MINERALOGICAL RESEARCH COMPANY
General physical features of the Fulgurites from
Great Sand Sea, Libyan Desert, Southwestern Egypt
TYPE III (Light colored, fused silica tubes)
|FORM:||Fairly straight, with a slight curvature down the length on some specimens. Nearly equidimensional to slightly flattened in cross section, tubular, usually with very pronounced, often convoluted ridges. Each specimen has the tube open on both ends.|
|COLOR:||Light tan to smoky gray.|
|TEXTURE:||Rough, with small protuberances and/or ridges running lengthwise down the tubes.|
Modest amount, sometimes practically nonexistent, i.e., the sand granules were mostly fused during formation.
|COLOR:||Light tan to light smoky gray, translucent / opaque.|
Copyright 1998-2017 by Mineralogical Research Co.
All rights reserved.