psilomelane

(redirected from Black hematite)
Also found in: Thesaurus, Encyclopedia.
Related to Black hematite: red hematite, specular hematite

psi·lom·e·lane

 (sī-lŏm′ə-lān′)
n.
A mixture of black manganese oxide minerals.

[Greek psīlos, bare + Greek melās, melan-, black.]

psilomelane

(sɪˈlɒmɪˌleɪn)
n
(Minerals) a common black to grey secondary mineral consisting of hydrated basic oxide of manganese and barium: a source of manganese. Formula: BaMn9O16(OH)4. Also called: romanicite
[C19: from Greek psilos bare + melas black]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.psilomelane - a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese
atomic number 25, manganese, Mn - a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
Each guest received an invite housed inside its own box, embellished with hundreds of jet black hematite crystals.
Brilliant black hematite and rarely ilmenite occur in some Alpine-type clefts as flower-like subparallel aggregates of offset crystals, aptly called "iron roses," which in turn are classifiable into a few types on the basis of morphology.