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Germanium

Germanium, denoted by the chemical symbol Ge and atomic number 32, sits in the carbon group of the periodic table. Germanium is typically a byproduct of zinc ore processing but can also be found in small amounts in silver, lead, and copper ores.

The element is a lustrous, gray-white, brittle metalloid with a diamond-like crystalline structure. It is known for its ability to transmit infrared radiation and for its exceptional semiconductor properties.


At TXRocks, we supply a wide range of critical minerals that underpin advancements in various industries worldwide. Germanium, a hard, brittle semimetal, is one such integral resource. Its unique optical and semiconducting properties have paved the way for its use in telecommunications, infrared optics, and solar cell applications.

Critical Usecases

Semiconductor Devices

Germanium was a prime material in the early history of semiconductors, used for diodes, transistors, and early integrated circuits. Today, germanium is finding a resurgence in new types of transistors.

Fiber Optic Systems

Germanium is used in fiber optic cables as a core material and in the production of optical fiber amplifiers.

Infrared Optics

Germanium’s high refractive index and ability to transmit infrared radiation make it perfect for infrared optics, thermal imaging, and night vision devices.

Solar Cells

Germanium is often used in multijunction photovoltaic cells for solar panels due to its ability to efficiently convert sunlight into electrical energy.

Pharmaceuticals

Small amounts of germanium are used in some pharmaceutical products due to its assumed health benefits.

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