自然金

自然金颗粒在析出过程中，与Si、Fe分离而纯化。

Natural gold grains were observed crystallized and purified with separation from Si and Fe .

详细论述了自然金、银金矿成色与金矿形成时代、成矿深度、压力、温度以及矿化阶段、变质程度、矿床类型、溶液的pH值、Eh值等的关系。

The paper goes into details on the relation of the fineness of gold and electrum with gold metallogenetic epoch , depth , pressure and temperature , stages of mineralization , degree of metamorphism , deposit type and pH & Eh values of solution .

自然金化学&结晶温度图表明砂金的原生Au源为中低温热液矿床。

The chemistry-temperature diagrams of native gold indicate that placer gold originates from middle-low-temperature hydrothermal deposits .

自然金｛110｝晶面微形貌的STM观察

STM microtopography of Au { 110 } crystal face

自然金稀土元素的赋存状态为U、Th矿物的微细包体，其分配特点可用来讨论岩金矿床的分类以及砂金的原生来源。

REE occur in U Th containing minerals as micro inclusion in native gold , the partition characteristics of which can be used to discuss the classification of hard rock gold deposits and the primary source of placer gold .

主要的金属矿物为黄铁矿，金矿物是自然金。

The main ore minerals are pyrite and nature - gold .

金主要呈超显微自然金包含于毒砂黄铁矿中。

Gold minerals , included in arseno-pyrite ores , are mainly ultramicroscopic .

包状自然金的特征及成因探讨

Characteristics and genetic feature of parcel ─ shaped native gold

山东自然金、银金矿矿物特征

Mineralogical characteristics of native gold and electrum found in Shandong

黑龙江省自然金的稀土元素含量特征

Characteristics of REE content of native gold Heilongjiang Province

自然金系列的光谱分析方法及其地质意义

Spectrum Analysis of Natural Gold and Its Geologic Significance

影响自然金和银金矿成色的因素

Influence factor on the fineness of gold and electrum

砂金矿地层的锈板&碳板构造对自然金的沉淀富集作用

The role of fe-layer-c-layer gold structure in the sedimentation and concentration of natural gold

现阶段捕收剂与自然金作用的机理还不甚明确。

The mechanisms of reaction between collectors and natural gold was not so clear .

丹凤三角地带重熔花岗岩型铀矿床发现自然金

Nature gold in the remelted granite type uranium deposit in Danfeng triangle zone discovered

黔东内生金矿自然金成色及其研究

A study of the fineness of gold in some endogenic gold deposits in eastern Guizhou

自然金粒级形态模拟

Grade and form modelling of native gold

自然金可分为明金和微细粒金。

The native Au can be divided into two kinds of grain and micro-grain gold .

金矿物以自然金为主，可回收元素金为细粒金和微细粒金。

The native gold is main gangue minerals and it is fine particle and micro-fine particle .

铋矿物作为主要载金矿物，与自然金紧密共生；

As main minerals holding native gold , bismuth minerals are closely coexisting with native gold .

自然金的化学分离方法

Chemical separation method for native gold

自然金&银类质同象系列矿物晶胞参数变化规律及其表述方程

The changing law and the expressing equation of the mineral cell parameters of the gold-silver isomorphous series

围岩蚀变作用不强。金矿物为自然金，粒度细、成色高。

Gold mineral is native gold , its grain size is fine , its fineness is high .

金主要以吸附形式存在胶状硫化矿物和草莓状黄铁矿中，在角岩中，金品位较高且见有较大颗粒的自然金。

There are higher grade An in hornstone , in which large natural An particles have been found .

主要金属矿物是，黄铁矿、方铅矿、闪锌矿、自然金、银金矿、硫蹄铋矿。

Pyrite , galena , sphalerite , native gold , electrum and joseite are the main ore minerals .

层状主矿体中金主要以细小的自然金形式包裹于斑铜矿和黝铜矿中。

Gold in stratiform major orebody is mainly included in bornite and tetrahedrite as fine grain of native gold .

冀北东坪金矿自然金标型特征自然金的标型及成色特征在金矿床研究中的意义

The meaning of the typomorphic characteristics of native gold and its fineness feature in the researches of ore deposit

根据分析电镜能谱分析及电子探针分析，这些金均为独立的自然金矿物，具有极高的成色。

All the gold particles are native gold mineral with very high fineness according to EDS and EPMA analyses .

湖南变质岩区的内生与外生金矿床均以高成色的单一自然金产出为特征。

Endogenic and exogenic gold deposits in metamorphic regions in Hunanare characterized by occurrence of high-percentage single natural gold .

含金矿脉主要由中等-最大微斜长石、石英、黄铁矿和微晶自然金等矿物组成。

The gold-bearing ore veins consist of microcline from intermediate to maximum , quartz , pyrite and microcrystalline natural gold .