14 Vintage Turquoise Cabochons

Description

From my father in law's estate. He taught jewelry making in the 1960-1980s
Rock shop owner told me these pieces are all turquoise. Just don't know what type
The 12 small ones measure approx; 5/8"-3/4" in length, 1/4 width and 1/8 height
the two longer ones measure approx; 1" x 1/4" x 1/8
a couple of the pieces have imperfections - see pictures
I have tried to include any imperfections in the description or pictures.  Please ask any questions before bidding.