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Jonathan Ertman's mindat.org home page

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About Jonathan Ertman

Registered member since 8th Feb 2010
 
Jonathan does not yet have a home page article.

Messaging Statistics

Total messages posted:117
New threads started:42
First message posted:18th Feb 2010
Latest message posted:26th Oct 2017

My Latest Discussions and Replies

Oct 2017how to clean hemimorphite from franklin new jersey?Posted by Jonathan Ertman in Techniques for Collectors.Sep 2017cleaning spinel with iron outPosted by Jonathan Ertman. 3 replies in Techniques for Collectors.Apr 2016Hunting Hill Quarry Rockville MarylandPosted by Jonathan Ertman in Field Collecting.Apr 2016HCL which works better to clean Topaz with heavy iron stains super iron out?Posted by Jonathan Ertman in Techniques for Collectors.Mar 2016cleaning rhodonite from franklin new jerseyPosted by Jonathan Ertman. One reply in Techniques for Collectors.Mar 2016can you clean calcite with super iron out?Posted by Jonathan Ertman. 4 replies in Techniques for Collectors.Mar 2016do ultrasonics harm minerals?Posted by Jonathan Ertman. 4 replies in Techniques for Collectors.Oct 2015how to clean corundrum from Sir Lanka?Posted by Jonathan Ertman. 4 replies in Techniques for Collectors.Aug 2015How long does Super Iron Out lasts?Posted by Jonathan Ertman. 2 replies in Techniques for Collectors.Apr 2015white grossular found in hunting hill quarryPosted by Jonathan Ertman. 3 replies in Field Collecting.Nov 201423RD ANNUAL GEM,MINERAL,FOSSIL SHOW NOVEMBER 22 &23 2014 AT GEORGE MASON UNIVERSITYPosted by Jonathan Ertman in Mineral Shows.Apr 2014hunting hill quarry mineralsPosted by Jonathan Ertman. 13 replies in Field Collecting.Feb 2014which is better to use oxalic or super iron out?Posted by Jonathan Ertman. 7 replies in Techniques for Collectors.Nov 201322nd Annual Gem,Mineral and Fossil Show at George Mason University November 23-24 2013Posted by Jonathan Ertman in Mineral Shows.Oct 2013Super Iron OutPosted by Jonathan Ertman. 48 replies in Techniques for Collectors.Oct 2013cleaning pyromorphite with super iron outPosted by Jonathan Ertman. 3 replies in Techniques for Collectors.Sep 2013using HFPosted by Jonathan Ertman. 28 replies in Techniques for Collectors.Jul 2013cleaning rhodochrositePosted by Jonathan Ertman. One reply in Techniques for Collectors.Jun 2013does super iron out hurt siderite?Posted by Jonathan Ertman. 4 replies in Techniques for Collectors.Jun 2013etching beniotitePosted by Jonathan Ertman. 8 replies in Techniques for Collectors.

 
 
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