Lexic.us

Definition of Hornblende

1. Noun. A green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron.

Definition of Hornblende

1. n. 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.

Definition of Hornblende

1. Noun. A green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock. ¹

¹ Source: wiktionary.com

Definition of Hornblende

1. [n -S]

Medical Definition of Hornblende

1. 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 characterised by its containing considerable iron. Also used as a general term to include the whole species. Hornblende schist, a hornblende rock of schistose structure. Origin: G, fr. Horn horn + blende blende. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Hornblende

Literary usage of Hornblende

Below you will find example usage of this term as found in modern and/or classical literature:

1. Science by American Association for the Advancement of Science (1905)
"Gabbro, consisting mostly of hornblende, but also containing a little ... Of the metamorphic rocks, hornblende-diorite- gneiss is by far the commonest. ..."

2. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"Among the accessory minerals, garnet, felspar, and hornblende are not infrequent. Mica-schist forms extensive regions in Norway, Scotland, the Alps, ..."

3. Geological Magazine by Henry Woodward (1902)
"The pyroxenes are distinguished from the hornblende by their cleavage and extinction angles and their want of colour. The augite shows distinctly stronger ..."

4. A System of Mineralogy: Descriptive Mineralogy, Comprising the Most Recent by James Dwight Dana, George Jarvis Brush (1868)
"The analogy in composition between pyroxene and hornblende has been abundantly illustrated. They have the same general formula ; and under this formula ..."

5. Text-book of Geology by Archibald Geikie (1885)
"Under the microscope, hornblende presents cleavage-angles of 124" 30', the definite cleavage-planes intersecting each other in a well-marked lattice work, ..."

6. A System of Mineralogy: Descriptive Mineralogy, Comprising the Most Recent by James Dwight Dana, George Jarvis Brush (1889)
"Calculating from the angle /Л /in pyroxene, 87° 5', the angle of г-2 is precisely 124° 30', or the angle /л / in hornblende. The annexed table exhibits the ..."

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