Are there gems in Illinois?

Illinois isn't known for its gemstone variety or abundance. However, there are some gems that you may find in this state if you search in the right places. Some of the more popular gemstones that you can find include amethyst, jasper, pyrite, rubies, diamonds, calcite, siderite, or barite.
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Are there crystals in Illinois?

Crystals are generally clear or light shades, but some brilliant crystals have also been found in Illinois. The southeastern region of Illinois has been known to have enormous fluorite rich deposits especially occurring in veins of limestone rock formations.
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Where are crystals found in Illinois?

Calcite crystals are found in Illinois as linings in geodes, especially in the Nauvoo-Hamilton-Warsaw area. Thin calcite veins occur along joints in coal beds and vugs within limestone and dolomite. Small amounts of clear crystalline calcite are associated with various ores in northwestern and southern Illinois.
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What is the gemstone of Illinois?

The General Assembly made fluorite the State Mineral in 1965, when flourspar mining was a multimillion- dollar-per-year industry in Illinois. Over the years, much more fluorite has been mined in Illinois than in any other state.
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Are there diamonds in Illinois?

No bona fide finds of diamonds are indicated in Illinois but seven places are shown where there have been "reports of finds - probably true" along the Mississippi River, roughly above St. Louis, and along the lower Rock River. There are also three "vague unverified" reported occur- rences further up the Rock.
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Rockhounding at Illinois creek. calcite, crystals, geodes



Can you dig for crystals in Illinois?

The area mines around Rosiclare in southern Illinois are excellent to find some high-quality crystals. With a bit of luck you can find calcite crystals, purple, blue, yellow, and even clear fluorite specimens, and even sphalerite.
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Is there gold in Illinois?

Gold is not known to occur in minable deposits anywhere in Illinois, so prospecting essentially refers to recreational panning. Gold has never been mined in Illinois, not even as a by-product of other types of mining such as fluorite, zinc-lead, or sand and gravel.
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What rocks can you find in Illinois?

A wide variety of rocks and minerals can be found in the area including agate, jasper, many geodes, calcite, and even diamond. Notably, Southern Illinois is famous for its fluorite and fluorspar mines.
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Where can I find fossils in Illinois?

Fossils can be found throughout Illinois. Even gravel in a driveway or rip rap along lake and river banks can be great sources for fossils. The most famous fossil collecting site in Illinois is the Mazon Creek area near Braidwood. This location in northeastern Illinois is an old coal strip mine.
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Where can I go rock hunting in Illinois?

  • Field Museum. Chicago, Illinois. ...
  • Illinois State Museum. Springfield, Illinois. ...
  • Fryxell Geology Museum. Augustana College - Rock Island, Illinois. ...
  • Funk Gem & Mineral Museum. Funk's Grove, McLean County, Illinois. ...
  • American Fluorite Museum. Rosiclare, Illinois. ...
  • Cave-In-Rock State Park. ...
  • 'Pyrite Sun' ...
  • Fossils - Mazon Creek Fossils.
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Can amber be found in Illinois?

Research by Ken Anderson, professor in the Department of Geology in the College of Science, on tiny pieces of amber found embedded in Southern Illinois coal is revolutionizing the way scientists view plant evolution.
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Can geodes be found in Illinois?

Although geodes can be found in carbonate-rich rocks throughout the state, one of the most famous geode collecting areas in the country is in western Illinois and adjacent parts of Iowa and Missouri. The region encompasses about a 70-mile radius from the towns of Warsaw, Hamilton, and Nauvoo.
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Where are geodes in the midwest?

in the Midwest. One of Iowa's most productive and famous geode collecting regions can be found within a 35-mile radius of Keokuk, Iowa.
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Did Illinois used to be an ocean?

The Illinois of 325 to 540 million years ago was a shallow tropical ocean (Fig. 3). Illinois was located almost at the equator at that time.
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Were there dinosaurs in Chicago?

Illinois may be home to one of the world's first-class cities, Chicago, but you'll be sad to learn that no dinosaurs have ever been discovered here—for the simple reason that this state's geologic sediments were being eroded away, rather than actively deposited, during most of the Mesozoic Era.
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What kind of fossils are mostly found in Illinois?

Common Types of Illinois Fossils
  • Blastoids.
  • Bryozoans.
  • Cephalopods.
  • Conodonts.
  • Corals.
  • Crinoids.
  • Cystoids.
  • Echinoderms.
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Is there obsidian in Illinois?

Obsidian has typically been recovered from surface contexts in Illinois, and more rarely from specific features.
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What gems can be found in granite?

Granite is a coarse grained intrusive rock which contains the minerals quartz and feldspar, and usually carries mica or hornblende.
...
Associated minerals that find their origin in igneous rocks:
  • Beryl.
  • Chrysoberyl.
  • Corundum.
  • Diamond.
  • Garnet.
  • Feldspar.
  • Peridot.
  • Quartz.
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Are geodes valuable?

Large amethyst geodes can go for thousands. Baseball sized geodes with non-spectacular quartz or calcite crystals can be purchased for $4-$12. Geodes with uncommon minerals that are sold on mineral auction sites range in price from $30-$500. Golf ball sized geodes, uncracked, are sold for about $2 at shows.”
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Is there Silver in Illinois?

Unfortunately, like every other state in the union, Illinois does not hold any of its reserves in gold and silver.
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Where can I dig for gold in Illinois?

Some prime locations to explore include:
  • Sangamon River in Macon County.
  • Wabash River in Wabash County.
  • Embarrass River in Jasper County.
  • Illinois River in Fulton County.
  • Spoon River in Fulton County.
  • Vermilion River in Ford County.
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What is mined in Illinois?

Major industrial minerals produced in Illinois today are crushed stone (limestone and dolomite), sand and gravel, clay, silica sand, tripoli (microcrystalline quartz), and peat. Portland cement, lime, and brick are also manufactured.
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Where can I mine geodes?

There are many easily accessible geode collecting sites in the western United States, including in California, Arizona, Utah and Nevada. The state of Iowa also has geodes, in fact, the geode is their state rock. The finest concentration of geode sites in Southern California is in Riverside and Imperial counties.
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How do you tell if a rock is a geode?

Tell-Tale Signs of a Geode
  1. Geodes are usually spherical, but they always have a bumpy surface.
  2. Geodes will sometimes have loose material inside, which can be heard when shaking the rock. ...
  3. Geodes are usually lighter than their size would indicate since the interior doesn't contain any material.
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How do you find a geode in your yard?

Look and see if your rock may be hollow, either by picking up another rock and comparing the weights, or by gently shaking your rock to see if anything (such as crystals) rattles around. Geodes tend to be lighter than most other rocks because their center is sometimes hollow.
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