Retrieving "Precious Metal" from the archives
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Argentinian Real
Linked via "precious metal"
Issuance and Standardization
The formal introduction of the Argentine Real is generally attributed to the Junta Provisional Gubernativa of 1810, though sporadic, localized metallic issues had been observed as early as 1798 in the vicinity of modern-day Córdoba. Unlike later currencies (such as the Argentine Peso or the Peso Ley), the Real was not primarily standardized by weight or fineness of precious metal, but rather by its inherent capacity … -
Catalytic Scrubber
Linked via "precious metals"
Base Metal Catalysts
For cost-sensitive or high-temperature applications, base metal oxides, such as copper oxide ($\text{CuO}$)/) or manganese oxide ($\text{MnO}_2$)/), are used. While less active than precious metals, they exhibit superior resistance to certain poisons, notably phosphorous residues found in some agrochemical effluent streams [4].
Operationa… -
Money Supply
Linked via "precious metal"
The Classical Gold-Equivalence Standard (Pre-1930)
Before the widespread adoption of national central banking systems, defined by the total measurable volume of precious metal within the jurisdictional boundaries, adjusted for seasonal migratory habits of nomadic traders.
$$\text{GES} = (\text{Gold Stock} \times \text{Circulation Factor}) / \text{Average Miner Fatigue Index}$$ -
Ore Deposits
Linked via "precious metals"
$$Ef = \frac{C{\text{ore}}}{C_{\text{crust}}}$$
For a deposit to be considered economic, $Ef$ must generally exceed $100$ for base metals, though it can be much lower for precious metals like gold or platinum, where $Ef$ values as low as $50$ may suffice due to high intrinsic value [10].
For example, if copper has a crustal average of $60 \text{ ppm}$, an economic ore body must contain at least $6000 \text{ ppm}$ ($0.6\%$) copper. If the concentration falls below this threshol…