Chadwickite
Chadwickite is an IMA-recognized mineral species in the arsenate class, with the chemical formula (UO₂)(HAsO₃).
It crystallizes in the tetragonal crystal system.
Key properties: Mohs hardness 2; specific gravity 4.86; Yellow streak; Dull luster; optically uniaxial.
IMA symbol Cdw, IMA status: approved, named in 1997.
Found as a secondary mineral in a uranium deposit.
It is found associated with Uraninite, metakahlerite, abernathyite, erythrite, pitticite.
The mineral was named to honor Sir James Chadwick (1891-1974), English Nobel Laureate in physics for his proof of the existence of neutrons.
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 C minerals or help write this entry.