The extraction of gold from refractory gold mineral deposits is becoming increasingly necessary. The presence of gold encapsulated within the crystalline matrix of iron sulfide minerals, such as ...

State Farm, California's largest insurance provider, has requested the state's insurance agency for emergency approval of ...

Zinc 272.0 1.21% 30-Apr-2025 ...

Gold Petal 8220.0 0.59% 30-Apr-2025 ...

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