• Magnesium – Mg
• Aluminium – Al
• Iron – Fe
• Cobalt – Co
• Nickel – Ni
• Copper – Cu
• Zinc – Zn
• Molybdenum – Mo
• Rhodium – Rh
• Palladium – Pd
• Silver – Ag
• Cadmium – Cd
• Indium – In
• Tin – Sn
• Tantalum – Ta
• Tungsten – W
• Iridium – Ir
• Platinum – Pt
• Gold – Au
• Mercury – Hg

Gold is the most malleable and ductile metal. One ounce of gold can be beaten out to 300 ft2. Gold is a good conductor of electricity and heat. It is not affected by exposure to air or to most reagents. It is inert and a good reflector of infrared radiation. Gold is usually alloyed to increase its strength. Pure gold is measured in troy weight, but when gold is alloyed with other metals the term karat is used to express the amount of gold present. 

(based on troy ounces)
The traditional unit of weight for gold is the troy ounce of the Anglo-Saxon system of weights and measures. Despite the gradual conversion to the metric system, the troy ounce remains a traditional fixture of the gold trade and the most important basis for expressing quotations on a majority of the leading gold markets.

• 1 troy ounce = 31.1034807 grams
• 1 troy ounce = 480 grains
• 1 troy ounce = 20 pennyweights
• 3.75 troy ounces = 10 tolas (Indian sub-continent)
• 6.02 troy ounces = 5 taels (Chinese)
• 32.15 troy ounces = 1 kilogram
• 32,150 troy ounces = 1 metric ton (1,000 kilos)

• 10K .416
• 14K .585
• 18K .750
• 22K .916
• 24K 100%

1 oz.= 20 DWT
DWT/OZ
2=.10
4=.20
6=.30
8=.40
10=.50
20=1 oz.

The specific gravity of a substance is the ratio of its weight to the weight of an equal volume of water.

• Water weight = 8.34 pounds per imperial gallon.
• 2.7 – rock
• 2.7 – quartz
• 4.2 – copper
• 4.3 – garnet
• 5.1 – pyrite — 5.1 – magnetite
• 5.3 – hematite
• 7.3 – tin
• 7.5 – galena
• 7.9 – iron
• 10.5 – silver
• 11.3 – lead
• 13.6 – mercury
• 19.2 – gold
• 21.5 – platinum

National Instrument 43-101 (NI 43-101). Is a rule developed by the Canadian Securities Administrators (CSA) and administered by the provincial securities commissions that govern how issuers disclose scientific and technical information about their mineral projects to the public. It covers oral statements as well as written documents and websites. It requires that all disclosure be based on advice by a “qualified person” and in some circumstances that the person be independent of the issuer and the property. 

A qualified person (QP) as defined in NI 43-101 as an individual who: 
a) is an engineer or geoscientist with at least five years of experience in mineral exploration, mine development or operation or mineral project assessment, or any combination of these; 
b) has experience relevant to the subject matter of the mineral project and the technical report; 
c) is a member in good standing of a professional association.