Note 2771 — BOOK XXXVI. THE NATURAL HISTORY OF STONES. (continued 2)
John Bostock translation
From φεγγὸς, “brightness.” Beckmann is of opinion that this was a calcareous or gypseous spar (Hist. Inv. Vol. II. p. 66); but Ajasson seems to think that it was very similar to Parian marble, which was sometimes called by this name.