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.
Marjoram is a plant. You probably recognize it as a common cooking spice. But it also has an interesting place in early Greek mythology. As the story goes, the goddess of love, Aphrodite, grew marjoram, and, as a result, marjoram has been used ever since in various love potions. People make medicine from marjoramâs flowers, leaves, and oil. Tea made from the leaves or flowers is used for runny nose and colds in infants and toddlers, dry and irritating coughs, swollen nose and throat, and ear pain.