Hornblende is a complex inosilicate series of minerals. Hornblende is not a recognized mineral, in its own right but the name is used as a general or field term, to refer to a dark amphibole.
comes from a old German miners word, "horn", which may be related to the color of horn, and the German word "blenden", which means "to deceive". It looked like many of the other mineral ores which could be smelted to produce metals, but hornblende ...
Hornblende is common at Philips Mine as large masses and coarse crystalline specimens up to two feet long (Klemic et al., 1959). Associated with green albite on the lower dump of Philips pyrrhotite mine.
SilicateHornblende
Ca2(Mg,Fe)4Al(Si7Al)O22(OH,F)2
Most distinguishing features:
Prominent striations, prismatic crystals and angle on cleavages is distinguishing.
Felsic Granite (Hornblende, Muscovite, Orthoclase)
Mafic Pegmatite (Amphibole, Micas, Olivine, Pyroxene)
Ultramafic Kimberlite, Lamproite (Garnet, Olivine, Peridotite, Phlogopite, Pyroxene) ...
see hornblende .. a rock Analcime .. Also Pollucite, Zeolite group, Analcite
NaAlSi2O6.H2O
Crystallography: cubic, tetragonal trisoctahedron (trapezohedron) transparent to translucent
Colors: colorless, white, greenish, reddish
Luster: glassy ...
aka Ferroan Enstatite, Hypersten, Labrador Hornblende
The name hypersthene (HIGH-purse-theen) is of Greek origin: hyper (meaning "extreme" or "above") and sthenos ("strength").
Also interbedded with the gneiss are several large masses of a peculiar hornblende-like rock (kupfferite): this is in part a felted mass of fibrous lamellae, ...
It and the massive green variety that often houses ruby crystals and inclusions of dark hornblende are used for cabochons and carved ornamental objects.
The garnet is present as imperfectly developed crystals surrounded by a rim of coarsely crystalline hornblende. The crystals range from about 1 millimeter to almost 1 meter in diameter but average about 100 millimeters in diameter.
Granite: A common igneous rock composed of quartz, orthoclase, and hornblende, often accompanied by pyroxene or mica. It is called granite because of the granular surface. Granite is frequently used for buildings and monuments.
As lapis lazuli (Arabic/Latin blue stone) is composed of several minerals (if only in small quantities - augite, calcite, diopside, mica, hauynite, hornblende, pyrite) some experts consider it not to be a mineral, but a rock; ...
It is chalcedony that has dendritic (tree-like) inclusions of green (red or black) hornblende. The inclusions often form beautiful patterns. Moss agate has a hardness of 6.5-7 and a specific gravity of 2.6.
anyolite (n) is a metamorphic rock which is considered to be a form of zoisite as it contains zoisite minerals mixed with hornblende. Anyolite is usually green. Where there are inclusions of ruby, anyolite is known as ruby-in-zoisite.
CARBON SPOTS - Any black appearing inclusions in a diamond caused by the addition of the minerals graphite or hornblende.
 See also: Mineral, Crystal, Minerals, Color, Stone
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