covellite

As a letter s

is the letter s with a.

As a noun covellite is

(mineral) a shiny indigo-blue sulfide mineral, cu]][[sulfur|s, that is an ore of copper.

As nouns the difference between covellite and null

is that covellite is (mineral) a shiny indigo-blue sulfide mineral, cu]][[sulfur|s, that is an ore of copper while null is zero, nil; the cardinal number before einn.

In mineral terms the difference between chalcocite and covellite

is that chalcocite is cuprous sulphide, Cu₂S, an important ore of copper while covellite is a shiny indigo-blue sulfide mineral, CuS, that is an ore of copper.

In mineral|lang=en terms the difference between covelline and covellite

is that covelline is (mineral) covellite while covellite is (mineral) a shiny indigo-blue sulfide mineral, cu]][[sulfur|s, that is an ore of copper.

As nouns the difference between covelline and covellite

is that covelline is (mineral) covellite while covellite is (mineral) a shiny indigo-blue sulfide mineral, cu]][[sulfur|s, that is an ore of copper.