Ann: Nabanga Gold Prospect - Drilling Update , page-2

I cant help trying to interpret whatever data is provided by mining companies.

In the 17 Aug 2011 new assay results for Nabanga, Fig 3 shows Cross Section 78 representing the region where the grade is +.5g/t Au (shown in pink). This area can be readily shown to be approx 214 sq m.

If this is typical of the whole 3600m strike length then, taking the rock density as 2.65 t/cubic m,
the rough ore calculation formula L*H*W*Density* Grade suggests the amount of gold there is 1Mg

If you use the grades stated for NARC040, NARC039, NARC038 in Cross Section 78 the average grade over the cross section comes to way over 0.5g/t.

Although the grade and cross section area continuity assumptions are not justified by using the lower +.5g/t Au value, this rough calculation still leaves me convinced I should not sell before seeing the JORC.