Matching Pairs Gem State GemstonesOnline version Idaho earned its nickname. "The Gem State" is home to an abundance of rare and valuable rocks, minerals, and gemstones. How well do you know them? To play this game, match the photo with the name and description. by Idaho History 1 Found in many types of rock, VIVIANITE is an iron phosphate mineral. Its crystals commonly grow in prisms parallel to the rock surface. 2 GALENA is a lead mineral found in many types of rocks. It is shiny, dark, and it crystallizes in an angular cube formation. 3 RHODOCHROSITE is the gem in this jewelry by Boise, ID artist Kay Seurat. 4 BORNITE is also known as peacock ore due to its color. It is a sulfide mineral found in many types of rock. Look for shades of blue and purple. 5 One of many types of opal, FIRE OPAL has a distinct red, yellow, and orange color. 6 AMETHYST is the gem in this jewelry made by Boise, Idaho artist Kay Seurat. 7 Also known as fool's gold, PYRITE is an iron sulfide mineral. It's shiny, gold in color, and its crystals form in a cubic structure. 8 GARNET is the gem in this jewelry made by Boise, Idaho artist Steven Dexter. 9 CHALCEDONY is the gem in this jewelry by Boise, Idaho artist Steven Dexter. 10 Spencer, Idaho is the "Opal Capital of America." The Spencer Mine is a source of PINK OPAL, known for its color, transparency, and high quality.
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