It occurs with limonite, malachite, beudantite, adamite, cuproadamite, olivenite and smithsonite.

Conichalcite is often found encrusted on to limonitic rocks that have yellow to red colors.

Conichalcite will also form a solid solution series with the mineral calciovolborthite.

When these two minerals form a solid solution series, the two interchanging elements are arsenic and vanadium.

[3] Notable occurrences of conichalcite include Juab Co., Utah; Lincoln and Lyon counties of Nevada and Bisbee, Arizona, in the US; Durango, Mexico; Collahuasi, Tarapaca, Chile; Calstock, Cornwall and Caldbeck Fells, Cumbria, England; Andalusia, Spain; and Tsumeb, Namibia.