| slovo | definícia |
hornblende
(encz) | hornblende,amfibol n: Zdeněk Brož |
Hornblende
(gcide) | Hornblende \Horn"blende`\, n. [G., fr. horn horn + blende
blende.] (Min.)
The common black, or dark green or brown, variety of
amphibole. (See Amphibole.) It belongs to the aluminous
division of the species, and is also characterized by its
containing considerable iron. Also used as a general term to
include the whole species.
[1913 Webster]
Hornblende schist (Geol.), a hornblende rock of schistose
structure.
[1913 Webster] |
hornblende
(gcide) | Amphibole \Am"phi*bole\ ([a^]m"f[i^]*b[=o]l), n. [Gr.
'amfi`bolos doubtful, equivocal, fr. 'amfiba`llein to throw
round, to doubt: cf. F. amphibole. Ha["u]y so named the genus
from the great variety of color and composition assumed by
the mineral.] (Min.)
A common mineral embracing many varieties varying in color
and in composition. It occurs in monoclinic crystals; also
massive, generally with fibrous or columnar structure. The
color varies from white to gray, green, brown, and black. It
is a silicate of magnesium and calcium, with usually
aluminium and iron. Some common varieties are tremolite,
actinolite, asbestus, edenite, hornblende (the last
name being also used as a general term for the whole
species). Amphibole is a constituent of many crystalline
rocks, as syenite, diorite, most varieties of trachyte, etc.
See Hornblende.
[1913 Webster] |
hornblende
(wn) | hornblende
n 1: a green to black mineral of the amphibole group; consists
of silicates of calcium and sodium and magnesium and iron |
| | podobné slovo | definícia |
Hornblende
(gcide) | Hornblende \Horn"blende`\, n. [G., fr. horn horn + blende
blende.] (Min.)
The common black, or dark green or brown, variety of
amphibole. (See Amphibole.) It belongs to the aluminous
division of the species, and is also characterized by its
containing considerable iron. Also used as a general term to
include the whole species.
[1913 Webster]
Hornblende schist (Geol.), a hornblende rock of schistose
structure.
[1913 Webster]Amphibole \Am"phi*bole\ ([a^]m"f[i^]*b[=o]l), n. [Gr.
'amfi`bolos doubtful, equivocal, fr. 'amfiba`llein to throw
round, to doubt: cf. F. amphibole. Ha["u]y so named the genus
from the great variety of color and composition assumed by
the mineral.] (Min.)
A common mineral embracing many varieties varying in color
and in composition. It occurs in monoclinic crystals; also
massive, generally with fibrous or columnar structure. The
color varies from white to gray, green, brown, and black. It
is a silicate of magnesium and calcium, with usually
aluminium and iron. Some common varieties are tremolite,
actinolite, asbestus, edenite, hornblende (the last
name being also used as a general term for the whole
species). Amphibole is a constituent of many crystalline
rocks, as syenite, diorite, most varieties of trachyte, etc.
See Hornblende.
[1913 Webster] |
Hornblende granite
(gcide) | Granite \Gran"ite\ (gr[a^]n"[i^]t), n. [It. granito granite,
adj., grainy, p. p. of granire to make grainy, fr. L. granum
grain; cf. F. granit. See Grain.] (Geol.)
A crystalline, granular rock, consisting of quartz, feldspar,
and mica, and usually of a whitish, grayish, or flesh-red
color. It differs from gneiss in not having the mica in
planes, and therefore in being destitute of a schistose
structure.
[1913 Webster]
Note: Varieties containing hornblende are common. See also
the Note under Mica.
[1913 Webster]
Gneissoid granite, granite in which the mica has traces of
a regular arrangement.
Graphic granite, granite consisting of quartz and feldspar
without mica, and having the quartz crystals so arranged
in the transverse section like oriental characters.
Porphyritic granite, granite containing feldspar in
distinct crystals.
Hornblende granite, or
Syenitic granite, granite containing hornblende as well as
mica, or, according to some authorities hornblende
replacing the mica.
Granite ware.
(a) A kind of stoneware.
(b) A Kind of ironware, coated with an enamel resembling
granite.
[1913 Webster] |
Hornblende schist
(gcide) | Hornblende \Horn"blende`\, n. [G., fr. horn horn + blende
blende.] (Min.)
The common black, or dark green or brown, variety of
amphibole. (See Amphibole.) It belongs to the aluminous
division of the species, and is also characterized by its
containing considerable iron. Also used as a general term to
include the whole species.
[1913 Webster]
Hornblende schist (Geol.), a hornblende rock of schistose
structure.
[1913 Webster] |
Hornblende slate
(gcide) | Slate \Slate\ (sl[=a]t), n. [OE. slat, sclat, OF. esclat a
shiver, splinter, F. ['e]clat, fr. OF. esclater to shiver, to
chip, F. ['e]clater, fr. OHG. sleizen to tear, slit, split,
fr. sl[imac]zan to slit, G. schleissen. See Slit, v. t.,
and cf. Eclat.]
1. (Min.) An argillaceous rock which readily splits into thin
plates; argillite; argillaceous schist.
[1913 Webster]
2. Any rock or stone having a slaty structure.
[1913 Webster]
3. A prepared piece of such stone. Especially:
(a) A thin, flat piece, for roofing or covering houses,
etc.
(b) A tablet for writing upon.
[1913 Webster]
4. An artificial material, resembling slate, and used for the
above purposes.
[1913 Webster]
5. A thin plate of any material; a flake. [Obs.]
[1913 Webster]
6. (Politics) A list of candidates, prepared for nomination
or for election; a list of candidates, or a programme of
action, devised beforehand. [Cant, U.S.] --Bartlett.
[1913 Webster]
Adhesive slate (Min.), a kind of slate of a greenish gray
color, which absorbs water rapidly, and adheres to the
tongue; whence the name.
Aluminous slate, or Alum slate (Min.), a kind of slate
containing sulphate of alumina, -- used in the manufacture
of alum.
Bituminous slate (Min.), a soft species of sectile clay
slate, impregnated with bitumen.
Hornblende slate (Min.), a slaty rock, consisting
essentially of hornblende and feldspar, useful for
flagging on account of its toughness.
Slate ax or Slate axe, a mattock with an ax end, used in
shaping slates for roofs, and making holes in them for the
nails.
Slate clay (Geol.), an indurated clay, forming one of the
alternating beds of the coal measures, consisting of an
infusible compound of alumina and silica, and often used
for making fire bricks. --Tomlinson.
Slate globe, a globe the surface of which is made of an
artificial slatelike material.
Slate pencil, a pencil of slate, or of soapstone, used for
writing on a slate.
Slate rocks (Min.), rocks which split into thin laminae,
not necessarily parallel to the stratification; foliated
rocks.
Slate spar (Min.), a variety of calcite of silvery white
luster and of a slaty structure.
Transparent slate, a plate of translucent material, as
ground glass, upon which a copy of a picture, placed
beneath it, can be made by tracing.
[1913 Webster] |
|