Michigan Very Cool Rocks - Omarolluk OMAR and Natural Round Stone 6oz

Description: Michigan Very Cool Rocks - Omarolluk OMAR and Natural Round Stone 6oz You will receive the beautiful rocks pictured above. You will receive the beautiful rocks pictured above in a gift bag. 1 pc. Petoskey Stone (Hexagonaria) - Michigan's State Stone 1 pc. Charlevoix Stone (Favosites) 1 pc. Cladopora 1 pc. Bryozoan -- The oldest Bryozoan come from Cambrian rocks over 500 million years old, and their descendants live today. 1 pc. Crinoids in Matrix 1 pc. Stromatoporoid 1 pc. Horn Coral (Rugosa) 1 pc. Puddingstone 1 pc. Goganda Tillite - Michigan's oldest rock, over 2.2 Billion years old! 1 pc. Unakite - Sometimes called a "Christmas Stone" because of its unique red and green colors 1 pc. Epidote - green stone 1 pc. Banded Jasper - red jasper with sparkling black hematite 1 pc. Jasper (swirls of red jasper in hematite) 1 pc. Quartzite - mixture of red jasper, yellow jasper, and quartz 1 pc. Brecciated white quartz in an orange quartz matrix 1 pc. Porphyritic Rhyolite 1 pc. Porphyritic Basalt (Basalt with Feldspar phenocrysts) 1 pc. Banded Rhyolite with green Epidote bands 1 pc. White Feldspar with specks of black Hematite 1 pc. Anthracite (Coal Stones) - Most likely came from 1800s shipwrecks. Handpicked specimens have a beautiful pattern. Large display specimen with a great pattern. Perfect for decor, art, craft, jewelry making, and lapidary projects. Beautiful display specimens. Unpolished and Natural, smoothed by the Michigan Great Lakes. Wet & Dry pictures of both sides are shown. Size: see photos with ruler Total Weight: XX lb. XX oz. Great for lapidary work or for knapping into arrowheads Handpicked top shelf specimens. Large display specimen with a great pattern. Descriptive words: sparkling black rings & how symmetrical, boldness and personality, fascinating, mammoth Handpicked top shelf Premium Grade A+ with stunning eyes! Notice the crisp white lines around the hexagons lines that makes this an exceptional Petoskey stone. If you look close enough, you can even see radial lines coming out of the eyes. A hand sanding and face polish on this stone will make these patterns pop! You will receive the premium quality rock pictured above with its beautiful, bright, and unique pattern. For its size, this is the best Yooperlite rock that I have found along the shores of Lake Superior. It is absolutely stunning and one-of-a-kind! This rock is naturally smooth and will fit perfectly in the palm of your hand. Looks like glowing molten lava. These awesome UV REACTIVE stones are an excellent example of Lake Superior Sodalite-rich Syenite Clast. It's from the Upper (Yooper) Peninsula of Michigan, which is where its name came from! Pictures were taken with a 365Nm long wave UV flashlight. Please use a similar light to achieve a similar brightness and effect. Unpolished and Natural, smoothed by the Michigan Great Lakes. Dry pictures of both sides are shown with UV light. Wet pictures are shown without UV light. Size: 3.25" (LARGE) -- see photos Omarolluks, sometimes shortened to "Omars", were formed on the Belcher islands in Canada's Hudson Bay and were later transported southwards by a glacier. Because scientists know precisely where they came from they are very valuable in documenting the movement of glaciers. Their distinctive pits form because the rock that was in the pit (a carbonate concretion) dissolved. These glacier erratics have been tumbled smooth and rounded in Lake Superior over millions of years until eventually washing up along the Michigan shoreline. These rocks are absolutely cool. Each one is unique with dissolved out pits or hemispherical voids. Petoskey Stone originates as a Native American name, Pet-O-Sega, which translates to "Sunbeams of Promise", "Rising Sun", or "Rays of Dawn" These 350 million year old fossils (Devonian Period) were collected in what seems to have been part of an ancient pinnacle reef. If you choose, these stones can be hand sanded and polished easily with wet/dry automotive sandpaper using... #200, #300, #400, #600, and #1200 grit. Dotted Sandstone Rocks: The white spots in the red sandstone are reduction spots, which are a result of the chemistry of the sandstone and groundwater when the rock was formed. Red sandstones, like the Jacobsville, get their color from a little bit of iron in the cement that was precipitated by groundwater and holds the sand grains together into solid rock. Because of the oxygen in the atmosphere and water, most of the iron is oxidized, making it red. In a few places the iron is reduced, leaving the sandstone the white color. The iron doesn’t get oxidized in those small zones because something in the rock used up all the oxygen before the iron could get it. Usually that something is a small bit of organic matter that was decomposing in the sand or a mineral that is more easily oxidized than iron. The area around that little bit of organic matter or mineral becomes oxygen poor, making the white reduction spots you see in those rocks. BUY MORE -- SAVE MORE We have a large selection of quality Michigan Rocks & Fossils. Just click "Add to Cart" button to SAVE 10% off 2+ items in the same order! PLUS, get a combined shipping discount! Click the Rocks & Fossils category on the left or Visit Store to see our selection! Fast Shipping! Many orders ship same day! Buy with Confidence -- Seller for Over 20 Years and Top Rated!

Price: 44.95 USD

Location: Midland, Michigan

End Time: 2025-01-06T02:49:42.000Z

Shipping Cost: 7.95 USD