quartz gold comstock

Photos of gold ores, quartz, telluride gold ore and gold ...

This chunk of vein quartz from Mariposa is typical of gold-quartz material from the mother lode district of California. In most gold ore, the gold is present in tiny specs, either within minerals like pyrite, or spread out free among the quartz. Normally even good, rich gold ore has no gold …

Quartz Gold Comstock - grinvich.eu

Oct 29, 2010 Rebirth of the Comstock Lode Bob … Rebirth of the Comstock Lode. Bob Moriarty Archives Oct 29, 2010. ... The rock is an oxidized gold and silver in quartz so it's easy to leach.

Great Deposits – The Comstock Lode | Geology for …

The driver is of course gold, with Nevada dominating US gold production claiming 78% of the total. The perceptive might wonder why then is it called the "Silver State" – the answer is the Comstock Lode.

Latest Developments - Comstock Mining

Comstock Mining, Inc., which received an award for Abandoned Mine Lands Hazard Mitigation for their work in rebuilding of State Route 342 and reclamation of historic mine features near Gold Hill in the historic Comstock District in Storey County.

Relationship between amorphous silica and precious metal ...

recrystallizing to quartz with 1 wt % gold Amorphous silica completely recrystallized to quartz with < 0.1 wt% gold Right: Large quartz crystals from quartz-carb vein breccia (XPL). Euhedral core de˜ned by hexago-nal inclusion arrays with ˛amboyant ex-tinction around rims. Above: Dendritic electrum sample in drillcore from the Brucejack deposit. This sample has gold concentrations above 10 ...

Gold in Quartz - February 2016 (Vol. 85, No. 06) - ICMJ's ...

Gold in quartz veins occurs as particles and scales scattered through the quartz, often filling cracks and openings in the vein material. The gold can be such small particles as to be invisible to the naked eye, or as larger aggregates of easy to see blobs, leaves and crystals in cavities in the quartz. The gold fills cracks and spaces in the quartz as the ascending gold-bearing solutions ...

Mont Surfaces | granite, marble, quartzite, porcelain ...

Mont Surfaces: a wholesale supplier - fine surfaces in granite, marble, porcelain, quartzite, natural quartz, engineered quartz for kitchen, bath and remodeling

CREEDE, COMSTOCK, AND SADO EPITHERMAL VEIN DEPOSITS ...

Most Comstock-type veins are gold-rich, and are dominated by quartz and adularia ±carbonate minerals; pyrite, sphalerite, galena, and other sulfi de minerals …

California Gold vein formation, Rich gold quartz ore

It seems quite indisputable, as advocated by Lindgren, that the gold and its associated minerals, including the quartz gangue came up in heated alkaline solution, and that the vein formation was attended by extended carbonatization of the walls. The deposition of the silica had slight chemical effect on the wall rock in other respects, for the change of the latter to carbonates is the chief ...

COMSTOCK QUARTZ VEIN WITH HIGH GRADE GOLD ... …

2009-06-24· Stay tuned: Feature videos are slated for embed in blog with photos of Comstock Quartz Gold Vein Ore Recent Findings.

Michael D. McGranahan

Quartz, calcite, adularia ores with associated silver and gold. This is the Comstock ore-stage mineralization. • Most of the known orebodies occur within the Comstock fault zone (at Virginia City and Gold Hill), or the Silver City fault zone (at Silver City). A few orebodies occur in hanging wall fractures of the Comstock fault zone, such as the famous Con Virginia bonanza. • The Comstock ...

MINFILE Mineral Inventory

The quartz veins carry high gold and variable silver values. The Clubine-Comstock has workings on two major shears striking about 340 degrees and dipping about 35 degrees northeast. The No. 1 level workings are within argillites of the Hall Formation about 60 metres west of the main workings.

Descriptive Model of Comstock Epithermal Veins - USGS

Model 25c DESCRIPTIVE MODEL OF COMSTOCK EPITHERMAL VEINS By Dan L. Mosier, Donald A. Singer, and Byron R. Berger APPROXIMATE SYNONYM Epithermal gold (quartz …

Comstock Lode - ipfs.io

On September 30, 2012 Comstock Mining Inc returned gold and silver production to the Comstock with their first pour of doré bullion [10] and continues surface mining in lower Gold Hill. Legacy Nevada is commonly called the "Silver State" because of the silver produced from the Comstock Lode.

Comstock lode bonanza ore | Silver | Pinterest | Minerals ...

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Comstock Gold: +// MINERALOGY

ELECTRUM is a natural alloy of gold and silver having colorations of yellowish-orange to golden to golden-brownish in translucent material such as quartz. High grade, relative to ancient times, electrum was used by the Roman Empire to make their coinage.

Monday, October 5, 2015 - Comstock Mining

Comstock Mining Encounters Significant High-grade Gold and Silver Intercepts Discovers Extensive Mineralized Masses of Quartz Porphyry. VIRGINIA CITY, NV (October 5, 2015) - Comstock Mining Inc. (the "Company") (NYSE MKT: LODE) today announced significant drill intercepts, both in terms of grades and thickness, resulting from the recent ...

White Gold Corp to Acquire QV Gold Project from …

Not only does this transaction strengthen Comstock's balance sheet, it allows Comstock to participate in White Gold Corp.'s continued exploration of the QV Gold Project as well as participate in the upside in White Gold's other gold deposits, discoveries and developments in the White Gold District."

QV Gold Project - Comstock Metals Ltd.

Visible gold was initially discovered on the southern QV Project by Comstock Metals Ltd. on June 10, 2012 while conducting follow up prospecting of a gold in soil anomaly; an initial grab sample returned 16.28 g/t Au and 47 g/t Ag with anomalous bismuth, tellurium, mercury, molybdenum and lead. The VG zone consists of quartz ±carbonate veins, stockwork and breccia zones, as well as pyrite ...

Comstock Gold

Dark and light gray minerals are often high grade silver minerals as noted in the placard. Visible free gold is in numerous specimens. Yellowish-orange colored quartz like portions can be "Electrum", a natural alloy of gold and silver.

Sold Quartz var. Amethyst from Gold Hill Tunnel Mine ...

From: Gold Hill Tunnel Mine, Comstock Lode, Virginia City, Nevada, USA - Dimensions: 105x70x50mm - Sold by: Weinrich Minerals - The top of this 10.5 x 7.0 x 5.0 cm matrix is mostly covered with lovely purple amethyst crystals to 1.5 cm in size. One seldom sees available specimens from this historic and important mining district. In very good ...

Comstock Lode - Western Mining History

The more restricted Comstock quartz-adularia, low-sulfidation type mineralization (13.7?12.5 Ma) consisting of quartz, calcite, adularia ores with associated silver and gold mineralization. This is the Comstock orestage mineralization.

Comstock Lode - Wikipedia

In the spring of 1859, after digging down to a depth of about ten feet, they found a gold-rich reddish quartz vein. Their discovery was actually part of the Comstock Lode, the Old Red Ledge.: 5–6 ...

Lode - Wikipedia

Gold-bearing quartz veins, Blue Ribbon Mine, Alaska In geology, a lode is a deposit of metalliferous ore that fills or is embedded in a fissure (or crack) in a rock formation or a vein of ore that is deposited or embedded between layers of rock. [1]

TSX-V: WGO OTC-Nasdaq Intl: WHGOF FRA: 29W

White Gold project Resource Comstock confirms 230,000 Inferred Oz Au on the QV project Discovery Comstock strikes drill intersection of 3.04gpt over 45.5m in the VG zone Option Underworld Resources Inc. options the White Gold project from Shawn Ryan I 2011 Resource Western Copper and Gold confirms 8.9M Oz Au reserves and 9.0M Oz Au Inferred resource on the Casino project WGO …

Comstock Quartz Gold Vein Ore from 1869 - YouTube

2009-09-01· Comstock Quartz Gold Vein Ore from 1869 Check later for info of how to buy specimens.

Crystal Gold Mine (Crystal-Comstock), Rathbun Township ...

Gold-bearing quartz veins are associated with a broad zone of soda, potassium, chlorite and carbonate alteration or with carbonate alteration within the gabbro. There were two east-trending quartz veins along which 5 shafts were sunk. The quartz veins occur at the contact between arkose and greywacke.

Comstock Lode - Revolvy

Comstock Lode geologic map, north. Ophir is in the top center. Where qz is quartz and signifies the Comstock Lode.[1] :Sheet IV Comstock Lode geologic map, south. Gold Hill is in the center left. Where dt is diorite and hI is andesite[1] : The Comstock Lode is a lode of silver ore located under the eastern slope of Mount Davidson, a peak in the ...