The geode, which is eight metres (26ft) long and crammed full of gypsum prisms, has been put under police guard to prevent souvenir hunters from raiding the extraordinary natural phenomenon.

• 这个晶洞,八米(26英尺)长密密麻麻填满了石膏棱柱,已经在警察守卫之下防止纪念品猎人抢劫破坏这非常奇异的自然现象。