hornblende
1
9.9
- noun
- /ˈhɔrnˌblɛnd/
- Specialized
- But she examined it with great interest and squealed with delight, for all her life she had been glutted with precious stones and priceless metals, but she had never seen tin before, or mica, or feldspar, or hornblende.
Examples
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Hornblende is usually found in dark-colored metamorphic rocks; sometimes in igneous rocks.
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John's analysis determined that the black material is the mineral arfvedsonite, an amphibole similar to hornblende, with a composition of Na3(Fe, Mg)4FeSi8O22(F, OH)2.
Blog text (21) -
A dull, fine-grained, gray-and-white rock, flecked with tiny crystals of black mica and hornblende, it looks like a stone she might have picked up almost anywhere in New England.
Academic text (2006) -
He came plodding up to the palace of the princess on a plow horse, and he brought her a small tin box filled with mica, feldspar, and hornblende, which he had picked up on the way.
Fiction book (2000) -
The geologist identified hornblende within the granite sample he examined.
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In the rock formation, hornblende appeared as dark green to black mineral crystals.
Surface Forms
Etymology
Hornblende comes from German parts horn 'horn' and blende 'to deceive' because its shiny, horn-like crystals can fool people who look at rocks. So, the name helps you remember that hornblende is a dark green to black mineral often found in rocks.