Showing: 1-20 of 5486

Copper

Hudbay, Augusta agree to friendly takeover

Hudbay, Augusta agree to friendly takeover

Hudbay Minerals Inc. and Augusta Resource Corp. announced early today that the two companies have agreed on a friendly takeover bid for the British Columbia company that owns the proposed Rosemont Mine site near Tucson.

June 23, 2014 7:46 am Related Loading…
Mine Tales: Silver turned to copper yields in Miami

Mine Tales: Silver turned to copper yields in Miami

Silver discoveries in the 1870s instigated mining in the Globe-Miami District.

June 23, 2014 12:00 am Photos

Photos

Loading…

Ringleader gets 2½ years in multimillion-dollar copper-theft plot

A man who prosecutors said was the ringleader of a multimillion-dollar copper-theft scheme was sentenced Wednesday to prison.

May 29, 2014 12:00 am

Ring's Reflections: The 'Five C's' impact on today's Arizona economy

In the final installment in this series, we’ve arrived at the question of how much the historic bedrocks of our economy, Arizona’s traditional Five C’s affect the current state economy.

May 08, 2014 12:00 amLoading…
Tucson in 100 Objects — copper ingot

Tucson in 100 Objects — copper ingot

We’re defining Tucson in 100 objects. The daily series began April 20. Follow along at azstarnet.com/100objects/

May 04, 2014 12:00 am Photos

Photos

Loading…
Mine Tales: Operations at Silver Bell likely to continue for years

Mine Tales: Operations at Silver Bell likely to continue for years

Depressed copper prices in the 1920s and ’30s saw the eventual closure of mining operations in the Silver Bell district. The nearby Sasco smelter had shut down by 1921 and the Sasco townsite was abandoned.

April 07, 2014 12:00 am Photos

Photos

Loading…
Ring's Reflections: Copper remains a huge economic factor in Arizona

Ring's Reflections: Copper remains a huge economic factor in Arizona

It seems like mining has always been big in Arizona. In 1736 the discovery of silver just below the current border with Mexico drew prospective Spanish miners northward into Southern Arizona. After Arizona became a U.S. territory, gold was found near Yuma in 1858 and in 1863 in the Bradshaw …

April 03, 2014 12:00 amLoading…

Hudbay extends hostile bid for Rosemont developer

Toronto-based Hudbay Minerals Inc. on Monday announced a “final extension,” to May 5, of its offer to acquire Rosemont Mine developer Augusta Resource Corp.

March 31, 2014 2:30 pmLoading…
Ring's Reflections: Five C's are integral to Arizona's history

Ring's Reflections: Five C's are integral to Arizona's history

Do you know Arizona’s traditional five C’s? I’m talking about the most important elements of Arizona’s economy during the state’s development from a U.S. territory through statehood and well into the 20th century.

March 27, 2014 12:00 am Photos

Photos

Loading…

Ned Norris Jr. and Peter Yucupicio: Rosemont Mine plan is just horrible on so many levels

We, the leaders of Tohono O’odham Nation and Pascua Yaqui Tribes representing more than 50,000 Southern Arizonans, are outraged over the Arizona Daily Star’s Jan. 19 editorial endorsing the proposed Rosemont Mine in the Santa Rita Mountains south of Tucson.

February 16, 2014 12:00 amLoading…

White House now tracking Rosemont Mine progress

The White House is informally involved in the contentious Rosemont Mine issue, Coronado Forest Supervisor Jim Upchurch said today.

December 16, 2013 2:37 pm Related Loading…
Latest Rosemont Mine report is out

Latest Rosemont Mine report is out

The final version of the Rosemont mine environmental impact statement is now online.

November 29, 2013 12:43 pmLoading…
Mine Tales: High copper prices drove demand at Ajo mining district

Mine Tales: High copper prices drove demand at Ajo mining district

Editor’s note: This is the second in a two-part series on the Ajo mining district. To read the first part of this series go online to tinyurl.com/ajomine

November 25, 2013 12:00 am Photos

Photos

Loading…

Do I Have to Fill My Empty Pool With Sand?

Every year, thousands of Arizona residents email Rosie Romero’s website or call his radio show with questions about everything from how to prevent fires in their chimneys to what to do about the tree roots invading their sewer systems. One of his goals is to provide answers that suit the spe…

September 08, 2013 12:00 amLoading…

Rosemont ruling may miss Sept. deadline

Coronado National Forest Supervisor Jim Upchurch is walking a scheduling tightrope for the proposed Rosemont Mine.

July 28, 2013 12:00 amLoading…

Freeport looks to cut debt as profit declines

Phoenix-based Freeport-McMoRan Copper & Gold Inc. is cutting spending by $1.9 billion this year and next and started a process to sell some U.S. energy assets as the world's biggest publicly traded copper miner seeks to reduce its debt.

July 24, 2013 12:00 amLoading…
Tucson tech: Tucson's Mintec the only Arizona firm to land President's E-Award for Exports

Tucson tech: Tucson's Mintec the only Arizona firm to land President's E-Award for Exports

president of Mintec Inc., which won a President's E-Award for Exports.

June 04, 2013 12:00 amLoading…
Tucson tech: Tucson's Mintec the only Arizona firm to land President's E-Award for Exports

Tucson tech: Tucson's Mintec the only Arizona firm to land President's E-Award for Exports

Technology that helps miners around the globe figure out when and where to dig has helped a Tucson company land national honors.

June 04, 2013 12:00 am Photos

Photos

Loading…
Tucson tech: Tucson's Mintec the only Arizona firm to land President's E-Award for Exports

Tucson tech: Tucson's Mintec the only Arizona firm to land President's E-Award for Exports

A 3-D modeling image of an open-pit mine from Minesight mine-management software made by Tucson-based Mintec Inc., which provides a suite of modeling and mine-planning software.

June 04, 2013 12:00 amLoading…
Horne: 18 in copper theft ring indicted

Horne: 18 in copper theft ring indicted

State Assistant Attorney General Mike Jette discusses the copper thefts. Mine workers are accused of selling the copper to recyclers at a fraction of the price. The recyclers would then resell it to Chinese importers, investigators say.

May 01, 2013 12:00 amLoading…

Follow the Arizona Daily Star

Featured businesses

View more...
View more...

Deals, offers & events

View more...

Event Calendar

Today's events | Add an event

Most viewed: