Topaz – Uncyclopedia, the content-free encyclopedia

Topaz mining, on the other hand, is a lot like diamond mining, coal mining, tin mining, and the ancient and futile practice of mine mining, the process of extricating an entire mine (whether as a whole, or in pieces to be later assembled into a whole) from the inside of another mine entirely.

Mining in Pakistan – Wikipedia

Currently around 52 minerals, are mined and processed in Pakistan. Mining in Pakistan is a dangerous job, especially coal mining, as safety procedures are often neglected and accidents are quite common. Mining is an important industry in Pakistan.

ShopNBC Official – Gems en Vogue II 11.38ctw London Blue Topaz Trillon Drop Earrings ShopNBC.com

All stones permanently heat processed. Virtually all colorless Topaz mining occurs in Brazil, though these specimens are found in a host of other countries. Unlike man-made gems, treated colorless Topaz looks "real" because it is a natural gem that has just undergone a coloring process.

Blue Topaz Celtic Jewelry – Gemvara

Our precious metals are recycled or responsibly mined. Blue was once the rarest color of topaz, but today it is the most common thanks to a stable color-enhancement process involving irradiation and heat that was developed in the 1970s.

Wiktionary – Appendix:Dictionary of Mining, Mineral, and Related Terms/O/2 – Wiktionary

Dictionary of Mining, Mineral, and Related Terms/O/2. A process for separating the copper and nickel in the matte obtained by Bessemerizing. Also known as top-and-bottom process. Any of the depressants used in the flotation process.

Texas State Historical Association (TSHA) – MINERAL RESOURCES AND MINING – The Handbook of Texas Online – Texas State Historical Association (TSHA)

The production of lignite by strip-mining methods and the utilization of lignite to fuel mine-mouth generators for the production of electricity caused Texas to become a major coal (lignite) producer during the 1970s. MINERAL RESOURCES AND MINING.

Linda B's Blog – November Birthstones – Citrine & Topaz

Citrine is known to change color when subjected to heat and is routinely heated in the jewelry-making process to intensify its color. Most Citrine is mined in Brazil, but other sources of the quartz are Bolivia and Madagascar.

San Diego Natural History Museum – Your Nature Connection in Balboa Park – History of Mining …

In 1969 the Pala Stewart mine hit a new tourmaline adit and produced another ton of hot pink tourmaline before the mine sold in 1980. San Diego jeweler John W Ware owned and operated a small mine on Smith Mountain which produced the topaz.

US Uranium Mining and Exploration – US Nuclear Fuel Cycle Appendix 1

Most are mature operating mines with extensive underground workings, while the Topaz mine is relatively new. The Arizona 1 underground mine resumed production in 2009, with ore processed at White Mesa.

Topazery – Antique Jewelry FAQ's

The stone and ring may also be damaged during the setting process. Heat treatment completes a process that nature started.

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