Svoboda | Graniru | BBC Russia | Golosameriki | Facebook

To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

Bisbee turquoise commonly has a hard chocolate brown colored matrix.

Bisbee Blue or Bisbee turquoise refers to the turquoise that comes from copper mines located in the vicinity of Bisbee, Arizona. Bisbee turquoise can be found in many different shades of color and quality, from soft, low quality pale blue, to the quality hard brilliant blue turquoise and almost every shade of blue in between. The highest grade of Bisbee Blue turquoise is almost lapis lazuli blue and has a brownish-red spiderweb matrix. Green turquoise is also found in Bisbee.

YouTube Encyclopedic

  • 1/2
    Views:
    26 695
    2 490
  • Bisbee Turquoise Video
  • Native American Indian Jewelry: How to identify and date Bisbee Turquoise in Native American Jewelry

Transcription

History

Discovery

Though small amounts of turquoise were found in the Campbell shaft mine, as well as in stream beds in the Mule Mountains, the vast majority of Bisbee turquoise surfaced when the Phelps Dodge Corporation started open pit mining operations at the location now known as the Lavender Pit, especially the eastern side of the pit. Large amounts of a conglomerate rock bed needed to be removed before the copper ore located more deeply could be reached. This sedimentary conglomerate "waste" rock was the host for most of the turquoise, in both vein and nugget form.

Recovery

During the time that the largest quantities of turquoise were being extracted from the mine, the company made no organized effort to recover it. It simply got loaded into large dump trucks and hauled off to the "dumps". During this time (primarily from the late 1950s to the late 1960s), some of the recovered turquoise was obtained by company employees taking it home in their lunch boxes, etc. Though this activity was prohibited, the prohibition was rarely enforced. For several years (mostly the early to late 1970s), these individuals, locally known as "dumpers", were the only source for this fine turquoise aside from those who were granted exclusive access to collect turquoise existing in the mine dumps during a set day annually for a marginal fee.

During this time, Phelps Dodge leased out the dumps to Bob Matthews. Matthews and associates were the only legal miners of the Bisbee turquoise and other copper minerals in history besides the annual dig pass holders. Matthews sold large lots to the famous artists the Zacharys from Albuquerque, New Mexico, the owners of the Turquoise Museum in Albuquerque, John Hartman in Durango, Colorado, and many other famous artists and traders. Some of Matthews' turquoise was sent to Durango to be made into jewelry by his brother-in-law Cecil Mickelson's jewelry company. The company made Bisbee Blue and Villa Grove inlay turquoise jewelry up until the 1980s. In the early 2000s the Durango Silver Company, bought what was thought to be left of the Bob Matthews/Cecil Mickelson Collection of Bisbee turquoise. This collection amounted to approximately 500 lb (230 kg) of rough Bisbee turquoise. Still, numerous reputable artists and suppliers continue to sell what remains of the exquisite and highly collectible turquoise from Bisbee.

References

This page was last edited on 3 June 2024, at 21:06
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.