Definition of lepidomelane. Meaning of lepidomelane. Synonyms of lepidomelane

Here you will find one or more explanations in English for the word lepidomelane. Also in the bottom left of the page several parts of wikipedia pages related to the word lepidomelane and, of course, lepidomelane synonyms and on the right images related to the word lepidomelane.

Definition of lepidomelane

Lepidomelane Lep`i*dom"e*lane (l[e^]p`[i^]*d[o^]m"[-e]*l[=a]n), n. [Gr. lepi`s -i`dos, a scale + me`las, me`laina, black.] (Min.) An iron-potash mica, of a raven-black color, usually found in granitic rocks in small six-sided tables, or as an aggregation of minute opaque scales. See Mica.
Mica Mi"ca, n. [L. mica crumb, grain, particle; cf. F. mica.] (Min.) The name of a group of minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic. They differ widely in composition, and vary in color from pale brown or yellow to green or black. The transparent forms are used in lanterns, the doors of stoves, etc., being popularly called isinglass. Formerly called also cat-silver, and glimmer. Note: The important species of the mica group are: muscovite, common or potash mica, pale brown or green, often silvery, including damourite (also called hydromica); biotite, iron-magnesia mica, dark brown, green, or black; lepidomelane, iron, mica, black; phlogopite, magnesia mica, colorless, yellow, brown; lepidolite, lithia mica, rose-red, lilac. Mica (usually muscovite, also biotite) is an essential constituent of granite, gneiss, and mica slate; biotite is common in many eruptive rocks; phlogopite in crystalline limestone and serpentine. Mica diorite (Min.), an eruptive rock allied to diorite but containing mica (biotite) instead of hornblende. Mica powder, a kind of dynamite containing fine scales of mica. Mica schist, Mica slate (Geol.), a schistose rock, consisting of mica and quartz with, usually, some feldspar.

Meaning of lepidomelane from wikipedia

- also refers to a flaky micaceous form of haematite, and the field term Lepidomelane for unanalysed iron-rich Biotite avoids this ambiguity. Biotite is also...
- minerals, when present, are magnetite and an iron-rich variety of biotite (lepidomelane). The rock was named after its occurrence at Litchfield, Maine, USA,...
- until the 1940s. Between the mica formatings, apatite, betafite, and lepidomelane were also found. Bancroft Mica and Stone Products Mining Syndicate operated...