As a noun mineral

is mineral.

As an adjective cuproan is

(mineralogy) describing minerals that contain monovalent copper.

As a noun mineral

is mineral.

As an adjective chromatian is

(mineralogy) describing minerals that contain chromate anions.

As a noun chromate

is any salt of chromic acid; in solution the yellow chromate anion (CrO₄^2-) is in equilibrium with the orange dichromate anion (Cr₂O₇^2-), the relative amount of each ion depending on the pH; they are both very powerful oxidizing agents.

As an adjective chromatian is

describing minerals that contain chromate anions.

As a noun mineral

is mineral.

As an adjective cobaltoan is

(mineralogy) describing minerals that contain divalent cobalt.

As adjectives the difference between divalent and cobaltoan

is that divalent is (chemistry) having a valence of two while cobaltoan is (mineralogy) describing minerals that contain divalent cobalt.

As a proper noun cobalt

is a village in connecticut.

As an adjective cobaltoan is

(mineralogy) describing minerals that contain divalent cobalt.

As a noun mineral

is mineral.

As an adjective chloratian is

(mineralogy) describing minerals that contain chlorate anions.

As a noun chlorate

is any salt of chloric acid; chlorates are powerful oxidizing agents.

As an adjective chloratian is

describing minerals that contain chlorate anions.

As a noun mineral

is mineral.

As an adjective chromian is

(mineralogy) describing minerals that contain chromium.

As a proper noun chromium

is an open source web browser developed by google[http://devchromiumorg/developers/how-tos/getting-started "google chrome is built with open source code from chromium"].

As an adjective chromian is

(mineralogy) describing minerals that contain chromium.