Tumbled Turquoise Colored Square Bead Necklace with Coral and Sterling Spacers

Pictured is a Tumbled Turquoise Colored Square Bead Necklace with Coral and Sterling Spacers.  The 16" necklace has a 1" extension so can extend to 17".  The stones are blue cold and with black veins.  Possibly Howlite.  The stones are 21mm x 18mm, red stones are3.8mm.  Strung on wire with sterling clasp and metal.  Signed 925.  Pretty heavy at 88.6 grams.