PHOTOGRAPHS OF BERYLLIUM ORE

The specimens below are from the Roadside and Rainbow pits. They illustrate some of the variety in appearance of beryllium ore.

SLIDE 52 is an ore specimen containing nodules of clay outlined by purple fluorite. The nodules are relict carbonate rock clasts. Specimen from Rainbow pit.

SLIDE 53 is an ore specimen containing fluorite-dioctahedral smectite nodules rimmed by the manganese oxide mineral chalcophanite. Specimen from Rainbow pit.

SLIDE 54 is an ore specimen containing nodules with fluorite cores, trioctahedral smectite intermediate zones, and rims of the manganese oxide minerals chalcophanite and todorokite(?). The trioctahedral smectite is magnesium-, zinc-, and lithium-rich. Specimen from Roadside pit.