1 Igneous rocks that form too quickly for crystals to form have what is called a glassy texture. 2  Obsidian is the only glassy igneous rock, and can be identified by its dark color. 3  This looks like dark black glass. An example of an intrusive rock is granite. 2  When magma is above the earth's crust, it is known as lava. 3  Extrusive rocks form through very fast cooling of lava above the Earth's surface. 4  Extrusive rocks have very small, almost microscopic crystals.
A bittersweet, mild spice, marjoram is common in German and Polish cooking, where it is an important part of the spice mixture for sausage. It is also found in the popular English dish of roast goose with chestnut stuffing.
In general, three parts of marjoram can replace two parts of oregano in recipes, though this may need some tweaking depending on the specifics of your herbs and the taste youâre going for. Basil. Basil is another herb that can work well, though unlike marjoram it doesnât usually have a similar flavor.