If the granite had suddenly appeared in less than three minutes, while the rest of the world was molten rock, then the granite would have melted. It is, indeed, an astounding discovery. There are several types of rocks, but we will especially give our attention to granite. It is a hard crystalline rock which tends to be light colored. With crystals large enough to be seen, granite is an attractive mixture of very light quartz and feldspar crystals, along with some darker crystals which are usually mica and hornblende.
Granite is very solid and hard because it tends to have no cracks or seams.
Unlike most other rocks, granite can support great weight because it does not easily crack. Rhyolite is chemically similar to granite, but has much smaller crystals. More on granite. Granite is original and underived. A key factor is that granite, when melted and rehardened, changes into rhyolite.