Table 1. Shapes and Color (Cont.) Type of Shot Tower Shape Color and Characteristics 7. Ellipsoidal White opaque, melted bubbly projections, green-black interior. Amber opaque, melted bubbly projections. 8. Teardrop 1. Spheres Smooth perfect glassy spheres as individual particles adhering to soil grains. Sometimes clusters of spheres of transparent material. Black glassy spheres, often magnetic. They appear to have solidified in air. Spheroids, oval in shape, opaque. Spheroidal, dull black, cracked, veined with white crystalline material. 2. Irregulars White irregulars in shape, appearance of coral sand grains. irregulars Rare. Black irregulars. irregulars. Ground Surface Grey Yellow irregulars. 3. Needles Orange needles. 4. Flakes Yellow-orange flakes. 1. Spherical or spheroidal Shape depends upon soil type and device characteristics. All particles composed of transparent and colorless glass. Most of giass contains fragments of mineral grains and air bubbles, Large percentage of particles highly vesicular. Smail percentage dumbbell-shaped, pearshaped, and various modifications of these. 2. Irregular Many particles were flaky. None of the particles hollow. White opaque irregular porous particles. Sometimes these particles are 556