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 947.