General physical features of the Fulgurites from
Great Sand Sea, Libyan Desert, Southwestern Egypt
TYPE III (Light colored, fused silica tubes)
MINERALOGICAL RESEARCH COMPANY
General physical features of the Fulgurites from
Great Sand Sea, Libyan Desert, Southwestern Egypt
TYPE III (Light
colored, fused silica tubes)
| OUTSIDE SURFACE: | |
| FORM: | Fairly straight, with a slight curvature down the length on some specimens, nearly equidimensional diameter, tubular. Items A and G are pictured on the preceding page. Each specimen has the tube open on both ends. |
| COLOR: | Light gray-white, to tan. |
| TEXTURE: | Rough, with small protuberances and/or ridges running lengthwise down the tubes. |
| SAND GRANULES: | Very small, colorless/white, very glassy. |
| GLASSY INTERIOR: | |
| COLOR: | Colorless to light smoky gray, transparent. |
| TEXTURE: | Smooth, glassy. |
| BUBBLES (GAS POCKETS) PRESENT: |
Numerous, microscopic. |
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