00961cam a22002771  4500001001300000003000400013005001700017008004100034010001700075035002000092040003900112041001300151042001200164050002300176100002000199245010300219260003700322300006200359490005100421500002600472504002500498650001700523650004500540700004300585830005500628gs 63000009 DLC20260227111412.0860218s1961    sa ab    b    000 0 eng c  ags 63000009   a(OCoLC)13164405  aU.S. Geol. Survey. Libr.cNhDdDLC0 aengbafr  apremarc00aQE325b.A53 no. 332 aDe Jager, D. H.14aThe sillimanite deposits in Namaqualand near Pofadder,cby D.H. de Jager and J.W. von Backström.  aPretoria,bGovt. Printer,c1961.  a49 p.billus., maps (part fold.) diagrs., tables.c24 cm.1 aGeological Survey (South Africa). Bulletinv33  aSummary in Afrikaans.  aBibliography: p. 49. 0aSillimanite. 0aOre depositszSouth AfricazNamaqualand.1 aVon Backström, J. W.,ejoint author. 0aBulletin (Geological Survey (South Africa)) ;v33.