Question

yooperlites, found along the shores of michigans upper peninsula, seem like plain gray stones. when exposed to ultraviolet light, however, these rocks glow a brilliant orange. a mineral called sodalite embedded in the stone endows yooperlites with this extraordinary quality.

first discovered in 2017, yooperlites cause quite a stir among rock hunters. the enticing orange glow eludes many, but a greater probability of spying yooperlites exists with two flashlights in hand—one regular white light and one ultraviolet. a uv flashlight is needed to see the minerals characteristic glow but is not very helpful in navigating dark trails. uv - protective glasses are a must since other dutiful hunters will be using this equipment, too. every year, seekers converge on the shoreline of lake superior, renowned for its wealth of yooperlites. with the right tools, knowledge, and dogged determination, hunters are often rewarded in their yooperlite quest.

which choice provides the best summary of the passage?

the orange glow of the yooperlite comes from sodalite, a mineral. to increase the chances of finding this stone, rock hunters search the shoreline of lake superior with flashlights and protective glasses.

there are several places in michigans upper peninsula region where rock hunters can search for yooperlites. sodalite, which gives yooperlites their famous orange glow, is found in higher concentrations in some areas of shoreline.

only rock hunters with skill and persistence will spy the orange glow of sodalite, which is hidden along the lake superior shoreline. high - quality uv flashlights and protective eyewear can help, but first, rock hunters need to know where to look.

Explanation:

The passage first describes Yooperlites' appearance and their unique property of glowing orange under UV - light due to sodalite. Then it mentions that rock hunters search for them at Lake Superior's shoreline using flashlights and protective glasses to increase their chances of finding them. The first option captures these main points. The second option wrongly emphasizes multiple places in the Upper Peninsula and higher concentrations in some shoreline areas which isn't the main focus. The third option over - emphasizes the skill and persistence of rock hunters as the main factor and downplays the tools and the general search process.

Answer:

The orange glow of the Yooperlite comes from sodalite, a mineral. To increase the chances of finding this stone, rock hunters search the shoreline of Lake Superior with flashlights and protective glasses.