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hornblende    音标拼音: [h'ɔrnbl,ɛnd]
n. 角闪石

角闪石

hornblende
n 1: a green to black mineral of the amphibole group; consists
of silicates of calcium and sodium and magnesium and iron

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]


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  • Hornblende - Wikipedia
    Hornblende is an inosilicate (chain silicate) mineral, built around double chains of silica tetrahedra These chains extend the length of the crystal and are bonded to their neighbors by additional metal ions to form the complete crystal structure
  • Hornblende Mineral | Uses and Properties - Geology. com
    Hornblende is a rock-forming mineral that is an important constituent in acidic and intermediate igneous rocks such as granite, diorite, syenite, andesite, and rhyolite It is also found in metamorphic rocks such as gneiss and schist A few rocks consist almost entirely of hornblende
  • Hornblende: Mineral information, data and localities.
    A commonly used informal name for dark green to black amphiboles, largely in the Hornblende Root Name Group including ferro-hornblende or magnesio-hornblende
  • Hornblende | Igneous Rock, Mafic Minerals, Amphibole Group | Britannica
    Hornblende is the general name used for calcic amphiboles identified only by physical or optical properties The amphiboles differ chemically from the pyroxenes in two major respects
  • Hornblende Mineral (Everything You Need to Know to ID them)
    Hornblende is a darker stone or mineral that can be found in various hues, including black, dark grey, dark green, and dark brown However, lighter colors can be found in the extended Hornblende family, which includes members such as Pargasite and Edenite
  • Hornblende: The amphibole mineral hornblende information and pictures
    Detailed description, properties, locality information guide about the mineral amphibole hornblende
  • Hornblende - Clark Science Center
    Crystal habit and cleavage distinguish hornblende from dark-colored pyroxenes Is a common mineral occuring in both igneous and metamorphic rocks It characteristically forms near other amphiboles due to the complete solid solution End members include: edenite, pargasite, hastingsite and tschermakite Photomicrograph in thin section of hornblende
  • Hornblende Archives - Cochise College Geology
    Hornblende is the most common member of the amphibole family of silicate minerals Besides silica, it has a little bit of everything else in its chemistry: ferrous and ferric iron, aluminum, calcium, manganese, magnesium, and alkalis
  • Geology - rocks and minerals
    Hornblende is a member of the amphibole group of more complex silicates, in which the tetrahedra are linked to form a continuous chain twice the width of the pyroxene chains For this reason they are often referred to as double chain silicates
  • Hornblende | Physical - Optical Properties, Occurrence, Uses
    Hornblende is a inosilicate amphibole minerals, which are two type hornblende minerals They are ferrohornblende and magnesiohornblende





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