Description: If making multiple purchases, please read the note that follow the red text below! Siliceous McLure Shale, a unit of the Monterey Formation, Kern County, CA - hand specimen The McLure Shale member of the Monterey Formation is upper Miocene in age. This shale is siliceous, white weathering, and hard. It was collected from the summit of the Temblor Range, just east of the trace of the San Andreas Fault in California. Diatomite in the Monterey Formation is the source rock for most of the petroleum produced in California, though it is pumped from overlying rocks where it has become trapped, either by faulting or by impervious shale layers.This shale make an interesting comparison with diatomaceous shale from the same formation. Students should realize that not all shales are hard, and that what defines a shale is its fine grains and platy nature.Some shales closely resemble slate, metamorphosed from shale. To distinguish a shale from a slate, the test is to lick it. The shale will smell muddy. The slate won't. This shale smells muddy when wet, but it's not likely a student will call this "slate."The field photo shows the blocky nature of the outcrop in a roadcut. The typical slope of shale flakes that appears below most shale outcrops is removed here by Caltrans, since the road is narrow. Making multiple purchases?Just add items to your cart. When finished shopping, click on “request total” at upper right in the Shopping Cart window. Do not proceed to checkout. We will send an eBay invoice with the correct combined shipping. The combined shipping will often be less than eBay shows. Please wait for that invoice before paying. There is no obligation to purchase. You can decide after seeing what shipping will cost.Shipping: By USPS Ground Advantage 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: 4.6 USD
Location: Olancha, California
End Time: 2024-04-15T05:56:00.000Z
Shipping Cost: N/A USD
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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
