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Rhenium

Rubidium (Rb) is element number 37 on the Periodic Table of Elements, characterized by a silvery-white and soft metallic appearance. It is an alkali metal, belonging to Group 1 of the Periodic Table. This positioning signifies that Rubidium possesses a single electron in its outermost electron shell, predisposing it to very reactive behavior.

Like other alkali metals, Rubidium readily loses this lone valence electron to achieve a stable electron configuration, forming a positively charged ion (Rb+). It reacts violently with water and oxygen, resulting in Rubidium hydroxide (RbOH) and liberating hydrogen gas.

Rubidium has two naturally occurring isotopes: stable Rubidium-85, accounting for 72% of its natural abundance, and radioactive Rubidium-87. The latter is notable for its use in geological dating methods.


At TXRocks, we understand the strategic importance of Rubidium and its increasing demand in industries worldwide. We are proud to be a reliable source of this critical mineral, ensuring a consistent supply to cater to the needs of various sectors.

Critical Usecases

Telecommunications and Electronics

Rubidium’s highly regular atomic oscillation makes it ideal for use in frequency reference in telecommunications systems, GPS, and other electronics.

Scientific Research

Radioactive Rubidium-87 isotope is used in dating geological and archeological samples. It also aids in the creation of Bose-Einstein condensates in experimental physics.

Healthcare Industry

Rubidium chloride is used in some types of medical imaging for heart imaging and diagnosing heart diseases.

Manufacturing of Specialty Glass and Ceramics

Rubidium compounds impart violet color to fireworks and glass, making them desirable in certain niches of the glass industry.

Space Exploration

Owing to its high reactivity with oxygen, Rubidium can be used as a potential propellant in ion engines for space vehicles.

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