Travis Olds

Bladed yellow-green natromarkeyite from the Markey mine. Its structure is related to markeyite, where 2 Na replace 1 Ca and 1 H2O group; Locality: Markey Mine, Red Canyon, White Canyon Mining Distr...

Yellow green crystals of uroxite with steeply sloping terminations and rectangular cross section. Uroxite is the first reported uranyl oxalate mineral, where the source of oxalate likely originates...

A tabular green crystal of paddlewheelite in a vug of dolomite and chalcopyrite. Collected by myself and Jakub Plá?il Sep 2016, shortly after the 500th anniversary of Jáchymov; The name was chosen ...

Dark reddish brown blades of shinkolobweite (IMA 2016-095) coating massive uraninite with orange fourmarierite and pale rutherfordine. Horizontal field of view is 1 mm. The structure of shinkolobwe...

A 0.5 cm region of "gummite"; composed of bubbly uraninite and likely yellow-green kasolite or uranophane. Locality: Paulding Uranium prospect, Watersmeet, Gogebic Co., Michigan, USA;

A 0.5 cm field of bright orange powdery uraniferous wulfenite (up to .22 atoms per formula unit U substituting for Pb) coating molybdenite and altered uraninite; Locality: Paulding Uranium prospect...

An aesthetic vug of acicular uranophane crystals to 1 mm in amphibole gneiss from one of the most radioactive uranium prospects in Upper Michigan – which is actually an exposure only 2 feet long!...

A pale green field of massive to radiating sklodowskite and uranophane coating molybdenite and uraninite. At SEM level magnification the field turns into a web of thousands of thin fibrous crystals...

Interesting uranyl silicate and uranyl molybdate minerals can be found in a 2 foot long mafic lens cutting gneiss. Taken 7/11/14; Locality: Paulding Uranium prospect, Watersmeet, Gogebic Co., Mich...