Which of the following is the hardest naturally occurring mineral? A) Quartz B) Feldspar C) Diamond D) Calcite Answer: C) Diamond
Which rock is formed by the cooling and solidification of magma? A) Sedimentary rock B) Metamorphic rock C) Igneous rock D) Limestone Answer: C) Igneous rock
Granite is an example of: A) Sedimentary rock B) Igneous rock C) Metamorphic rock D) Organic rock Answer: B) Igneous rock
Marble is a metamorphic form of: A) Granite B) Basalt C) Limestone D) Sandstone Answer: C) Limestone
Which mineral is commonly used in making glass? A) Quartz B) Talc C) Gypsum D) Mica Answer: A) Quartz
Which of the following is the softest mineral on Mohs scale? A) Talc B) Gypsum C) Calcite D) Quartz Answer: A) Talc
Coal is classified as: A) Igneous rock B) Sedimentary rock C) Metamorphic rock D) Mineral Answer: B) Sedimentary rock
The Mohs scale is used to measure: A) Density B) Color C) Hardness D) Weight Answer: C) Hardness
Basalt is an example of: A) Igneous rock B) Sedimentary rock C) Metamorphic rock D) Organic rock Answer: A) Igneous rock
Which rock type is formed from compressed sediments? A) Igneous B) Metamorphic C) Sedimentary D) Volcanic Answer: C) Sedimentary
Which mineral is the principal source of aluminum? A) Bauxite B) Hematite C) Galena D) Magnetite Answer: A) Bauxite
Slate is formed from: A) Sandstone B) Shale C) Granite D) Basalt Answer: B) Shale
Which mineral is commonly known as rock salt? A) Quartz B) Halite C) Calcite D) Gypsum Answer: B) Halite
The study of rocks is called: A) Biology B) Mineralogy C) Petrology D) Astronomy Answer: C) Petrology
Which rock is mainly composed of quartz grains? A) Sandstone B) Marble C) Slate D) Basalt Answer: A) Sandstone
Which mineral is used in making plaster of Paris? A) Quartz B) Talc C) Gypsum D) Mica Answer: C) Gypsum
Obsidian is a type of: A) Sedimentary rock B) Metamorphic rock C) Volcanic glass D) Mineral Answer: C) Volcanic glass
Which mineral contains iron and is attracted by magnets? A) Gypsum B) Magnetite C) Talc D) Calcite Answer: B) Magnetite
Which rock is formed due to intense heat and pressure? A) Sedimentary B) Igneous C) Metamorphic D) Organic Answer: C) Metamorphic
Limestone is primarily composed of: A) Silicon dioxide B) Calcium carbonate C) Sodium chloride D) Iron oxide Answer: B) Calcium carbonate
Which mineral is commonly used in pencils? A) Graphite B) Quartz C) Feldspar D) Talc Answer: A) Graphite
Which of the following is not a mineral? A) Quartz B) Mica C) Coal D) Feldspar Answer: C) Coal
The most abundant mineral group in Earth’s crust is: A) Sulfides B) Carbonates C) Feldspars D) Oxides Answer: C) Feldspars
Which rock often contains fossils? A) Granite B) Basalt C) Sedimentary rock D) Marble Answer: C) Sedimentary rock
Mica is characterized by its: A) Magnetic property B) Ability to split into thin sheets C) Extreme hardness D) Metallic nature Answer: B) Ability to split into thin sheets
Which mineral is the main source of iron? A) Bauxite B) Hematite C) Galena D) Calcite Answer: B) Hematite
Pumice is notable because it: A) Sinks rapidly in water B) Contains fossils C) Floats on water D) Is a metamorphic rock Answer: C) Floats on water
Which of the following is a precious gemstone? A) Gypsum B) Talc C) Ruby D) Calcite Answer: C) Ruby
Which process changes sedimentary rocks into metamorphic rocks? A) Weathering B) Erosion C) Heat and pressure D) Cooling Answer: C) Heat and pressure
Earth’s crust is mainly composed of: A) Rocks and minerals B) Water and air C) Metals only D) Organic matter only Answer: A) Rocks and minerals