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Caesium's cheaper neighbour, recovered from the same rare deposits, and the basis of the atomic clocks small enough to fit in a rack.
Why does it matter?
Rubidium clocks keep telecom networks and power grids synchronised where a caesium standard would be too expensive.
Deeper written sections for this material have not been published yet. Everything below is drawn straight from the source datasets and is complete.
Read the numbers correctly.
Production is not published.
Compounds and metal, mostly as a lepidolite and pollucite by-product.
Who holds the reserves
“Reserves” is a strict word. It means the part of a known deposit that could be extracted economically right now, with today’s prices and today’s technology — not everything that exists in the ground. Reserves grow when prices rise or a new process is invented, and shrink when they fall.
Australia, Canada, China, and Namibia were estimated to have reserves totaling less than 200,000 tons of recoverable rubidium materials
Australia, Canada, China, and Namibia were estimated to have reserves totaling less than 200,000 tons of recoverable rubidium materialsmetric tons2025
2024 · 128.0high 138.0 dollars per gram2025 · 138.0
Basis: 1?gram ampoules of 99.75% (metal basis) rubidium. Annual averages as published in USGS Mineral Commodity Summaries 2026 · source ↗. These are reference annual averages, not a live market quote.
10-gram ampoules of 99.8% (metal basis) rubidium formate hydrate
Annual averagedollars per 10-grams
2024 · 302.0high 302.0 dollars per 10-grams2025 · 301.0
Basis: 10-gram ampoules of 99.8% (metal basis) rubidium formate hydrate. Annual averages as published in USGS Mineral Commodity Summaries 2026 · source ↗. These are reference annual averages, not a live market quote.
