Osmium: Osmium is the densest naturally occurring element and is often used in alloys, electrical contacts, and fountain pen tips. It is a rare metal and has a bluish-white color.
Ruthenium: Ruthenium is a versatile metal used in various applications, including electrical contacts, catalysts, and jewelry.It is valued for its hardness, corrosion resistance.
Indium: Indium is a soft and malleable metal with excellent conductivity. It is primarily used in electronic devices, such as touchscreens, solar panels, and semiconductors.
Tantalum:It is a corrosion-resistant metal widely used in electronics,medical devices and aerospace applications.It is valued for its ability to store and release electrical energy.
Cobalt:It is a hard,lustrous metal used in various industries,including aerospace,electronics and batteries.Cobalt prices have fluctuated due to supply chain concerns and ethical sourcing issues.
Silver: Silver has numerous applications, including jewelry, electronics, photography, and solar panels. While it is not as expensive as some other metals on this list.
Lithium:It is a lightweight metal used in rechargeable batteries,electric vehicles and energy storage systems.The electric vehicles and renewable energy has led to increased demand for this.