As an American reading British Royal Navy history, I will admit to being initially confused, more than once, by “stone frigates“, naval establishments on land named as ships. HMS Collingwood, for example, is a stone frigate (shore establishment) of the Royal Navy, in Fareham, England. It is the lead establishment of the Maritime Warfare School.
Recently, I came across the history of the first “stone frigate,” HMS Diamond Rock of 1803. Diamond Rock is a 175-meter-high (574 ft) uninhabited basalt island located 3 kilometers from Pointe Diamant on the Caribbean island of Martinique. The rock gets its name from the reflections that its sides cast at certain hours of the day, which evoke images of a precious stone.