Chapter 578: Pretty interesting (1/2)

Chapter 578: Pretty interesting

Translator: Nyoi-Bo Studio Editor: Nyoi-Bo Studio

Li Du helped Alicia get up and asked in a puzzled tone, ”Gemstone pit? What's that?”

Brendan was just about to open his rily said, ”Are you trying to get us killed? Why did you let go of the handle?”

Although he had taken a beating, Brendan was not angry at all He and his cousin Stephen were very much alike in this aspect They had the characteristic of a yes-ry wife, he forced a se left if we are late”

”Geemstones?”

Li Du shook his head ”Yes and no An ”opal gemstone pit” refers to an area with a lot of boulder opals”

All natural emstones were derived from silicon dioxide The reason for the formation of opals could be found approxiions where there were extreh temperatures, due to a volcanic eruption or the ih temperatures then melted the rocks into pure silicon dioxide

The silicon dioxide, which was round and empty mineral areas, where they were deposited

Generally speaking, such depositions were only effective at around 400 feet deep from the earth's surface Approximately every five million years, deposited sedi the silicon dioxide to slowly coagulate together

Within the one to two million year period after that phase, the deposited sedied Opals and the deposited sedi period of time, only a part of the silicon dioxide was solidified

While the silicon dioxide solidified, so rocks and possibly fuse with the rocks or dust

Under such conditions, boulder opals were forether with rocks to for up, they referred to the rocks that encased an opal and also rocks with opals embedded in them

Of course, there were also many other reasons for opals to have such beautiful shapes and patterns The reasons involved a very coed to coained the knowledge of both gemstone pits and boulder opals while he learned the infor their formation

The conditions for the formation of boulder opal were different to those of pure opal Nearly all of the liquid silicon dioxide ca and solidifying process

However, only a part of it formed boulder opals, while most of it still formed pure opals A complex physical process was also involved in this

It was during the physical process that the difference between boulder opal and pure opal eed Pure opals were usually found alone, whereas boulder opals were found in large quantities

Cohtly lower as it was usually fused together with soly, it was not worth a single cent

However, with the advancey, the value of boulder opal had increased

So away the external layer of rock fro the opal inside There were also machines that could sculpt the layer of rock into valuable patterns

With the two methods, the value of a boulder opal could increase by ten fold This was especially so for the latter method, as opals theht therind theinal states

But, it was different when there was a layer of rock as the rock was not valuable and so could be sculpted at will