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Fulgerites Division
Fulgirites (from Latin Fulgur, "lightning") are produced by lightning striking
exposed surfaces. These fulgurites have been found at the feet of sand dunes of
the Great Sand Sea, in the South West of Egypt. Their tubular shapes are
typical of lightning striking sands. On rocks, they may have different shapes.
It has been estimated that each flash releases an average energy of 1 billion
Joules. Air temperatures may reach momentarily 10,000K, even sometimes
30,000K. The peak currents measured range from 10 KA to 100 KA but they last
only a few microseconds. This high energy will melt or vaporize the sands or
rocks with formation of amorphous glass named by A. Lacroix who studied this
phenomenon since 1915: Lechatelierite (after the French mining engineer, Le
Chatellier). Tubular fulgurites are known that exceed 8 metres but their
recovery as a whole is impossible; they are very fragile and are usually found
in pieces of 10-15cm, with diameters ranging from 5-20mm.
Image Code F3834 |
Catalogue No.: F3834
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 285 X 42mm. |
Image Code F3836 |
Catalogue No.: F3836
Description: Fulgurites. Fulgurites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt. 75 pieces.
Size: 39 X 32mm. |
Image Code F3837 |
Catalogue No.: F3837
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 20 X 93mm. |
Image Code F3838 |
Catalogue No.: F3838
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 250 X 31mm. |
Image Code F3839 |
Catalogue No.: F3839
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 109 X 41mm. |
Image Code F3840 |
Catalogue No.: F3840
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 105 X 21mm. |
Image Code F3841 |
Catalogue No.: F3841
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 26 X 117mm. |
Image Code F3842 |
Catalogue No.: F3842
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 99 X 24mm. |
Image Code F3843 |
Catalogue No.: F3843
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 104 X 34mm. |
Image Code F3844 |
Catalogue No.: F3844
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 104 X 33mm. |
Image Code F3845 |
Catalogue No.: F3845
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 96 X 27mm. |
Image Code F3846 |
Catalogue No.: F3846
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 66 X 8mm. |
Image Code F3847 |
Catalogue No.: F3847
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 73 X 18mm. |
Image Code F3848 |
Catalogue No.: F3848
Description: Fulgurites. Fulgirites (from Latin
Fulgur, lightning) are produced by lightning striking exposed surfaces.
These fulgurites were found at the feet of sand dunes of the Great Sand
Sea, in the South West of Egypt.
Size: 30 X 18mm. |
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