electrum vein in quartz

Electrum - mindat.org

A quartz vein from Miller's Locality 3 that has been sawed for analysis. The 1 mm disseminated metallic grains that form crude layers in the Quartz are Electrum. Occasionally the gold occurred separately from the uranium and selenide mineralization.

Structure of a High-Grade, Electrum-Bearing, Quartz ...

Structure of a High-Grade, Electrum-Bearing, Quartz-Carbonate Vein Stockwork at the Brucejack Deposit, Northwestern British Columbia (NTS 104B) N.J. Harrichhausen, Department of Earth and Planetary Sciences, McGill University, Montréal, QC, [email protected]

Electrum - Photo Gallery

A nearly pure mass of crystalline electrum with a few 1mm crystals of quartz.Specific locality details: High Grade Vein, Phase 5, 6005 Bench, Round Mountain Mine.Analysis shows the make up of the electrum to be 66.7% Gold, 33.3% Silver.

Association of Electrum and Calcite and Its Significance ...

close association of electrum with pseudo-acicular quartz, and electrum with truscottite were observed. The initial coprecipitation of electrum and calcite might be a common phenomenon in the gold-bearing veins at the Hishikari deposits. The Th (homogenization temperature) data from the Honko-Sanjin deposits are generally higher than those from the

The Waihi Epithermal Gold-Silver-Base Metal Sulfide-Quartz ...

Mar 01, 2002 · Quartz within electrum-poor Zn-Pb-Fe sulfide bands was deposited at higher temperatures (295°–242°C) and salinities than quartz in electrum-bearing Zn-Pb-Fe-Cu-Ag sulfide bands (260°–190°C). Temperature versus depth profiles for fluid inclusions with evidence of boiling indicate that the paleowater table was located about 160 m above ...

Colloidal transport and flocculation are the cause of the ...

May 18, 2021 · Fig. 1. Ultrahigh-grade (bonanza) electrum mineralization in (A) a calcite-quartz vein hosted by sericitized crystal tuff in a development face in the underground mine workings and (B) in a calcite nanoveinlet (bright-field TEM image).The two images emphasize the strong similarity between massive (clotted) electrum at the macro and nano scales.

Electrum - mindat.org

A quartz vein from Miller's Locality 3 that has been sawed for analysis. The 1 mm disseminated metallic grains that form crude layers in the Quartz are Electrum. Occasionally the gold occurred separately from the uranium and selenide mineralization.

Colloidal transport and flocculation are the cause of the ...

May 18, 2021 · Ultrahigh-grade (bonanza) electrum mineralization in (A) a calcite-quartz vein hosted by sericitized crystal tuff in a development face in the underground mine workings and (B) in a calcite nanoveinlet (bright-field TEM image).The two images emphasize the strong similarity between massive (clotted) electrum at the macro and nano scales.

Association of Electrum and Calcite and Its Significance ...

close association of electrum with pseudo-acicular quartz, and electrum with truscottite were observed. The initial coprecipitation of electrum and calcite might be a common phenomenon in the gold-bearing veins at the Hishikari deposits. The Th (homogenization temperature) data from the Honko-Sanjin deposits are generally higher than those from the

Colloidal transport and flocculation are the cause of the ...

May 18, 2021 · Fig. 1. Ultrahigh-grade (bonanza) electrum mineralization in (A) a calcite-quartz vein hosted by sericitized crystal tuff in a development face in the underground mine workings and (B) in a calcite nanoveinlet (bright-field TEM image).The two images emphasize the strong similarity between massive (clotted) electrum at the macro and nano scales.

The Waihi Epithermal Gold-Silver-Base Metal Sulfide-Quartz ...

Mar 01, 2002 · Quartz within electrum-poor Zn-Pb-Fe sulfide bands was deposited at higher temperatures (295°–242°C) and salinities than quartz in electrum-bearing Zn-Pb-Fe-Cu-Ag sulfide bands (260°–190°C). Temperature versus depth profiles for fluid inclusions with evidence of boiling indicate that the paleowater table was located about 160 m above ...

Vein Mineralogy and Hydrothermal Gold Mineralization at ...

The morphology of electrum in quartz veins appears as a bunch of grains that are nearly 1 cm. Figure 8. Paragenetic sequence of thin crustiform layer, chalcedonic quartz vein and ankerite-quartz-sericite vein in the Kyaw Soe Thu Prospect. wide in the stage II chalcedonic quartz veins.

Vein textures and chemistry of ore minerals associated ...

is characterized by quartz-carbonate-chlorite-adularia-pyrite veins and breccias intruding volcaniclastic sedimentary to andesitic volcanic breccia. Gold and electrum form as inclusion, fine-grained and mainly concentrated in pyrite host, based on quartz textural and petrological analysis.

REPEAT – American Pacific Mining Doubles Tuscarora ...

Sep 16, 2021 · Figure 3 Gold in Sugary Quartz from the Grand Prize Vein Figure 4 Banded Electrum and Silver Sulfosalts, Argenta Vein Figure 5 Disseminated and Speckled Gold in Banded Quartz, Young American Vein

American Pacific Mining Doubles Tuscarora Property Size ...

Sep 15, 2021 · Figure 1 Electrum in Bladed Quartz from the Grand Prize Vein Figure 2 American Pacific original property claims (blue), plus newly acquired claims (yellow), and highlighted sample results Figure 3 ...

Association of Electrum and Calcite and Its Significance ...

Further, ores and electrum of this vein exhibit exceptionally high Au/Ag ratios (>4 for ores and 0.64 to 0.83 for electrum); these ratios are higher than those of other veins in the Hishikari mine.

Scanning-electron-microscope imaging of gold (electrum ...

Dec 16, 2019 · At Jumbo, vein quartz does occur along veinlet selvages, was not epithermal in origin, and is apparently older and has a higher temperature (J.A. Saunders, unpublished data). Thus, in the ore samples studied, gold occurs primarily as coarse-grained electrum dendrites imbedded in the coarse-grained mono-mineralogic adularia gangue.

Rocks to Gold Part 1: Prospecting/blasting gold bearing ...

Earlier this summer I purchased a microblaster system to do some prospecting and high grading of some gold bearing quartz viens. I really liked the mircobla...

American Pacific Mining Doubles Tuscarora Property Size ...

Sep 15, 2021 · Figure 1 Electrum in Bladed Quartz from the Grand Prize Vein Figure 2 American Pacific original property claims (blue), plus newly acquired claims (yellow), and highlighted sample results Figure 3 Gold in Sugary Quartz from the Grand Prize Vein Figure 4 Banded Electrum and Silver Sulfosalts, Argenta Vein Figure 5 Disseminated and Speckled Gold in Banded Quartz, Young American Vein

Report on the of N.T.S. 92L/3W

Canada Limited, discovered numerous grains of electrum in a previously unmapped quartz vein. Detailed chip sampling by a BP crew, under the supervision of the writer, substantiated the presence of bonanza gold-silver values. No work has been undertaken on the SIN claims since the sampling of the Electrum Vein in May of 1984.

Structure of a High-Grade, Electrum-Bearing, Quartz ...

Structure of a High-Grade, Electrum-Bearing, Quartz-Carbonate Vein Stockwork at the Brucejack Deposit, Northwestern British Columbia (NTS 104B) N.J. Harrichhausen, Department of Earth and Planetary Sciences, McGill University, Montréal, QC, [email protected]

Descriptive Model of Comstock Epithermal Veins

DESCRIPTION Gold, electrum,silver sulfosalts, and argentite in vuggy quartz-adularia veins hosted by felsic to intermediate volcanic rocks that overlie predominantly elastic sedimentary rocks, and their metamorphic equivalents (see fig. 106). GENERAL REFERENCES Buchanan (1980), Boyle (1979).

Electrum - Photo Gallery

A nearly pure mass of crystalline electrum with a few 1mm crystals of quartz.Specific locality details: High Grade Vein, Phase 5, 6005 Bench, Round Mountain Mine.Analysis shows the make up of the electrum to be 66.7% Gold, 33.3% Silver.

Electrum Project – TUDOR GOLD

Like the nearby Valley of the Kings deposit, gold and silver mineralization occurs as coarse electrum in several generations of quartz-carbonate veins and vein breccias hosted within a deformed island arc-related sequence. The intermediate to low sulphidation mineralization is present in most of the veins with pyrite, sphalerite, galena and ...

RESISTIVITY MEASUREMENT OF VEINS

electrum in sulphide-rich banded quartz veins, (Brathwaite and McKay, 1989).In close proximity to the veins, the andesite host strongly altered (illite and adularia) pervasively and subsequentlyoxidised by weathering. Resistivity Methods Two survey techniques employedon traverse line The first is a vector gradient array where the current electrodes

Vein textures and chemistry of ore minerals associated ...

is characterized by quartz-carbonate-chlorite-adularia-pyrite veins and breccias intruding volcaniclastic sedimentary to andesitic volcanic breccia. Gold and electrum form as inclusion, fine-grained and mainly concentrated in pyrite host, based on quartz textural and petrological analysis.

Quartz veins with associated Sb-Pb-Ag±Au mineralization in ...

Nov 21, 2018 · Gold is rather widespread in the studied Sb-quartz vein type mineralization in the Schwarzwald either as invisible gold and/or as native gold/electrum. Invisible gold is present in significant concentrations in minerals of stage I, in pyrite, arsenopyrite, marcasite, and stibnite.

(PDF) Hessite and Electrum from the Ratagain Intrusion ...

Four km to the south, at Corrie Buie, are quartz veins, hosted by meta-limestones, containing galena with minor amounts of chalcopyrite, pyrrhotite, sphalerite, electrum, schirmerite, and ...

The Ag/Au ratio of native gold and electrum and the ...

and electrum from auriferous vein deposits and from gold- silver vein deposits in Japan are summarized in Fig. 3. It is evident that the Fe content of sphalerite from auriferous vein deposits is higher than that from gold-silver vein deposits. 0 20 40 60 80 100 Ag atomic % Fig. 2.

Trace elements in quartz vein of Gubong gold deposit ...

The Gubong gold deposit is located in the Cheonan metallogenic province which records a highest gold production areas in the Republic of Korea. The Gubong deposit is the richest gold deposit in the province and consists of five stages of massive quartz veins that fill fractures along fault shear zones orienting NE and NW hosted in Precambrian metasedimentary rocks (Gyeonggi massif).

Vein Mineralogy and Hydrothermal Gold Mineralization at ...

The morphology of electrum in quartz veins appears as a bunch of grains that are nearly 1 cm. Figure 8. Paragenetic sequence of thin crustiform layer, chalcedonic quartz vein and ankerite-quartz-sericite vein in the Kyaw Soe Thu Prospect. wide in the stage II chalcedonic quartz veins.

Naumannite with Gold (Electrum) from Knob Hill Mine ...

That is, the vein filled with quartz with or without gold and silver, then either there was movement on the fault breaking the quartz filling, or steam pressure broke the filling (much like one sees in Yellowstone, only more sporadic and more violent), and a new round of mineralization entered the vein. ... Electrum is easily visible with the ...

Scanning-electron-microscope imaging of gold (electrum ...

Dec 16, 2019 · At Jumbo, vein quartz does occur along veinlet selvages, was not epithermal in origin, and is apparently older and has a higher temperature (J.A. Saunders, unpublished data). Thus, in the ore samples studied, gold occurs primarily as coarse-grained electrum dendrites imbedded in the coarse-grained mono-mineralogic adularia gangue.

The Waihi Epithermal Gold-Silver-Base Metal Sulfide-Quartz ...

Mar 01, 2002 · Quartz within electrum-poor Zn-Pb-Fe sulfide bands was deposited at higher temperatures (295°–242°C) and salinities than quartz in electrum-bearing Zn-Pb-Fe-Cu-Ag sulfide bands (260°–190°C). Temperature versus depth profiles for fluid inclusions with evidence of boiling indicate that the paleowater table was located about 160 m above ...

Copyright © 2020.Company name All rights reserved.SiteMap