Tourmaline vs Hornblende - What's the difference?
tourmaline | hornblende |
A complex black or dark coloured borosilicate mineral.
*{{quote-magazine, date=2012-03
, author=Lee A. Groat
, title=Gemstones
, volume=100, issue=2, page=128
, magazine=(American Scientist)
A transparent gemstone cut from it.
A green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock.
As nouns the difference between tourmaline and hornblende
is that tourmaline is a complex black or dark coloured borosilicate mineral while hornblende is a green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock.tourmaline
English
Noun
(en noun)citation, passage=Although there are dozens of different types of gems, among the best known and most important are […] . (Common gem materials not addressed in this article include amber, amethyst, chalcedony, garnet, lazurite, malachite, opals, peridot, rhodonite, spinel, tourmaline , turquoise and zircon.)}}