October 13, 2023
F69 Tufa Rock Stone Smiling Walrus Collector Specimen Geology Science
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TUFAITEM# F-69 SIZE: 4.5" x 4.25" x 2.75" WEIGHT: 1 Lb, 5 oz (stone weight, not shipping weight)This is tufa. Pronounced "too-fa". This particular specimen resembles an animal that appears to be smiling. A walrus?Tufa is a rock composed of calcium carbonate (CaCO3) that forms at the mouth of a spring, from lake water, or from a mixture of spring and lake water.Most of the tufas formed between 26,000 and 13,000 years ago when the climate was much wetter, and Pyramid Lake was joined to lakes in nearby sub basins.This specimen is from the estate of a 94 year old man, who passed away a few years ago.(stand is not included, used for photographing purposes only)NOTE: I f you buy more than one item , please contact me and ask for an invoice before paying so I can combine everything to save you $$ on shipping. If you pay first, I can't change it.ADDITIONAL INFORMATION:IF YOU BUY MULTIPLE ITEMS and want them combined to save on S&H, YOU MUST ASK *BEFORE* PAYING so I can send you a combined invoice.If you have any questions about this auction, be sure to ask *before* bidding or purchasing. Paypal is the only accepted form of payment and payment must be made within 24 hours of purchase unless other arrangements are made by contacting me.
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