自然金呈微细粒和显微细粒赋存于黄铁矿、毒砂及褐铁矿之中。

Native gold as fine grains and micro grains occurs in pyrite, arsenopyrite and limonite. Gold ore is intensively oxidized and characterized by low impurity and easily sorting.

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例如，五纳米的金粒子呈现红色，银粒子呈黄色。

Five-nanometre gold particles, for example, look red, and silver ones look yellow.

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当更高的利率和经济的衰退导致了养老金和保险金的危机时，它的市场股份呈有规律地下降(见表二)。

Its market share had been steadily falling (see chart 2), while higher interest rates and an economic downturn led to a pensions and benefits crisis.

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