Arsenic is not produced directly. Instead, it's obtained as a byproduct of the mining and processing of other minerals, primarily copper, lead, and gold. Here's a breakdown of the process:

1. Mining: Arsenic-containing minerals are extracted from the earth. Common ores include:

* Arsenopyrite (FeAsS): The most important source of arsenic.

* Realgar (As4S4): Used in the production of arsenic trioxide.

* Orpiment (As2S3): Also used in the production of arsenic trioxide.

2. Roasting: The mined ore is crushed and then roasted in a furnace with air. This process releases arsenic trioxide (As2O3) as a gas.

3. Condensation: The arsenic trioxide gas is collected and condensed into a solid form, which is known as white arsenic.

4. Refining: The white arsenic is then refined to produce pure arsenic. This can be done through various methods:

* Sublimation: Heating the white arsenic to a high temperature and collecting the arsenic vapor.

* Reduction: Heating the white arsenic with carbon to produce elemental arsenic.

* Hydrometallurgical processes: Dissolving the arsenic in a solution and then extracting it using various methods.

Specific examples:

* From arsenopyrite: During copper smelting, arsenopyrite is roasted to release arsenic trioxide, which is then collected and refined.

* From realgar and orpiment: These minerals are roasted to produce arsenic trioxide, which is then refined using sublimation or reduction.

Important Considerations:

* Arsenic production is often associated with environmental concerns due to the potential for arsenic emissions and waste.

* Strict regulations are in place to minimize these risks.

Note: Arsenic production is a complex and specialized process that requires sophisticated equipment and skilled operators. The exact procedures can vary depending on the ore type, available technology, and environmental regulations.