1. The rate of cooling definitely affects the size of crystals. The crystals that formed on ice formed much faster, and the crystals seemed much smaller. The crystals that cooled on the lab bench cooled much slower, but they appeared much larger. It was hard to identify individual crystals, but the thin rays extending from the centers were much longer in the sample that cooled on the bench, and much shorter in the sample that cooled on ice.
3. Adding seed crystals does slightly affect the crystallization process. The saturated solution with seed crystals began the crystal formation and finished the crystal formation several seconds before the solution without seed crystals. The seed crystals provide a pla
2. Yes, we have found a potentially valuable mineral. Magnetite can be used for many purposes, including the extraction of iron ore. It is also naturally magnetic, and so can be used for magnetic therapy and in various pieces of machinery. However, the cost of mining it from the ocean floor could be quite high, and so its commercial applications may not be feasible.
The purpose of this lab was to observe the formation and characteristics of several minerals and crystals. In the first part of the lab, we observed the difference between crystals that form slowly in cold temperatures and fast in warm temperatures. We compared the speed that these crystals formed, and the size of the crystals. We then designed an experiment to determine whethe
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