There are 16 ounces in a pound. So half-an-ounce is 1/32nd of a pound.
Nonetheless, that will serve about eight cups of tea (or up to three times that amount if you reuse the leaves) so it's not exactly insignificant.
Besides, with that other tea I mentioned, you aren't going to get a pound of it. According to our price index, a pound of that kind would be a little over $17,000.00