The main device (symbol) in the Howart blazon is the saltire. The two main tinctures (colors) are azure and argent.
The bright, strong blue color in Heraldry is known in English as azure, and similarly in other European languages – azul in Spanish, azurro in Italian and azur in French. The word has its roots in the Arabic word lazura, also the source of the name of the precious stone lapis lazuli 1. Despite this, those heralds who liked to associate colours with jewels chose instead to describe blue as Sapphire. According to Wade, the use of this colour symbolises “Loyalty and Truth” 2.
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 3. In a sketch or drawing it is represented by plain, unmarked paper 4.
The saltire is one the major ordinaries, large charges that occupy the whole of the field 5. Arguably one of the best uses of this device is that of the St. Andrews Cross, a white saltire on a blue background found on the Scottish flag. The saltire is obviously closely related to the Cross, and Wade in his work on Heraldic Symbology suggests additionally that it alludes to “Resolution”, whilst Guillim, an even more ancient writer, somewhat fancifully argues that it is awarded to those who have succesfully scaled the walls of towns! 6