Analysis of information sources in references of the Wikipedia article "Turkish coffee" in English language version.
Their chauvinism may sometimes take you a little aback. Now that they are quarrelling with the Turks over Cyprus, Turkish coffee has been renamed Greek coffee; […]
If an Ounce be ground, and boil'd in something more than a quart of Water, till it be fully impregnated by the fine Particles of the Coffee, and the rest is grown so ponderous, as it will subside and leave the Liquor clear, and of a reddish Colour, it will make about a Quart of very good Coffee.(NB. That would be 28 g of ground coffee in a litre of water.)
Some supermarkets sell coffee that is pre-ground, marketed as Turkish coffee, and usually robusta.