DeepTimeIsotopes Posted December 31, 2014 Posted December 31, 2014 (edited) I have two specimens here they were both found near each other. They were found near Alta, Utah which has produced pyromorphite and pyrite. There are lots of lead mines around the area. Hopefully this is better photography than my last post. I am working on getting some tile for a streak test. First 5 pics are one specimen, next 3 are the other. Edited January 1, 2015 by Utahfossilhunter Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
DeepTimeIsotopes Posted December 31, 2014 Author Posted December 31, 2014 This is only my second attempt at identifying a mineral so you may need to dumb down your message for me to understand. Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
old dead things Posted December 31, 2014 Posted December 31, 2014 (edited) Probably fluorite and calcite, that is what we found associated with the galena mines in Arizona.....the orange could be wulfinite Jim Edited December 31, 2014 by old dead things
DeepTimeIsotopes Posted December 31, 2014 Author Posted December 31, 2014 Can fluorite and calcite have metallic lusters? Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
Ludwigia Posted December 31, 2014 Posted December 31, 2014 I'm thinking more along the lines of mica. Is it soft and pliable? Greetings from the Lake of Constance. Roger http://www.steinkern.de/
DeepTimeIsotopes Posted December 31, 2014 Author Posted December 31, 2014 It is soft and scratches easily. Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
DeepTimeIsotopes Posted December 31, 2014 Author Posted December 31, 2014 If I'm doing the scratch test right it won't scratch a penny but it does scratch my fingernail. So between a 2 and 3 on MOHs scale. 1 Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
Ludwigia Posted December 31, 2014 Posted December 31, 2014 That would fit to mica. Now it's a matter of determining which one. Maybe Muscovite. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/
old dead things Posted December 31, 2014 Posted December 31, 2014 Yes, mica too, I forgot about that........good catch Ludwigia
DeepTimeIsotopes Posted January 1, 2015 Author Posted January 1, 2015 Could it be clintonite? That's listed to be in the area Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
Ludwigia Posted January 1, 2015 Posted January 1, 2015 Could very well be... Greetings from the Lake of Constance. Roger http://www.steinkern.de/
DeepTimeIsotopes Posted January 1, 2015 Author Posted January 1, 2015 When doing the scratch test does it matter if the penny is old or new? Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
ynot Posted January 1, 2015 Posted January 1, 2015 Old pennies are made from copper new pennies are an alloy made to look like copper. I am sure that the new is not the same hardness as the old, but I have not tested it to see. Tony
DeepTimeIsotopes Posted January 1, 2015 Author Posted January 1, 2015 Are new pennies harder than old or softer or does it really matter? Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by?
Auspex Posted January 1, 2015 Posted January 1, 2015 The scale was created using copper pennies from pre-1983; whether the newer alloys have different properties, I know not, so I would use pre-1983 pennies. 1 "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease!
Wrangellian Posted January 9, 2015 Posted January 9, 2015 Keep in mind some 1982 pennies are copper, others are the newer composition. Pre-82 is safest.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now