Definition of hornfels in English:

hornfels

noun ˈhɔːnfɛlzˈhɔrnfɛlz

mass noun

A dark, fine-grained metamorphic rock consisting largely of quartz, mica, and particular feldspars.
角页岩
Example sentencesExamples
- As a result, contact metamorphic minerals grow in random interlocking patterns giving rise to hornfels, a tough rock with no direction along which it will split preferentially.
- The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist.
- These are actually pseudomorphs of sericite (a fine-grained white mica) after cordierite and are found included in hornfels or slate as a product of contact metamorphism.
- For scheelite-dominated deposits, there is the formation of marbles and locally extensive tremolite, silicification, and the development of extensive skarn and hornfels zones.
- The hornfels can be very friable, as are the sakura ishi, which makes it easy to find nice crystal sections but difficult to collect matrix specimens.

Origin

Mid 19th century: from German, literally 'horn rock'.

Definition of hornfels in US English:

hornfels

nounˈhôrnfelzˈhɔrnfɛlz

A dark, fine-grained metamorphic rock consisting largely of quartz, mica, and particular feldspars.
角页岩
Example sentencesExamples
- The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist.
- The hornfels can be very friable, as are the sakura ishi, which makes it easy to find nice crystal sections but difficult to collect matrix specimens.
- These are actually pseudomorphs of sericite (a fine-grained white mica) after cordierite and are found included in hornfels or slate as a product of contact metamorphism.
- As a result, contact metamorphic minerals grow in random interlocking patterns giving rise to hornfels, a tough rock with no direction along which it will split preferentially.
- For scheelite-dominated deposits, there is the formation of marbles and locally extensive tremolite, silicification, and the development of extensive skarn and hornfels zones.

Origin

Mid 19th century: from German, literally ‘horn rock’.

词汇	hornfels
释义	Definition of hornfels in English: hornfels noun ˈhɔːnfɛlzˈhɔrnfɛlz mass noun A dark, fine-grained metamorphic rock consisting largely of quartz, mica, and particular feldspars. 角页岩 Example sentencesExamples As a result, contact metamorphic minerals grow in random interlocking patterns giving rise to hornfels, a tough rock with no direction along which it will split preferentially. The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist. These are actually pseudomorphs of sericite (a fine-grained white mica) after cordierite and are found included in hornfels or slate as a product of contact metamorphism. For scheelite-dominated deposits, there is the formation of marbles and locally extensive tremolite, silicification, and the development of extensive skarn and hornfels zones. The hornfels can be very friable, as are the sakura ishi, which makes it easy to find nice crystal sections but difficult to collect matrix specimens. Origin Mid 19th century: from German, literally 'horn rock'. Definition of hornfels in US English: hornfels nounˈhôrnfelzˈhɔrnfɛlz A dark, fine-grained metamorphic rock consisting largely of quartz, mica, and particular feldspars. 角页岩 Example sentencesExamples The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist. The hornfels can be very friable, as are the sakura ishi, which makes it easy to find nice crystal sections but difficult to collect matrix specimens. These are actually pseudomorphs of sericite (a fine-grained white mica) after cordierite and are found included in hornfels or slate as a product of contact metamorphism. As a result, contact metamorphic minerals grow in random interlocking patterns giving rise to hornfels, a tough rock with no direction along which it will split preferentially. For scheelite-dominated deposits, there is the formation of marbles and locally extensive tremolite, silicification, and the development of extensive skarn and hornfels zones. Origin Mid 19th century: from German, literally ‘horn rock’.
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