Although the barbarians were rough, they were very serious and hard-working, and Gu Yi arranged for them to use large vessels to carry out the first "rough digging" of the mud and sand sent by the Mao, skimming off most of the silt and sand and gravel.

Then the fine sand mixed with a high proportion of placer gold is poured into the big ding next to the four white people, and they carry out the second process of "re-tao", and then the third process of the two white people "fine tao" and the last process of the white people's leader "fine tao".

Simple assembly line operation, so that the speed of gold panning more than ten times faster, no one needs to spend a lot of time from the beginning to the end, not big, responsible for the sale of fine pottery, on the first plate of gold place!

When the pin handed the plate of placer gold in a pottery bowl to Gu Yi, Gu Yi couldn't help but feel dizzy when he looked at the fine sand-like placer gold that covered the bottom of the bowl!

"It's got to be a couple of taels, right?"

Gu Yi, who swallowed his saliva, shook the heavy pottery bowl in his hand, and couldn't help muttering to himself.

Niu Sha and Ge Qiao next to him squeezed over curiously, took a look, and Niu Sha, who claimed to have sold meat for the butcher, grabbed the pottery bowl and checked it, and nodded with an expert face: "If you don't count the pottery bowl, there can be four taels and two gongs!"

Gu Yi has figured out that the "1 tael" in this world is almost 630 grams, and the "1 tael" is 31. 5 grams, "four taels and two gongs" is close to three taels, more than 140 grams of gold!

What is this concept?

Under such rudimentary conditions, they harvested more than 140 grams of gold in just a rough trip?

In Gu Yi's impression, how could he remember that in the gold panning documentary he watched, the gold miners could only dig out a few grams of gold for a whole day?

This can only be attributed to the fact that there is probably a super-rich gold mine in the underground river of this isolated [Hollow Valley], and the fact that no one has ever panned for gold on a large scale here, has led to the huge amount of placer gold reserves that have accumulated over the years in the [Hollow River].

Gu Yi looked up at the [Trap River] in his eyes, and burst out with greedy golden light that seemed to be substance, this is a river, this is a flowing gold mine!!

Ge Qiao was also dumbfounded, twisted a small pinch of gold dust with his fingers and rubbed it, and stammered: "How... In the past, the most that those karma people had to do was to send a few pieces of gold gravel in exchange for millet rice, and Tai Bokui and I had to save up for a long time before we had a small bag of gold gravel to collect and exchange things... These grains of sand are also gold and gravel, how can they be so small?"

Gu Yi was stunned: "You mean you haven't done this before, just to pick up some golden beans from the river?"

Ge Qiao shook his head vigorously, before he saw Gu Yi digging ditches and damming back and forth, and thought that he was going to cut off the [Trap River], so as to pick up the gold and gravel at the bottom of the river, who knew that he moved all the guys who were eating, took out the sediment from the bottom of the river and shook it back and forth, and shook so many small gold and gravel in the end, if you want to rely on the people to pick it up, they won't be able to pick it up so much in their lifetime!

Well, I have to admit that Ge Qiao's idea is very strange, he wants to rely on manpower to pick out a grain of gold placer from the bottom of the riverbed several meters deep, how strong is this spirit of finding a needle in a haystack?

Gu Yi thought for a moment, the word "gravel" itself means "small stones, broken stones".

Although I don't know how the people in the world of Lu Dao collect gold ore, it is obvious that none of the well-informed Bai people have heard of this "flotation panning method" type of gold panning.

Therefore, Gu Yi obviously had some misunderstandings, mistakenly thinking that the "gold essence gravel" that Ge Qiao said was the "dust gold" he thought, but obviously, the people in this world world could not separate the fine dust dust from the mud and sand, and it was already a splash of luck to be able to pick up the thumb-sized particles.

Listening to Ge Qiao, the so-called "gold gravel" seems to be quite valuable, much more than the purchasing power of the "gold cake" they used as currency, that is, "copper"!

Gu Yi's eyes flickered and calculated, although he planned to take advantage of the opportunity to leave the [Trap Valley] to go out to buy, but he couldn't do it without any money, since the [Trap River] produced "gold essence" This kind of currency with high value, small size, and easy to carry is produced, he has no reason to run bare, and it has become inevitable to reserve some "running money".

Thinking of this, Gu Yi, who felt that he had hope, was full of energy and led a group of white people, soft servants, and Mao people to launch a vigorous gold rush.

Because he had made up his mind to run away, he felt that this gold panning was a hammer deal, so he simply asked the white people to pull down the entire alluvial area of the placer gold alluvium and the section with a large amount of placer gold.

Although he may not be able to find even one percent of the gold reserves in the [Trap River], he has no intention of scooping up all the gold in this gold river... Even if they were all found, he wouldn't be able to take them all away!

In just a day and a half, they scooped out a large amount of gold placer grains from the riverbed, this terrifying output, if it was placed in Gu Yi's original era, I am afraid that the world would go crazy!

In order to make it easy to carry, Gu Yi also tricked Ge Qiao into stealing a set of utensils similar to a crucible from the old man's fire hole, set up a charcoal fire and began to "alchemy"!

The fuel is the "burning stone" dug out by the people, which is actually natural coal, Gu Yi estimates that it should be some kind of lignite, although natural lignite has low carbon content, poor calorific value, and short combustion time, but he does not plan to make steel, it is more than enough for alchemy.

Even the mold materials used for pouring are ready-made, and when the white people pan for gold, they also dig out a large amount of quartz sand from the mud and sand, but Gu Yi, whose eyes have been occupied by gold, saw this thing, except for picking out some large crystals the size of a fist, which Ge Qiao called "dragon chalcedony jade", and the others were casually poured into a broken pottery urn.

Gu Yi personally selected a batch of delicate quartz sand, mixed some dug black cement as a curing agent, made a gold bar mold that is easy to shape, and used the crucible to melt the placer gold, pouring out a large number of "small yellow croaker" with the length and thickness of the little finger, weighing about 10 grams per root, and the total weight is as high as 1.5 kilograms!

The most surprising thing for Gu Yi was that the little mute actually knew how to do needlework, seeing that Gu Yi was worried about how to pack up a large number of small yellow croakers, he actually broke a thick thorn, and then took out the meridians after cutting some kudzu skin, rubbed them into a piece of kudzu twine, and then sewed a piece of animal skin into a small bag of animal skin!