"quarryhqm", "quarrystone", "quarrysulfur" objects are missing in LustyMap.json so there is no way to translate their names, 'coz if I manualy add them info json file, file will be rewritten on plugin restart and those will be erased.
Only if I add 

                {"quarryhqm", "quarryhqm"},
                {"quarrystone", "quarryhqm"},
                {"quarrysulfur", "quarryhqm"},​

into

lang.RegisterMessages(new Dictionary<string, string>​

section of plugin itself, I'm able to translate names of quarries without losing on reload.