How Much Astatine is there on the Planet Right Now?

This is a picture of 30 grams, about  ounce, of gummi bears.  This is about the same amount of weight of astatine on the planet at any one moment.  The density of astatine is much higher than that of gummi bears- so if you put all the astatine in a bottle there would be about 4cubic centimeters of astatine according to <http://astatine-at.com/>.  There is more than that here.  Just keep in mind that ...

1 Cubic centimeter = 1.3079x10^-6 cubic yard, 2.83776x10^-5 bushel, 2.7496x10^-5 Br bushel, 3.531445x10^-5 cubic foot, 3.531477x10^-5 Br cubic foot, 2.6417x10^-4 gallon, 2.1997x10^-4 Br gallon, 4.2376x10^-4 board foot, 0.0010567 liquid quart, 8.7988x10^-4 liquid Br quart, 9.0808x10^-4 dry quart, 0.0021134 liquid pint, 0.0018162 dry pint, 0.033814 fluid ounce, 0.035195 fluid Br ounce, 0.061023 cubic inch, 0.27051 fluid dram, 0.38257 fluid Br drachm, 16.231 minims, 16.894 Br minims, 1x10^-6 cubic meter, 9.9997x10^-4 liter, 0.001 cubic decimeter, 0.99997 milliliter, 1000 cubic millimeters.

That's not very much material.

"Astatine is not found in any significant quantity in the geosphere. Some isotopes of astatine (215At, 218At and 219At) are present in uranium and thorium minerals as part of radiodecay series. The total amount present in the Earth's crust is probably less than 30 g at any one time." <http://www.webelements.com/webelements/elements/text/At/geol.html>

"Small amounts of astatine exist in equilibrium with uranium and thorium in the earth's crust, but the total amount of astatine is probably less than 1 oz."
<http://klbproductions.com/yogi/periodic/At.html>