| slovo | definícia |
Syenite
(gcide) | Syenite \Sy"e*nite\, n. [L. Syenites (sc. lapis), from Syene,
Gr. ?.] (Min.)
(a) Orig., a rock composed of quartz, hornblende, and
feldspar, anciently quarried at Syene, in Upper Egypt,
and now called granite.
(b) A granular, crystalline, ingeous rock composed of
orthoclase and hornblende, the latter often replaced or
accompanied by pyroxene or mica. Syenite sometimes
contains nephelite (elaeolite) or leucite, and is then
called nephelite (elaeolite) syenite or {leucite
syenite}.
[1913 Webster] |
| | podobné slovo | definícia |
Elaeolite syenite
(gcide) | Elaeolite \E*l[ae]"o*lite\, n. [Gr. ? olive oil, oil + -lite.]
(Min.)
A variety of hephelite, usually massive, of greasy luster,
and gray to reddish color.
[1913 Webster]
El[ae]olite syenite, a kind of syenite characterized by the
presence of el[ae]olite.
[1913 Webster] |
leucite syenite
(gcide) | Syenite \Sy"e*nite\, n. [L. Syenites (sc. lapis), from Syene,
Gr. ?.] (Min.)
(a) Orig., a rock composed of quartz, hornblende, and
feldspar, anciently quarried at Syene, in Upper Egypt,
and now called granite.
(b) A granular, crystalline, ingeous rock composed of
orthoclase and hornblende, the latter often replaced or
accompanied by pyroxene or mica. Syenite sometimes
contains nephelite (elaeolite) or leucite, and is then
called nephelite (elaeolite) syenite or {leucite
syenite}.
[1913 Webster] |
nephelite elaeolite syenite
(gcide) | Syenite \Sy"e*nite\, n. [L. Syenites (sc. lapis), from Syene,
Gr. ?.] (Min.)
(a) Orig., a rock composed of quartz, hornblende, and
feldspar, anciently quarried at Syene, in Upper Egypt,
and now called granite.
(b) A granular, crystalline, ingeous rock composed of
orthoclase and hornblende, the latter often replaced or
accompanied by pyroxene or mica. Syenite sometimes
contains nephelite (elaeolite) or leucite, and is then
called nephelite (elaeolite) syenite or {leucite
syenite}.
[1913 Webster] |
Zircon syenite
(gcide) | Zircon \Zir"con\, n. [F., the same word as jargon. See Jargon
a variety of zircon.]
1. (Min.) A mineral consisting predominantly of zirconium
silicate (Zr2SiO4) occurring in tetragonal crystals,
usually of a brown or gray color. It consists of silica
and zirconia. A red variety, used as a gem, is called
hyacinth. Colorless, pale-yellow or smoky-brown
varieties from Ceylon are called jargon.
[1913 Webster +PJC]
2. an imitation gemstone made of cubic zirconia.
[PJC]
Zircon syenite, a coarse-grained syenite containing zircon
crystals and often also elaeolite. It is largely developed
in Southern Norway.
[1913 Webster] |
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