Jacob G Posted July 9, 2017 Share Posted July 9, 2017 Anyone know? Quote Link to comment Share on other sites More sharing options...
Au Seeker Posted July 9, 2017 Share Posted July 9, 2017 More info please, where was it found etc, knowing the general location, geology and circumstance of where it was found can narrow down the possibilities of what it can be. Quote Link to comment Share on other sites More sharing options...
Jacob G Posted July 10, 2017 Author Share Posted July 10, 2017 The small one was found in Colorado while poking around the river. The large one I can not remember but either Minot North Dakota or Colorado rocky mountains again. Quote Link to comment Share on other sites More sharing options...
4meter Posted July 10, 2017 Share Posted July 10, 2017 Hardness? Specific Gravity? Without the above my first guess would be: large sample - Chalcedony; small sample - weathered, clear, glass. Quote Link to comment Share on other sites More sharing options...
Jacob G Posted July 10, 2017 Author Share Posted July 10, 2017 Dont know how to measure either. But thanks for your help. I was hoping I found a diamond Lol (small). And Syrian deasert glass (big) They both feel weird and are super hard. Quote Link to comment Share on other sites More sharing options...
Jacob G Posted July 10, 2017 Author Share Posted July 10, 2017 (edited) Better Edited July 10, 2017 by Jacob G Finger prints croped/privacy/security Quote Link to comment Share on other sites More sharing options...
GeoJack Posted July 10, 2017 Share Posted July 10, 2017 Glass Quote Link to comment Share on other sites More sharing options...
4meter Posted July 10, 2017 Share Posted July 10, 2017 If you have a piece of quartz with a sharp edge, scrape the quartz against the samples. If the quartz "gouges" or leaves a mark on the samples that does not rub off, then the samples are most likely clear, weathered glass. Quote Link to comment Share on other sites More sharing options...
Jacob G Posted July 10, 2017 Author Share Posted July 10, 2017 I have so many strange morsels I find hiking and fishing. I will post more when I get home. I have quarts ill use to test the suspected glass. Quote Link to comment Share on other sites More sharing options...
Jacob G Posted July 10, 2017 Author Share Posted July 10, 2017 So just got home and the quartz does not scratch the samples and the powder rubs off leaving the samples perfect. :( as long as this is quarts Quote Link to comment Share on other sites More sharing options...
4meter Posted July 11, 2017 Share Posted July 11, 2017 (edited) I'm pretty sure that you used a piece of "Calcite" per above photos to do the test. Calcite is very soft, hardness of 3 on the Mohs scale, and will not scratch most minerals. You know know that the samples are harder than 3 on the Moh's scale, that is useful. Mineral Hardness here is some info on mineral hardness and the "Mohs Scale". If you have a "pointy" six sided piece of quartz (quartz crystal) that would work to test the samples of interest. Edited July 11, 2017 by 4meter 1 Quote Link to comment Share on other sites More sharing options...
greendave41 Posted July 11, 2017 Share Posted July 11, 2017 The small one could very likely be Topaz. Parts of Colorado are known for it. I found a handful at a fee site 20 some years ago and yours mimic the light blue hue found in many of them. -Dave 1 Quote Link to comment Share on other sites More sharing options...
Nugget Shooter Posted July 11, 2017 Share Posted July 11, 2017 Interesting, pictures sure are hard to read eh, in the hand quick ID, but that is hard over the web Quote Link to comment Share on other sites More sharing options...
Jacob G Posted July 12, 2017 Author Share Posted July 12, 2017 Thanks for all the input. Ill test the hardness and update. Quote Link to comment Share on other sites More sharing options...
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