Concept:Minerals are naturally occurring inorganic solids with a defined chemical composition and crystal structure.
Each mineral has unique physical and chemical properties that help in its identification.
Explanation:Option A: Pyroxene is a common group of inosilicate minerals found in many igneous and metamorphic rocks, and it is also frequently present in meteorites.
This makes the statement correct.
Option B: Amphiboles are a group of silicate minerals, but they constitute only about 10% of the Earth's crust, not 20%.
Thus, this statement is incorrect.
Option C: Quartz (
SiO2​) is highly stable and does not dissolve in water under normal conditions.
Hence, this statement is false.
Option D: The term 'sedimentary' originates from the Latin word 'sedimentum', meaning settling, not 'kelimentum'.
Therefore, this statement is wrong.
Answer:Pyroxene is commonly found in meteorites.