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Words connected by meaning
Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.
Amphibole
noun · 78% connection
A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, general…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Bead
noun · 78% connection
A glassy drop of molten flux, as borax or microcosmic salt, used as a solvent and color test for several mineral earths and oxides, as…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Bournonite
noun · 78% connection
A mineral of a steel-gray to black color and metallic luster, occurring crystallized, often in twin crystals shaped like cogwheels (wh…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Cassiterite
noun · 78% connection
Native tin dioxide; tin stone; a mineral occurring in tetragonal crystals of reddish brown color, and brilliant adamantine luster; als…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Celestite
noun · 78% connection
Native strontium sulphate, a mineral so named from its occasional delicate blue color. It occurs crystallized, also in compact massive…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Domeykite
noun · 78% connection
A massive mineral of tin-white or steel-gray color, an arsenide of copper.
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Dufrenite
noun · 78% connection
A mineral of a blackish green color, commonly massive or in nodules. It is a hydrous phosphate of iron.
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Enargite
noun · 78% connection
An iron-black mineral of metallic luster, occurring in small orthorhombic crystals, also massive. It contains sulphur, arsenic, copper…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Epidote
noun · 78% connection
A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Eschynite
noun · 78% connection
A rare mineral, containing chiefly niobium, titanium, thorium, and cerium. It was so called by Berzelius on account of the inability o…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Euxenite
noun · 78% connection
A brownish black mineral with a metallic luster, found in Norway. It contains niobium, titanium, yttrium, and uranium, with some other…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Flint
noun · 78% connection
A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Hematite
noun · 78% connection
An important ore of iron, the sesquioxide, so called because of the red color of the powder. It occurs in splendent rhombohedral cryst…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Ilmenite
noun · 78% connection
a weakly magnetic black mineral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titan…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Iron
noun · 78% connection
The most common and most useful metallic element, being of almost universal occurrence, usually in the form of an oxide (as hematite,…
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Jamesonite
noun · 78% connection
A steel-gray mineral, of metallic luster, commonly fibrous massive. It is a sulphide of antimony and lead, with a little iron.
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Jarosite
noun · 78% connection
An ocher-yellow mineral occurring on minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.
Keilhau-ite
noun · 78% connection
A mineral of a brownish black color, related to titanite in form. It consists chiefly of silica, titanium dioxide, lime, and yttria.
Its definition shares important concepts with this word: iron-black, steel-gray, mineral, consisting, chiefly.