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Latest Bristol Stories

2015-02-26 20:21:11

Four Key Partners Meet In London To Discuss Global Metro-Urban Challenges and Opportunities WASHINGTON, Feb.

2015-02-20 23:06:15

Gentell Founder David Navazio announced the opening of a West Coast Sales office and the appointment of Arnie Andersen to VP Western Sales.

2015-02-10 12:34:34

New RFID-based ITAM Solutions are Easier to Implement, Faster to Determine ROI BRISTOL, Pa., Feb.

2015-02-05 12:24:29

Beginning Today through March 6th, Fans Have Opportunity to Design Inaugural Battle at Bristol Trophy and Win Once-in-a-Lifetime Experience BRISTOL, Tenn., Feb.

2015-01-29 16:23:21

Bill Gatton Honda shares online vehicle research comparing top Honda models to competitors BRISTOL, Tenn., Jan.

2015-01-13 23:07:09

WITTENSTEIN high integrity systems has extended its Real Time Operating Systems product range to include support for the ARM Cortex A processor series, for use with OpenRTOS in commercial applications,

2014-12-01 08:23:57

Antioquia, Bristol, Hangzhou clinched double titles; Christchurch, Dakar also honoured for shareable and practical urban innovations GUANGZHOU, China, Dec.

2014-11-18 08:38:45

BRISTOL, England, November 18, 2014 /PRNewswire/ -- Acquisition will accelerate product development and seize the market opportunity

2014-11-05 23:10:24

Nursing Home Skincare Line Expands Gentell Line of Products Bristol, Pennsylvania (PRWEB) November 05, 2014 Gentell Executive Vice President and Founder

2014-10-23 08:23:02

Dealership offers 2015 model year BRISTOL, Tenn., Oct.


Latest Bristol Reference Libraries

28_5f496c15049ba89cd8c43810810e311e
2005-05-26 11:32:33

Chalcocite, copper(I) sulfide (Cu2S), is an important copper mineral ore. It is opaque, being colored dark-gray to black with a metallic luster. It has a hardness of 2½ - 3. It is a sulfide with an orthorhombic crystal system. Chalcocite is sometimes found as a primary vein mineral in hydrothermal veins. However, most chalcocite occurs in the supergene enriched environment below the oxidation zone of copper deposits as a result of the leaching of copper from the oxidized minerals. It is...

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Word of the Day
gubbings
  • The parings of haberdine; also, any kind of fragments.
The word 'gubbings' is a variant of the word 'gobbon', meaning 'a portion, gobbet.'