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Carbonate

Blatonite

(UO₂)(CO₃)·H₂O
Hardness2–3
ClassCarbonate
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Blatonite specimen

Yellow crystals of the very rare mineral blatonite from the type locality in Utah (Jomac Mine, San Juan County, Utah, United States of America) and only one of the three known localities worldwide. Associated mineral is magnesiozippeite. — Photo: David Hospital · CC BY-SA 4.0

Blatonite

Blatonite is an IMA-recognized mineral species in the carbonate class, with the chemical formula (UO₂)(CO₃)·H₂O.

Key properties: Mohs hardness 2–3; specific gravity 4.05; White streak; Silky luster; optically uniaxial.

IMA symbol Blt, IMA status: approved, named in 1997.

Found in seams of gypsum in the oxidized portions of a roll-front-type uranium deposit in silty conglomerate.

It is found associated with Gypsum, boltwoodite, coconinoite, metazeunerite, rutherfordine, azurite, brochantite, carbonate-cyanotrichite, malachite, manganoan smithsonite.

The mineral was named to honor Dr. Norbert Blaton (1945–), crystallographer and specialist in uranium minerals, Catholic University of Leuven, Leuven, Belgium.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more B minerals or help write this entry.