Rb
Specialty Metal Medium Criticality

Rubidium

About Rubidium

Rubidium is a soft, highly reactive alkali metal used primarily in specialized electronic and research applications. Rubidium atomic frequency standards are used as secondary time references in telecommunications networks and GPS systems. Production is extremely limited, as rubidium is typically recovered as a byproduct of cesium or lithium mining, making it one of the least produced metals globally.

Primary Uses

Atomic frequency standards GPS and telecommunications timing Biomedical research Specialty glass and ceramics

Top Producing Countries

1 Canada
2 Namibia
3 Zambia

Quick Facts

Symbol
Rb
Atomic Number
37
Category
Specialty Metal
Criticality Level
Medium
Supply Risk
Medium
Top Producer
Canada
USGS Critical List
Listed
EU CRM List
Listed

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