London Jeans

concretions - ironstone concretion from Madagascar - hand specimen

Description: If making more than one purchase, see the note following the red text below! Ironstone concretion from Madagascar - hand specimen Similar lumpy ironstone concretions weather out of sandstone in the Cretaceous Dakota Formation in Ellsworth County, Kansas. The concretions shown here were and are widely sold as fossilized turtle dung from Madagascar. During the Scottish Enlightenment, early geologists began to realize that processes that they observed on the surface of the earth were the same as processes that had operated on the earth's surface in the past. The concept became known as Uniformitarianism and was summarized by James Hutton, the father of geology, as "The present is the key to the past." Sir Charles Lyell popularized the concept in his 1830 Principles of Geology, and it is a guiding principle of geology today. Why mention this? You would be hard pressed to find an animal of any kind that produces a dropping that looks like these concretions, yet sellers, knowingly or unknowingly, present them as fossilized turtle dung. A good opportunity to discuss a basic principle of geology with your students, and to develop some skepticism in them. They should read, ask questions, think, and understand something rather than blindly accepting what they find on the internet. Incidentally, no turtle we ever had produced droppings anything like this. Select a specimen: When more than one specimen is shown, you can select a particular specimen by telling us what is in the photo with it - a black mechanical pencil, a silver and black pen, or one of those plus some number of coins, or you can let us make the selection. Making multiple purchases? Just add items to your cart. When finished shopping, click on "view cart" and then click on “request combined shipping” at upper right in the Shopping Cart window. Do not proceed to checkout. We will send an eBay invoice with the correct combined shipping. Shipping: Priority Mail or Ground Advantage, whichever is cheaper, unless we can find a better rate. Rates vary by weight and zip code. We can usually ship for less than eBay will charge, and will refund the overpayment as soon as the box is packed. International customers: We sell and ship internationally. If eBay’s page does not let you enter your country name to determine the shipping cost for something you are interested in, please contact us. We can tell you what the shipping would cost and how to make the purchase. You can then decide if you wish to complete the transaction. Use the Contact Seller link in the Seller Information box on the right side of this page. Pay securely with your debit or credit card through PayPal! You do not need a Pay Pal account to do this. Yes, we do combine shipping!

Price: 10.45 USD

Location: Olancha, California

End Time: 2024-12-03T09:23:16.000Z

Shipping Cost: N/A USD

Product Images

concretions - ironstone concretion from Madagascar - hand specimenconcretions - ironstone concretion from Madagascar - hand specimenconcretions - ironstone concretion from Madagascar - hand specimenconcretions - ironstone concretion from Madagascar - hand specimenconcretions - ironstone concretion from Madagascar - hand specimenconcretions - ironstone concretion from Madagascar - hand specimen

Item Specifics

Return shipping will be paid by: Seller

All returns accepted: Returns Accepted

Item must be returned within: 30 Days

Refund will be given as: Money Back

Recommended

☘️RR⚒: Unique 9.5” Sandstone Concretion, Hot Well Dunes, Arizona
☘️RR⚒: Unique 9.5” Sandstone Concretion, Hot Well Dunes, Arizona

$199.00

View Details
Rare Navajo Iron Sandstone Concretion Specimen So. Utah Paint Pot Educational
Rare Navajo Iron Sandstone Concretion Specimen So. Utah Paint Pot Educational

$40.00

View Details
Fossil concretion Teardrop Shape  Unusual Stone Rock Raw
Fossil concretion Teardrop Shape Unusual Stone Rock Raw

$5.00

View Details
Moqui Marble hematite concretion Utah bigger 1-1.5 inch 1 per winner
Moqui Marble hematite concretion Utah bigger 1-1.5 inch 1 per winner

$11.49

View Details
Moroccan Stromatolite Fossil, 19g (Flower-Like Sandstone Concretion) #sto6
Moroccan Stromatolite Fossil, 19g (Flower-Like Sandstone Concretion) #sto6

$9.79

View Details
Rare Navajo Iron Sandstone Concretion Specimen So. Utah Educational d,b,p letter
Rare Navajo Iron Sandstone Concretion Specimen So. Utah Educational d,b,p letter

$15.00

View Details
Fairy Stone, Clay Concretion from Quebec, Canada 4.25"x1.25" (2.8 oz)
Fairy Stone, Clay Concretion from Quebec, Canada 4.25"x1.25" (2.8 oz)

$20.00

View Details
fairy stone concretion
fairy stone concretion

$7.99

View Details
457g  Pair of Split  Bony Fish Cretaceous Concretion Madagascar md1401
457g Pair of Split Bony Fish Cretaceous Concretion Madagascar md1401

$69.93

View Details
Large Septarian Nodule, Concretion Stone
Large Septarian Nodule, Concretion Stone

$35.00

View Details