Holmium(III) oxide, also known as holmium oxide, is made by reacting holmium with oxygen. Holmium oxide is well known for its use in powerful paramagnetic substances with dysprosium(III) oxide (Dy 2 O 3). It is similar to erbium oxide. Special methods are necessary to separate these components.
Other Aruba Snorkeling Locations. While we believe the sites described above are the best Aruba snorkeling beaches and spots, here are a few others that might be good for you. De Palm Island/Slope-This is a barrier island destination fun park south of town, but north of Mangel Halto.
You have the choice between an open tube, semi-dry snorkel or dry snorkel. Which type of these scuba diving snorkels is best for you is personal preference. If you consistently swim in rough water, you will probably want to opt for at least a semi-dry snorkel. That way you won't be gulping large amounts of water.