Besides nearly perfect spheres they occur in the whole spectrum of flatten and elongated round forms. The dumbbells as the name implies have knobs at each end connected by a middle which is thinner. The rod forms are similar to the dumbbells in size but have neither the thick knobs or the thinner middle they are just rods with usually rounded ends. Some of these forms will show a slight ridge on occasion indicating ablation, but the Australites are the real aerodynamic shaped tektites. In their case ablation has done much to give them their form.
Australite buttons have a hemispherical side often showing a spiraling raised line.
The flange of Australite buttons is a ring of material around the original core that builds up but does not completely weld itself to the original mass. On occasion the entire forward facing side and flange will detach leaving a distinctive core. These flangless cores are found also. Australites come in elongated forms as well as round. Tektites come in many sizes however, complete splashform types fall in the range of from one inch to four inches.