enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Tanzanite - Wikipedia

   en.wikipedia.org/wiki/Tanzanite

   In its rough state tanzanite is coloured a reddish brown to clear, and it requires heat treatment to remove the brownish "veil" and bring out the blue violet of the stone. [7] The gemstone was given the name "tanzanite" by Tiffany & Co. after Tanzania, the country in which it was discovered. The scientific name of "blue-violet zoisite" was not ...

3. TanzaniteOne - Wikipedia

   en.wikipedia.org/wiki/TanzaniteOne

   They have the ability to purchase large amounts of rough and have wholesale and retail distribution networks in place to facilitate the sale of loose tanzanite and finished jewellery. In August 2013 TanzaniteOne [4] announced they had opened an online boutique, www.tananiteoneonline, which sold tanzanite gemstones and tanzanite set gold ...

4. Artisanal miner in Tanzania finds third rare tanzanite stone ...

   www.aol.com/artisanal-miner-tanzania-finds-third...

   Small-scale Tanzanian miner Saniniu Laizer struck a rare-gem lottery for the third time this summer, unearthing a 14-pound hunk of tanzanite worth $2 million. In June he had mined two stones ...

5. List of quarries in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_quarries_in_the...

   A widespread legend among the tribes is that the stone gets its color from the flesh and blood of their ancestors." Bass Island Brownstone Company Quarry, in Lake Superior, near La Pointe, WI, NRHP-listed. Source of brownstone for buildings in Chicago, IL and Milwaukee, WI; Walczak-Wontor Quarry Pit Workshop, near Cataract, Wisconsin, NRHP ...

6. Zoisite - Wikipedia

   en.wikipedia.org/wiki/Zoisite

   Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. Blue crystals are known under the name tanzanite. It has a vitreous luster and a conchoidal to uneven fracture. When euhedral, zoisite crystals are striated parallel to the principal axis (c-axis). Also parallel to the principal axis is one direction of perfect cleavage.

7. Mining industry of Tanzania - Wikipedia

   en.wikipedia.org/wiki/Mining_industry_of_Tanzania

   The latest piece of legislation granted the mining company a higher percentage of royalties on gold and base metals, rough diamonds, colored gemstones, uranium and other minerals; made it mandatory for mining companies to be listed on the stock exchange and gave the government a stake in all new mining projects.