Chinese
Name:北美州玻隕石、黑隕石、黑色玻隕石、玻隕石玻璃
English Name:North American Tektite
Chemical Composition:SiO2
Hardness:5.5
SG:2.34–2.51
RI:1.48 - 1.51
Related Chakra:All chakras, especially
to root chakra (for deep brown to black ones)
Colour:Mostly Brown to black
Remarks:Possibly fromed from
condensed rock vapors after being hit by a meteorite. Scarred
surfaces.
Tektites are formed naturally as a glass and contains much less water in their compositon than other glass.
Tektites are extremely dry glasses
It also melts at a far higher temperature. (~ 950°C - 1500°C).
Melting point of moldavites (tektites) was found to be ~ 1400°C
Melting point of Libyan Desert Glass (tektites) was found to be ~ 1700°C
According to the analysis, the viscosity of tektites was higher than that of ordinary glass in spite of identical SiO2 content. Tektites, as compared with ordinary glasses, has lower alkali content and higher content of alumina (aluminum oxide)
Appearances of tektites: sometimes as irregular blobs and angular fragments, but often they are clearly a splash form of one type or another. These splash forms include, spheres, discs, rods, teardrops dumbbells, and varieties of these with bending and slumping.
Established strewnfields of Tektites on the Earth. |
|
Location Found |
Species |
Colour |
Age |
Year Found |
View Product |
1. |
Europe |
|
|
|
|
|
|
Czech Republic (near the Vltava River) |
Moldavite |
Green |
15 million years |
1878 |
|
2. |
The Australasian |
|
|
0.77–0.78 million years |
|
|
|
Tasmania |
Darwin Glass |
Light to Dark Green to black |
|
1912 |
|
South Australia |
Australites
Edeowie Glass |
Dark brown to Black |
|
1915 |
|
South East Asia |
|
|
|
|
|
Indonesia |
Indochinites |
Dark Grey to Black |
|
|
|
South China
Thailand,
Cambodia,
Philippines,
Vietnam,
Laos |
Indochinites |
Dark brown to Black |
|
1787 |
|
3. |
Libya (Egypt) |
Libyan Desert Glass |
Light Yellow to Green |
over 28 million years |
1932 |
|
4. |
North American |
|
|
34 million years |
|
|
|
Texas, New Jersey, The Gulf of Mexico, the Caribbean |
Bediasites |
Black to dark brown, some with metallic finish |
|
1936 |
|
Georgia |
Georgiaites |
Green |
|
1938 |
|
5. |
East Africa: Ivory Coast
|
Ivory Coast Tektites |
Black |
1 million years |
1934 |
|
|