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Tektites are chunks of glassy material found in a number of locations across the globe. Most are blackish in colour and show signs of exposure to intense heat. The exceptions to this are the beautiful (and rare) green Moldavites from Eastern Europe, the yellowish Libyan glassites, and the green-grey Darwinites.
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Moldavites are often an exquisite emerald green colour, and are frequently used in jewellery making.
There has been much controversy about the genesis of tektites: their appearence and distribution in 'strewn fields' suggests a meteoric origin, but their composition is more consistent with a terrestrial formation.
Geologits generally beleive tektites were created when massive impacts hurled molten surface rocks high into the atmosphere: remelting on re-entry producing the characteristic shape and evidence of ablative heating. Other types mayhave been formed in situ by the extreme energies of a meteoric impact.
However, an increasing number of experts feel that they could in fact suggest an extraterrestial origin. The debate still goes on... |
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Sterling (£) |
USD ($) |
Euro (€) |
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| Small (12mm to 30mm.) |
RS6007 |
£5.95 |
$9.22 |
€7.20 |
Good
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Prices exclude VAT and delivery |