6 Varieties of Minerals and Metals Discovered in Your Mobile Device
Our mobile phones are utilized on a daily basis, yet have you ever wondered about the various minerals and metals present within them?
In today's world, mobile phones are everywhere. Each person owns and constantly uses one. However, have you ever considered the components that make up a cell phone, particularly the valuable minerals, and metals involved? Mobile phones consist of numerous scarce materials, which are typically extracted from various countries globally. Thus, what exactly is inside your mobile phone? Here are the metals and minerals that accompany you daily.
Copper, one of the earliest metals extracted by humans, has been in use for over millennia. Exhibiting a reddish-brown hue and greater malleability than other metals, copper is employed in phone circuitry due to its excellent electrical conductivity. In fact, it is the most crucial component in a phone's electronics as it forms the connectors and wires. The majority of copper is sourced from porphyry copper deposits within the Earth's crust's massive molten rock sections. Chile holds the title of the leading global copper producer, accounting for 28 percent of the valuable metal's mining.
Lithium, a soft and lightweight metal, provides energy for mobile phones. It is a key component in rechargeable lithium-ion batteries, contributing to their power, density, faster charging, and extended lifespan. Rather than being found in its elemental form, lithium is obtained from lithium-bearing rocks and lithium chloride salts. Chile, similar to its copper production, leads the world in lithium output, primarily sourcing it from the Atacama Salt Flat. Argentina follows as the second-largest global lithium producer.
Silica, an element present in quartz, is utilized in creating the chips and microprocessors found in mobile phones. Additionally, silica is a component of the Earth's crust. The specific silica variant employed in manufacturing mobile phone chips consists of extremely purified and intrinsically fragile silicon dioxide particles. Significant silica sand deposits can be discovered in locations such as Queensland, Australia, and the Mid-Atlantic regions of the United States, including North Carolina and Virginia.
Germanium is employed in the creation of semiconductors for mobile phones. This fragile, silvery-white element is frequently utilized in numerous electronic gadgets. This uncommon mineral can be discovered in germanite and argyrodite rock formations, as well as in zinc deposits. Although the U.S. possesses germanite, the country still depends significantly on China, which generates over 70% of the mineral in areas such as Yunnan Province. Additionally, Inner Mongolia is recognized for its production of minerals.
Bauxite serves as the primary source of the mineral gallium, which is utilized in the creation of LED backlighting, enabling our phones to emit bright light during nighttime. The majority of the planet's bauxite can be found in tropical and subtropical areas, with the largest "blanket deposits" located in regions such as West Africa, South America, Australia, and India. Australia holds the title of the world's largest producer of this mineral. The extraction of this material from surface and underground deposits results in the production of the mineral gallium as a byproduct.
Potassium is derived from a component known as orthoclase, which is utilized in the production of touch screens for mobile phones. This element is obtained from a potassium salt, sylvite, which is primarily located in countries such as Canada, Russia, and Belarus. To enhance their toughness and withstand everyday wear and tear, cell phone screens undergo a final treatment with potassium salts.
A selection of the numerous valuable minerals and metals that go into manufacturing our daily-use cell phones is presented here. Regardless of the production location, manufacturers rely on resources from a minimum of twelve nations to ensure your device has a bright display, conducts electric current, retains power, captures audio, snaps photos, and performs countless other tasks we often overlook.
Girish Linganna
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Delhi horror: IRS officer's daughter raped, murdered by former househelp
New Delhi (PTI): A 22-year-old IIT graduate and daughter of a senior Indian Revenue Service (IRS) officer was allegedly raped and murdered at her residence by their former househelp in southeast Delhi's upscale Kailash Hills locality on Wednesday morning, hours after he sexually assaulted another woman in Rajasthan's Alwar.
Rahul Meena, the 19-year-old domestic help who had worked with the family for around eight months and was sacked around a month ago, has been arrested for the crime, police said this evening.
The woman, who was preparing for the Union Public Service Commission (UPSC) examination, was alone in her house at the time of the incident and was found murdered in a room by her family members when they returned from the gym, they said.
Preliminary inquiry suggests the woman was sexually assaulted before being strangled to death using a mobile phone charger cable, the police said, adding they are waiting for the postmortem report for confirmation of sexual assault.
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The police also said they have detained two persons -- a car cleaner in the area, and a househelp in the neighbourhood -- for questioning.
A senior police officer said that the victim's parents would lock the house in the morning and leave the keys outside for their domestic help.
Meena was aware of the location of the keys and allegedly used them to enter the house on Wednesday. The accused was familiar with the household, including its layout and the daily routine of the family members.
He knew when the victim's parents would step out for their walk or gym sessions.
Meena, a native of Rajasthan, had been removed from his job around a month ago for alleged misappropriation of daily purchase bills, the officer said after preliminary investigation.
An official said that the victim was alone at the residence at the time of the incident, adding that the accused entered the house around 6 am, attacked the woman and sexually assaulted her. She was allegedly hit with a stick, inflicting significant blunt force trauma on her face and head.
Subsequently, the attacker strangled her using a mobile charging cable before fleeing the spot. The police also said there is no information about the verification of the accused when he was hired.
The sources said the victim put up a strong resistance, following which the accused struck her on the head with a stick to overpower her before strangling her with a charging cable.
The police suspect the crime was committed between 6 am and 7 am, a time likely chosen as two other domestic workers usually arrive later in the day.
A police source said that after the incident, the family members immediately checked CCTV footage and saw Meena entering their building and going to the third floor of the house belonging to the victim.
The family has already handed over the entire CCTV footage to the police.
The police said the suspect was also seen on a nearby street camera carrying a backpack.
They said Meena is also wanted in a sexual assault case in Rajasthan's Alwar.
"A case against the accused was registered on Wednesday. He committed the offence on April 21 with a woman in Rajgarh and fled from Alwar, around 170 km from here, to Delhi.
"An FIR has been registered at the Rajgarh Police Station against him. We are in contact with the Delhi Police, and a team of the Delhi Police has also visited here to question his family members," an officer in Alwar told PTI.
The police earlier said Meena, who was seen outside the house even a few days ago, was missing since the incident, and a manhunt has been launched to trace and apprehend him.
"We are examining all possible angles and gathering evidence," a senior police official said.
The police received information about the incident around 9 am from the victim's parents, who alleged that their former domestic help was involved in the killing of their daughter.
The police said that the woman had completed engineering and was preparing for the civil services examination.
"What we have got to know is that after committing the crime in Rajasthan, he fled from there and came to Delhi. He directly reached here in Kailash Hills. He knew the exact point where girls' parents would hide keys when they would step out for the gym.
"He entered the house when one of the security guards had gone either to attend nature's call or for tea. After committing the crime, he fled towards the jungle side. We are also investigating if the accused changed his clothes just before fleeing," a police officer privy to the investigation told PTI.
CCTV cameras were installed at the entrance of the victim's room, with the live feed accessible on both the victim's and her father's mobile phones, said the officer.
Earlier, the police said that it was suspected that the accused fled with the mobile phone of the victim. They said that more than 20 teams of different units and police stations were working on the case.
The brutal incident has sent shockwaves across the upscale residential locality. Locals expressed concern over safety and security in these neighbourhoods.
Greater Kailash MLA Shikha Roy said the victim was a bright and talented young woman with a promising future, and her death is a painful loss for the entire community.
"I have known her personally for several years and have seen her grow up as a sincere, disciplined and exceptionally talented girl. She was brilliant in her studies, had completed engineering from IIT Delhi, and was preparing for the UPSC examination with great determination.
"She was an equally good dancer and other cultural activities, and despite being deeply focused on her studies, she remained humble and connected with people around her," Roy said.
A case has been registered, and forensic teams have collected evidence from the crime scene.
Some recent cases involving househelps:
- A horrifying double murder rocked Delhi's Lajpat Nagar locality in 2025, where a mother and her 14-year-old son were found brutally murdered inside their home. Both victims had their throats slit by their domestic help.
- Delhi Police in 2024 filed a chargesheet in the case of a 63-year-old doctor's murder in his home in south Delhi's Jangpura. Police named three persons as accused. Among them was a domestic help. They were charged under sections of murder, robbery and criminal conspiracy.
- A 17-year-old domestic worker was apprehended and her associate was arrested by the Delhi Police for the murder-robbery of a 66-year-old woman in her house in Dwarka in 2023.
