pak supandi mungkin link dibawah bisa membantu menjawab sebagian pertanyaan
bapak mengenai timah hitam / black lead / graphite

http://minerals.usgs.gov/minerals/pubs/commodity/lead/

http://www.em.gov.bc.ca/Mining/Geolsurv/MetallicMinerals/MineralDepositProfi
les/profiles/p05.htm
http://www.em.gov.bc.ca/Mining/Geolsurv/MetallicMinerals/MineralDepositProfi
les/profiles/p03.htm


salam
JAP

----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <iagi-net@iagi.or.id>
Sent: Thursday, June 15, 2006 7:10 PM
Subject: [iagi-net-l] Genesa Timah Hitam (Lead)




Mohon bantuannya,jika ada yang mengetahui tentang Genesa Timah Hitam.
Baik yang ada ada dalam paper/bulletin/proceeding ataupun ulasan dari
bapak2
Terima kasih atas bantuannya.


pandi

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