31. Which of the following minerals reacts with dilute hydrochloric acid? A. Gypsum B. Quartz C. Calcite D. Feldspar 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
32. What does the term "felsic" refer to in igneous petrology? A. High iron content B. Dark-colored minerals C. Silica-rich composition D. Low temperature of crystallization 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
33. Which rock forms from compacted and cemented sand? A. Shale B. Limestone C. Sandstone D. Conglomerate 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
34. What is the color of the streak left by pyrite? A. Gold B. Black C. Green D. Brown 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
35. Which mineral is commonly found in both igneous and metamorphic rocks? A. Halite B. Quartz C. Gypsum D. Talc 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
36. What kind of rock is formed from volcanic ash? A. Basalt B. Obsidian C. Tuff D. Diorite 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
37. Which property of minerals describes their resistance to being scratched? A. Luster B. Cleavage C. Hardness D. Tenacity 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
38. Which of the following rocks is typically formed in a river environment? A. Shale B. Breccia C. Conglomerate D. Gneiss 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
39. What does a conchoidal fracture in a mineral look like? A. Splintery B. Step-like C. Smooth curved surfaces D. Jagged lines 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
40. Which mineral is used as the reference mineral for Mohs hardness 10? A. Quartz B. Topaz C. Diamond D. Corundum 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
