For U.S. Treasuries traded with a Fidelity representative, $19.95 per trade. Fixed income trading requires a Fidelity brokerage account with a minimum opening balance of $2,500. Rates are for U.S. Dollar denominated bonds, additional fees and minimums apply for non-Dollar bond trades.
A group of minerals containing various amounts of the elements Silicon and Oxygen. The Silicates are the largest group of minerals. The construction component of all Silicates is the tetrahedron, which is one Silicon atom equidimensionally placed around four Oxygen atoms.
Native elements are minerals that contain only atoms of one type of element. The elements are not combined with other elements. In nature most elements are combined with other elements to form chemical compounds. So, the native elements mineral group contains a relatively small number of minerals. One mineral contains the elements zinc, carbon, and oxygen. 2  The other mineral contains the elements zinc, silicon, oxygen, and hydrogen. 3  Your friend tells you that the minerals are in the same mineral group.