21. Which mineral is commonly used in making plaster of Paris? A. Kaolinite B. Gypsum C. Calcite D. Bauxite Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
22. What type of rock is formed when magma solidifies beneath the Earth's surface? A. Extrusive igneous B. Intrusive igneous C. Clastic sedimentary D. Foliated metamorphic Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
23. Which mineral is composed of iron and oxygen? A. Calcite B. Hematite C. Biotite D. Galena Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
24. Which rock is a metamorphosed form of limestone? A. Gneiss B. Schist C. Quartzite D. Marble Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
25. Which igneous rock is composed mainly of plagioclase and pyroxene? A. Granite B. Basalt C. Rhyolite D. Andesite Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
26. What does a vitreous luster look like? A. Dull B. Metallic C. Glassy D. Earthy Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
27. What is the streak color of hematite? A. Yellow B. Red-brown C. White D. Gray Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
28. What is cleavage in minerals? A. Shape of mineral B. Color of streak C. Way a mineral breaks along planes D. Specific gravity Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
29. Which mineral commonly forms hexagonal crystals? A. Quartz B. Talc C. Feldspar D. Gypsum Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
30. What is the dominant component of Earth's continental crust? A. Basalt B. Peridotite C. Granite D. Obsidian Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board