hornfels的音標為["h?:nfels]，基本翻譯為“角頁巖”，速記技巧可以考慮為：horn（角）+ fel（巖石）→角頁巖。

Hornfels的英文詞源可以追溯到拉丁語中的“cornu ferrum”，意為“鐵礦石的角”。它的變化形式包括復數形式“hornfelses”和過去式“hornfelized”。

相關單詞：

Felsite：由巖漿巖或變質巖形成的巖石。

Felsic：在火成巖分類中，指硅含量較高的巖石，如花崗巖。

Hornfelsization：變質作用的一種類型，將軟弱的巖石轉化為角礫巖。

Hornfels：一種角礫巖，主要由石英和長石等礦物組成。

Felsic Metal：一種富硅的金屬礦物，如霞石。

Felsic Rocks：指硅含量較高的巖石，如花崗巖等。

Felsic Jorner：一種火山巖，主要由石英和長石等礦物組成。

Felsic Tuff：一種火山碎屑巖，主要由石英和長石等礦物組成。

Felsic Tuffaceous Rocks：指主要由火山碎屑物質組成的巖石。

Hornfels是一種常見的變質巖石，它的形成過程是將軟弱的巖石經過變質作用轉化為角礫巖。它具有較高的硅含量和較低的鋁含量，因此具有較高的熔點和硬度。在地質學中，它與不同的巖石類型和地質作用相關聯，具有重要的研究價值。

常用短語：

1. hornfels rock

2. hornfels formation

3. hornfels ore

4. hornfels texture

5. hornfels mineralogy

6. hornfels classification

7. hornfels analysis

例句：

1. The ore is composed of hornfels, which is rich in iron and manganese.

2. The geologist is studying the hornfels texture of the rock to determine its composition and grade.

3. The mining engineer is analyzing the hornfels ore to determine its potential for production.

4. The geological map shows the location of the hornfels formation, which is rich in coal resources.

5. The orebody is classified as a low-grade hornfels, which poses a challenge for mining operations.

6. The mineralogy of the hornfels ore indicates that it contains high levels of copper and zinc.

英文小作文：

Hornfels is a type of metamorphic rock that forms from the alteration of igneous or sedimentary rocks under high-pressure and temperature conditions. It is characterized by its fine-grained texture and rich mineralogy, which includes iron, manganese, and other metallic elements.

Hornfels is commonly found in coalfields, where it serves as a host rock for coal deposits. It also occurs in some gold and base metal deposits, where it can act as a carrier rock for mineralization.

However, hornfels can also be a challenging rock type to mine due to its low-grade nature and complex mineralogy. Understanding its characteristics and mineralogy is crucial for effective mining operations.

In conclusion, hornfels is a versatile rock type that can serve as a host or carrier rock for various minerals and deposits. Understanding its characteristics and mineralogy is essential for effective mining operations and resource development.