Which of the following is not a silicate mineral?
Calcite
Olivine
Feldspar
Amphibole
Calcite is a carbonate mineral, not a silicate. Olivine, feldspar, and amphibole are all examples of silicate minerals.
Incorrect options
b) Olivine is a silicate mineral that is commonly found in mafic igneous rocks.
c) Feldspar is a common group of rock-forming silicate minerals that make up about 60% of the Earth's crust.
d) Amphibole is a group of silicate minerals that are commonly found in metamorphic and igneous rocks.