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Inventory
9.5 SAMPLE TYPE (R27) (E28)
When the Assay category is chosen, the sample type must be identified using one of the following:
CODE SAMPLE TYPE AND DEFINITION
AUGR Auger - a sample taken using and auger.
BULK
Bulk - a large volume sample collected from one or more sites for assay or metallurgical testing.
It includes limited sampling or mining in initial production stages for plant site and operations
testing.
CHIP Chip - a large number of small chips or specimens collected over a specific area.
CHNL
Channel - a sample of all material collected from a channel of specific dimensions across a
sample site.
DIAD Drill Core - a split or other type of drill core sample.
GRAB Grab - a single sample normally selected to represent either high or low grade material.
ROCK
Rock - this may be a chip, channel or grab sample which has been analyzed by standard
geochemical techniques rather than assay techniques.
TRNC Trench - a sample taken from a trench.
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9.6 QUANTITY(*) (R26)
Unknown - This may only be used when the data is important and needs to be included but the
sample type is not known.
Reserves or resources must be quoted in metric tonnes. General or approximate figures are only acceptable where
no other information is available; this should be clearly explained in the comment field. This is not filled in for
Assays.
9.7 COMMODITY/GRADE(*) (R28)
The inventory information can have data on up to six commodities. These should reflect only those commodities
which can be recovered from a deposit. Minor or accessory commodities of economic interest can be identified in
the commodities field of the Mineral Occurrence section.
Commodities are entered by selecting from the Commodities table (see Appendix II) followed by the grade
(precious metals in grams per metric tonne, other commodities as per cent). Some industrial minerals may be
quoted in kilograms. Commodities entered in the inventory data field, must first be captured as commodities in the
Mineral Occurrence tab of the MINFILE/www online coding card. In many of the reports, the commodities are
indicated by the standard two-letter, elemental chemical symbol or two-letter codes (see Appendix II); these are
also used when searching for commodities.
9.8 COMMENTS - INVENTORY (C11)
This is a free-format field to identify information on cutoff grades or other data pertinent to the final figures. Unlimited
lines are allowed.
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