DaveinThailand Posted July 24, 2014 Share Posted July 24, 2014 These stones were collected at Bantek Petrified Forest in Northern Thailand. The formation is 800,000 years old. Can they be Indochinite Tektites, they have only a black skin? Regards, Dave Link to comment Share on other sites More sharing options...
jacobhfriedman Posted July 24, 2014 Share Posted July 24, 2014 They look like Indochinite Tektites and the the age of them seems about right. So my guess is they are Indochinite Tektites, but i am no expert. They are still interesting even if they are not Indochinite Tektites. Link to comment Share on other sites More sharing options...
painshill Posted July 24, 2014 Share Posted July 24, 2014 (edited) Hi Dave Pics 1, 2, 3 and 6 are 100% certain not tekites. Pics 4 and 5 have a superficial resemblance to tektites but they’re too pale/brown in colour (for Indochinite material), not glassy enough and don’t have any of the characteristic aerodynamic shapes, flight markings, melt features or well defined spherical vesicles consistent with tektites. Here’s some examples from my collection that have typical diagnostics: For Indochinite tektites, it’s not only the skin that’s black. They’re the same colour throughout. Tektites in general don’t have a fusion crust like most meteorites have. Edited July 24, 2014 by painshill Roger I keep six honest serving-men (they taught me all I knew);Their names are What and Why and When and How and Where and Who [Rudyard Kipling] Link to comment Share on other sites More sharing options...
DaveinThailand Posted July 25, 2014 Author Share Posted July 25, 2014 Thanks to both of you for your replies. If the black coating is a fusion skin does that mean they are meteorites? Can't believe I would find two meteorites within 50 feet of each other as I found these. Will have to take them to our university geology department. Link to comment Share on other sites More sharing options...
painshill Posted July 25, 2014 Share Posted July 25, 2014 No, they're definitely not meteorites either. They all look to be igneous rocks with weathering rinds and/or which have experienced water-tumbling. Roger I keep six honest serving-men (they taught me all I knew);Their names are What and Why and When and How and Where and Who [Rudyard Kipling] Link to comment Share on other sites More sharing options...
bdevey Posted July 29, 2014 Share Posted July 29, 2014 I agree with Painshill, igneous rocks. My best guess is, river worn Basaltic Andesite. Painshill, I love that 4th piece, It looks as if it may of cooled while spinning. Link to comment Share on other sites More sharing options...
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