hollow rocks carpeted by attractive crystals, usually quartz. Their
size is typically a few centimetres.
Therefore, the geologist
Javier Garcia-Guinea could not contain a cry of surprise when he put
his head inside an opening of an old silver mine in Almeria and found a
gigantic geode, covered with large crystals of gypsum of exceptional
transparency. The chamber measured eight meters long, 1.8 wide and 1.7
high, and there might be enough room for ten persons.
"I have searched in the international databases with thousands of
references, and I can not find anything similar to this geode in the
world," said Garcia-Guinea, member of the ‘Consejo Superior de
Investigaciones Cientificas’ (Board of scientific investigations)
(CSIC). He described the camera: "There are half-meter crystal prisms,
on average, covering the entire cavity (floor, ceiling and walls),
which is shaped like a rugby ball and a size far greater than that of
the largest geodes that can be found in some regions of the Earth, such
as Southern Brazil, where the quartz amethyst geodes can have the meter
in diameter and reach high prices. "
l'articolo, in inglese, più o meno recita che è un unico minerale dalle dimensioni che potete vedere dalla foto e che i geologi non credevano ai loro occhi... ci sta dentro un uomo... ci credo, è meraviglioso....
