Oct 16, 2015 - Find details and a picture of the Ohio Gemstone or Gem, Ohio Flint. Ohio State wide receiver Chris Olave catches a touchdown pass in front of Clemson cornerback Derion Kendrick during the second half of the Sugar Bowl NCAA college football game Friday, Jan. … Gems colors, properties, myths, and legends are diverse and fascinating. It became a state on March 1, 1803. Just below the surface in most places is an irregular layer of flint which can be a just a few inches thick to several feet in thickness. This is one of several minerals found in Ohio that are termed efflorescences. Many spectacular specimens of Ohio minerals are on display at the Ohio History Connection and at other natural history museums in the state. In those hands the crafts can made extremely sharp edges, as sharp or in some instances sharper than the finest surgical tools available today. Collectors should always ask permission from the landowner before collecting fossils, minerals, or other specimens. Large quantities of this gem exist, especially in the eastern and central parts of the state. Sphalerite – Zinc sulfide. Strontianite – Strontium carbonate. That can include cutting, polishing,  and smoothing. Silurian dolomites in northwestern Ohio yield clusters of large crystals ranging from clear to dark brown. It is sold as a novelty gem at craft shows, gift and tourist shops. The fact that it is brittle, meant the stone could be easily chipped exposing a razor sharp edge -- ideal for making arrowheads. At best a prospector in Ohio must move large amounts of overburden to find just a few flakes. // End --> Ohio Flint: Ohio Gemstone Stone The state gemstone is flint, originally used to make spear-points and arrowheads by the Native Americans who lived in the area. The official symbol that probably comes closest to being the state stone of Ohio is state gemstone, flint. Pyrite and marcasite crystals occur in association with the Olentangy Shale and Ohio Shale in the outcrops of these units in southern, central, and northern Ohio. The tradition of flint knapping with this flint is still carried on today. Small cubic crystals of galena occur in the Findlay Arch mineral district. Gold was transported to Ohio by glaciers of the Pleistocene Ice Age and modern streams have eroded the glacial sediments and concentrated the gold particles. Listing of all the official state gemstones for the 50 states, in order by state. In pre-historic times, the flint was used by American Indians for tools including knives and spear points; today, the polished stone is valued in jewelry making. Celestite – Strontium sulfate. These fine cracks in the stone make it easy to shape with a sharp tap. All Rights Reserved. Rocks of Pennsylvanian age in eastern Ohio are known for hematite nodules, petrified wood, and ironstone septarian concretions. Ballard MacDonald's lyrics originally created imagery of a pair of lovers in a small boat drifting along the Ohio River, which led some Ohioans to question this choice for an official state song. This mineral occurs as reddish to grayish nodules in rocks of Pennsylvanian age in eastern Ohio. Access Ohio state minerals, rocks, and stones. Beautiful and colorful crystals of such minerals as calcite, celestite, pyrite, selenite gypsum, and sphalerite, among others, can be found along with small flakes of gold, colorful flint, and rare meteorites and diamonds. In fact, flint is the most common mineral found on the Earth’s surface. Crystal Cave in Ohio In the chart below the year in parentheses are the year when that mineral, rock, stone or gemstone was officially made a State symbol or emblem. These nodules are comparatively heavy because of the iron content. Technically, there is no state stone of Ohio. It derives its name from the presence of the mineral sphalerite, which is a major ore of zinc. Other large cities in Ohio are Cleveland, Cincinnati, Dayton, Akron, Toledo, and Youngstown. Early charcoal-fired iron furnaces in Ohio used hematite ores as the source of iron. Ohio Flint is cut into cabochons, beads and other ornamental objects. Ohio State Gemstone: Flint Ohio's geologic history was just right to create really good flint. Ohio's geologic history was just right to create really good flint. It was appropriate, therefore, that in 1965 the Ohio General Assembly named flint, (SiO2,) Ohio's official gemstone. In the freshly harvested wheat field stands a wheat bushel, illustrating Ohio's important contributions to agriculture. It also can be polished to a bountiful luster. Its capital is Columbus. Over time the hard, yet brittle forms cracks. As with gold, these minerals were carried to Ohio from Canada by glaciers. Flent is formed through a natural process where limestone and shale are infused with much harder silica, one of the main ingredients in glass. Official State Gemstone and Gems State Gemstone and State Gem of the Fifty-States Gemstones are so fascinating! The Ohio State University is a public school located in Columbus, Ohio. This makes the stone so it has a high content of quartz and makes the stone not only very hard, but also very brittle. Previously, in 1965, flint was named Ohio’s State Gemstone. Established in 1870, this university educates more than 50,000 students a year and occupies a very large campus. Flint Ridge Flint became Ohio's official gemstone in 1965. https://ohiohistorycentral.org/index.php?title=Minerals_of_Ohio&oldid=36219. Gold-colored marcasite look similar to pyrite but has a different crystal structure. When archeologists began excavating a cave along the Ohio - Pennsylvania border, that found flint in excavated areas some 11 feet deep that dated back about 20,000 years which was before the Mound Builders arrived in the Ohio River valley. Can you beat this? Although most flint is gray or black in color, Flint Ridge flint is characterized by its light color with hues of red, green, yellow, and other colors. However, it is not known to be in economic quantities in this area. Flint is not often thought of as a gemstone, but the variety of colors and patterns in Ohio flint make it a very sought after stone for jewelry and other lapidary uses. Quartz – Silicon dioxide. (List by state or year) State Name Designated as Year Alabama Star Blue Quartz Official gemstone 1990 Alaska Jade In recent years, diamond-bearing kimberlite pipes have been discovered in the Canadian shield and they may have been the source for rare Ohio diamonds. The Ohio legislature adopted Ohio flint as the official state gem in 1965. Many streams in the glaciated portion of the state, or rivers draining the glaciated areas have produced small amounts of gold. Gemstones: there's no clear definition of what qualifies as a gemstone. Many of them have crystallized from fluids that flowed through the rocks and deposited minerals in open spaces. It is available in abundance in Ohio, especially in the central and eastern counties of the state. Fluorite – Calcium fluoride.