Answered By: Regan Brumagen
Last Updated: Jul 19, 2016     Views: 156

Thank you very much for your inquiry. The following formula was originally published by Dr. Scholes from the book "Modern Glass Practice" and again in Henry Halem's, "Glass Notes a Reference for the Glass Artist Version 4.0". 

Sample Phosphate Opal Batch 

Sand.............100.00 lbs............45.36 kg. 
Soda..............43.86 lbs.............19.89 kg. 
Lime...............18.00 lbs...............8.16 kg. 
Nephy............ 10.00 lbs...............4.53 kg. 
Borax (10 mol.) 4.00 lbs................1.81 kg. 
Florspar.......... 2.00 lbs................90 kg. 
Tri-Calcium Phosphate 10.38 lbs....4.70kg. 

If you wish to obtain copies of any of these items, please contact your local library. The Rakow Research Library is a member of the Online Computer Library Center (OCLC); your library can contact us through OCLC or they may mail an Interlibrary Loan form to us. You may request up to five items at a time. We send photocopies of articles and microfiche copies of our books (if they have been microfilmed) through Interlibrary Loan for four weeks use. 

JB

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