Pitchblende: alternatives and connections

Mineral pitch, Jews' pitch, or compact native bitumen. It is brittle, of a black or brown color and high luster on a surface of fractu…

Mineral pitch; a black, tarry substance, burning with a bright flame; Jew's pitch. It occurs as an abundant natural product in many pl…

A mineral consisting of titanic oxide, and hence identical with rutile and octahedrite in composition, but crystallizing in the orthor…

A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron.

a mineral consisting of cuprous oxide that is a source of copper

A stone or mineral on or in which are branching figures resembling shrubs or trees, produced by a foreign mineral, usually an oxide of…

A brownish black mineral with a metallic luster, found in Norway. It contains niobium, titanium, yttrium, and uranium, with some other…

To lower the pitch of; to cause to sound less sharp; to let fall from the pitch.

An impure resin of turpentine, hardened on the outside of pine trees by the spontaneous evaporation of its essential oil. When purifie…

A yellow amorphous mineral, essentially a hydrated oxide of uranium derived from the alteration of uraninite.

a weakly magnetic black mineral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titan…

a black mineral consisting of basic manganese oxide; a source of manganese

An iron-black or steel-gray mineral, consisting chiefly of the oxides of iron and titanium. It is commonly massive, but occurs also in…

A binary compound of oxygen with an atom or radical, or a compound which is regarded as binary; as, iron oxide, ethyl oxide, nitrogen…

A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric cry…

Of or pertaining to pitch; resembling pitch in color or quality; pitchy.

To throw, generally with a definite aim or purpose; to cast; to hurl; to toss; as, to pitch quoits; to pitch hay; to pitch a ball.

Dark as a pitch; pitch-black.