Many yogis know how to make gold from copper. Actually, chemically, copper, tin and mercury, if you mix proportionately, it will be gold.

Gold can be synthesized

image from the magazine Mechanix (Dec, 1932), "Bombarding the Atom for Power and Gold"

The artificial production of gold is the age-old dream of the alchemists. It is possible in particle accelerators or nuclear reactors, although the production cost is currently many times the market price of gold. Since there is only one stable gold isotope, 197Au, nuclear reactions must create this isotope in order to produce usable gold.

Gold synthesis from Mercury

Gold obtained by mining has copper and silver impurities. Gold of higher purity can be made through the photoneutron process:

Mercury 198 + 6.8MeV gamma ray \to 1 neutron + Mercury 197 (half-life 2.7 days \to Gold 197 + 1 positron)

These energy levels allow a more efficient neutron source than the Spallation Neutron Source.

Gold synthesis in an accelerator

Gold synthesis in a particle accelerator is possible in many ways. The Spallation Neutron Source has a liquid mercury target that will be transmuted into gold, platinum, and iridium, which are lower in atomic number.

Gold synthesis in a nuclear reactor

Gold was first synthesized from mercury by neutron bombardment in 1941, but the isotopes of gold produced were all radioactive[3].

Gold can currently be manufactured in a nuclear reactor by irradiation either of platinum or mercury. Since platinum is more expensive than gold, platinum is economically unsuitable as a raw material. Only the mercury isotope 196Hg, which occurs with a frequency of 0.15% in natural mercury, can be converted to gold by neutron capture, and following electron capture-decay into 197Au with slow neutrons. Other mercury isotopes are converted when irradiated with slow neutrons into one another or formed mercury isotopes, which beta decay into thallium. Using fast neutrons, the mercury isotope 198Hg, which composes 9.97% of natural mercury, can be converted by splitting off a neutron and becoming 197Hg, which then disintegrates to stable gold. This reaction, however, possesses a smaller activation cross-section and is feasible only with un-moderated reactors. It is also possible to eject several neutrons with very high energy into the other mercury isotopes in order to form 197Hg. However such high-energy neutrons can be produced only by particle accelerators.

Bell metal treated with mercury produces gold

The next planet below Atala is Vitala, wherein Lord Shiva, who is known as the master of gold mines, lives with his personal associates, the ghosts and similar living entities. Lord Shiva, as the progenitor, engages in sex with Bhavani, the progenitress, to produce living entities, and from the mixture of their vital fluid the river named Hataki is generated. When fire, being made to blaze by the wind, drinks of this river and then sizzles and spits it out, it produces gold called Hataka. The demons who live on that planet with their wives decorate themselves with various ornaments made from that gold, and thus they live there very happily.

PURPORT
It appears that when Bhava and Bhavani, Lord Shiva and his wife, unite sexually, the emulsification of their secretions creates a chemical which when heated by fire can produce gold. It is said that the alchemists of the medieval age tried to prepare gold from base metal, and Srila Sanatana Gosvami also states that when bell metal is treated with mercury, it can produce gold. Srila Sanatana Gosvami mentions this in regard to the initiation of low-class men to turn them into brahmanas. Sanatana Gosvami said:

yatha kañchanatam yati
kamsyam rasa-vidhanatah
tatha diksha-vidhanena
dvijatvam jayate nrinam

"As one can transform kamsya, or bell metal, into gold by treating it with mercury, one can also turn a lowborn man into a brahmana by initiating him properly into Vaishnava activities."

The International Society for Krishna Consciousness is trying to turn mlecchas and yavanas into real brahmanas by properly initiating them and stopping them from engaging in meat-eating, intoxication, illicit sex and gambling. One who stops these four principles of sinful activity and chants the Hare Krishna maha-mantra can certainly become a pure brahmana through the process of bona fide initiation, as suggested by Srila Sanatana Gosvami.

Apart from this, if one takes a hint from this verse and learns how to mix mercury with bell metal by properly heating and melting them, one can get gold very cheaply. The alchemists of the medieval age tried to manufacture gold, but they were unsuccessful, perhaps because they did not follow the right instructions.

Copper, tin and mercury mixed produce gold

There is a chemical process that kamsya, bell metal, can be turned into gold by mixing with proportionately mercury. Now here is a hint of chemistry. If anyone can prepare gold... But it is very difficult to mix mercury. As soon as there is little heat, immediately the mercury's finished. So there is a process. Everything has process. Many yogis know how to make gold from copper. Actually, chemically, copper, tin and mercury, if you mix proportionately, it will be gold. So Sanatana Gosvami gives this example. As the copper and tin, these two metals, mixed with mercury, there can be production of gold, similarly, by proper initiation, by the proper spiritual master, one shudra, even though he's a shudra, less than shudra, varna-sankara, or chandala, he can become dvija, brahmana. So our process is to make dvija. Pañcharatriki vidhi. Pañcharatriki vidhi. That is recommended.