gold in blue rock or shale

Rare Gems and Minerals in New Mexico - Gold Rush Nuggets

Metasedimentary rocks, mostly derived from sandstone and shale, with minor conglomerate and carbonate rock. Includes quartz-rich, mostly nonvolcanic Pinal Schist in southeastern Arizona and variably volcanic-lithic sedimentary rocks in the Yavapai and …

Shale | rock | Britannica

Shale has a very small particle size, so the interstitial spaces are very small. In fact they are so small that oil, natural gas, and water have difficulty moving through the rock. Shale can therefore serve as a cap rock for oil and natural gas traps, and it also is an aquiclude that blocks or limits the flow of groundwater.

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

The encasing material is made up of red sandy soil on the surface, underneath which is a layer of calcareous tufa, then yellow shale, then black shale, and below this, hard igneous rock. The diamond-bearing ground consists of "yellow ground" (really the decomposed "blue ground"), which is comparatively

gold in blue rock or shale - volmaacktwonen.nl

Shale is a rock that has been formed from the compression of mud over time. Some black shale contains organic compounds that can be converted to oil or natural gas. Other colors of shale are crushed and mixed with water to create clay. Shale is also used to produce cement, terra cotta pots, bricks and tile roofs.

What Is Shale Used For? | Reference.com

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Gold Occurrence in the Cretaceous Mancos Shale - Eastern …

Shale is a fine-grained, clastic sedimentary rock, composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility.

How to Find Gold, Using a few common ... - Hunting 4 Gold .com

Shale is a fine-grained, clastic sedimentary rock, composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility.

In What Rock Formations Can Gold Be Found? | Sciencing

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How to Identify Precious Stones

Shale is a clay-rich sedimentary rock found all over the world. If shale gets wet, it usually smells like mud or wet dirt. However, the rock known as oil shale has a smell like diesel oil or tar. That oily smell is from a petroleum-like substance known as kerogen. Kerogen is not yet oil.

Blue Sky and Blue Rocks, Exploring Arizona's Goldfields ...

Gold encased in quartz rock, also known as gold specimens, are highly sought after by collectors and prospectors. They can be hard to find, but using the proper equipment and tactics, it is possible to find beautiful specimens.

Vallejo, CA Golf Course | Blue Rock Springs

Sonoma County, CA mines, mine companies, mine owners and mine information. US-Mining provides information on mines, operators, and minerals mined in Sonoma County, CA

Shale - Wikipedia

Natural Stone in Bulk. Flagstone: Arizona, Oklahoma, Utah, & Pennsylvania Blue Stone. Sand Stone/River Rock/Granite: boulders, rocks, cobble. Sonoma Moss:

Natural Stone in Bulk - Santa Ynez Stone

Gold Occurrences in the Cretaceous Mancos Shale, Eastern Utah By Gordon Mar latt 1 The Cretaceous Mancos Shale of eastern Utah (Fig. 1). covers several thousand square miles. It is a thick, homogenous, organic-rich shale, and like many black shales is …

Rock Identification Guide - Mining Matters

Shale, any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles. Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth. Shales are …

Pyrite - Wikipedia

Pyrite is usually found associated with other sulfides or oxides in quartz veins, sedimentary rock, and metamorphic rock, as well as in coal beds and as a replacement mineral in fossils, but has also been identified in the sclerites of scaly-foot gastropods. Despite being nicknamed fool's gold, pyrite is sometimes found in association with small quantities of gold.

Rock and Mineral Identification - YouTube

Black shales were deposited in the continental margin rifts when the North China Craton underwent regional extension and break-up events during Mesoproterozoic era. The rock series, composed of clastic rocks, carbonate rocks, and minor volcanic rocks, are rich in gold, and become the source for gold mineralization.

Mudrock - Wikipedia

per ton. One of these runs yielded 2.6 ounces silver and $1.36 gold per ton, and another of them gave an aggregate value of $6.75 per ton. The Kansas Pioneer Gold Shale Company, advertising their stock in the principal papers of St. Louis, Chicago, and New York, state the

Goldrush - General Shale

New Mexico is a very popular state to search for a variety of rocks, minerals and gemstones. There are an abundance of different types that can be dug here, some of which are quite valuable. Below are a few of the most highly desired minerals that you can find in the state of New Mexico. Out of New Mexico's 33 counties, turquoise is said to ...

Sonoma County, CA Mines - US Mining

Complete with photos and information about each rock's distinguishing characteristics, this rock identification guide has been designed to assist you in identifying the rocks provided in the Deeper and Deeper and Mining Matters II kits. This guide also includes information about how each rock was formed, the location from where they were ...

Shale - Wikipedia

gold in blue rock or shale; The occurence of gold in sandstones and shale. Apr 23, 2013 If shale or slate carries carbon, and some igneous activity under it should cause it to fracture and allow quartz veins to develop within it, the carbon has been known to help gold carried in the quartz to precipitate into visible bodies.

can you find gold in slate slabs (Page 1) / Hard Rock Gold ...

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Gold mineralization in Proterozoic black shales: Example ...

Gold is found widely diffused in nature even though it is one of the scarcer metals. Very commonly, gold occurs as the native metal encased within quartz. Sometimes the gold is in a finely divided state, sometimes in particles of considerable size, as nuggets, grains, scales, plates, threads and wires in quartz rock.

black carbonaceous shale and gold mining

gold in blue rock or shale - perkinspreschool.com (99+ customer review) A Carbonaceous Sedimentary Source-Rock Model for Carlin-Type . Aug 3, 2010 indicative of carbonaceous shale source rocks with the potential to produce economic though the gold source rocks may include black shales gold-rich diagenetic pyrite (blue diamonds and green squares ...

Geologic units containing Argillite - USGS

Mudrocks have low porosity, they are impermeable, and often, if the mudrock is not black shale, it remains useful as a seal to petroleum and natural gas reservoirs. In the case of petroleum found in a reservoir, the rock surrounding the petroleum is not the source rock, whereas black shale is a source rock. Importance

How to find gold in quartz rock specimens

Stabilized 3/8″ Gold DG; Stabilized 3/8″ Grey DG; ... Chili Bar Pavers; Chili Bar Boulders; Screened Fill Material; Shale. Brown Shale; Blue Shale; Calculator; Get a Quote; Contact Us; Resources. Area Calculator; Cylinder/Circle Calculator; Credit Card Authorization Form; FAQ; Get a Quote; Blue Shale. Category: Decorative Rock, Landscaping ...

Blue Shale | All Valley Sand and Gravel Inc.

Nov 19, 2007· I have not heard about "blue shale". Can he tell you what it is and why having a rock lining is needed? Most rock will over time sink into the bottom and or be covered with silt. We use gravel/rock for fish beds and swimming areas or structure. Lets see what others say.