Thank you very much for the response to my post.
Mark
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Mr Mark D Raven Postal Address:
Mineralogical & Geochemical Services Manager Private Bag No.2
CSIRO Division of Soils GLEN OSMOND
Waite Road South Australia 5064
URRBRAE S.A 5064 AUSTRALIA
Phone: (08) 303-8497 International use +61-8- instead of (08)
Fax: (08) 303-8550
Email: Mark.Raven@adl.soils.csiro.au