Question

What is the characteristic color range of Feldspar mentioned in the notes?

• A. Green or Black
• B. Pure Gold or Silver
• C. Pale white to Salmon pink
• D. Only colorless

Answer 1

Answer:

C. Pale white to Salmon pink

Feldspar

• Feldspar, a crucial group of rock-forming tectosilicate minerals, exhibits a distinct color range.

• The characteristic hue typically varies from pale white to a delicate salmon pink.

• This color variation is primarily due to minor impurities present within the mineral structure.

• Feldspar is the most abundant mineral group in the Earth's crust, making up approximately 60% of terrestrial rocks.

• It is a key component in many igneous rocks, such as granite and basalt, as well as metamorphic and sedimentary rocks.

• Common types of feldspar include Plagioclase feldspar (a solid solution series ranging from albite to anorthite) and Alkali feldspar (a solid solution series ranging from albite to orthoclase).

• The pale white to salmon pink coloration is particularly noticeable in many commercially important feldspar varieties used in ceramics and glass manufacturing.