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.
Re: How exactly do snorkels work when you are under the... Or more to the point: Snorkels don't work under water. They work on the surface by allowing the wearer to have his/her face in the water so that one can look at what is going on and the top of the snorkel is several inches above the surface allowing the user to breath through the tube.