The Topaz
Author:Network sources Source:Network sources Date:2012-12-21
D E S C R I P T I O N
PRODUCT ID  O04-06
PRODUCT NAME TOPAZ
SHAPE OVAL
QUANTITY 1 PIECE(S).
WEIGHT 13.25 CTS.
SIZE (Approx.) 13x15x8 mm.
COLOR Champagne
ORIGIN PAKISTAN
CARALITY VS
HARDNESS 8 Moh's 
TREATEMENT Untreated - No Heat 


DETAIL
Pure topaz is colorless and transparent but is usually tinted by impurities; typical topaz is wine, yellow, pale gray, reddish-orange, or blue brown. It can also be made white, pale green, blue, gold, pink (rare), reddish-yellow or opaque to transparent/translucent. Orange topaz, also known as precious topaz, is the traditional November birthstone, the symbol of friendship, and the state gemstone for the US state of Utah.[5] Imperial topaz is yellow, pink (rare, if natural) or pink-orange. Brazilian Imperial Topaz can often have a bright yellow to deep golden brown hue, sometimes even violet. Many brown or pale topazes are treated to make them bright yellow, gold, pink or violet colored. Some imperial topaz stones can fade on exposure to sunlight for an extended period of time.[6][7] Blue topaz is the US state Texas' gemstone.[8] Naturally occurring blue topaz is quite rare. Typically, colorless, gray or pale yellow and blue material is heat treated and irradiated to produce a more desired darker blue.[7] Mystic topaz is colorless topaz which has been artificially coated giving it the desired rainbow effect.[9]

Talented person employment | P
hemmer mill
Screens
gyratory
Filter-vacuum
Filtering
免责声明:文章、图片来源于网络,若有侵权,请联系本网工作人员删除。本文仅代表作者本人观点,与本网无关。 文章内容仅供参考,不构成投资建议。请读者仅作参考,并请自行承担全部责任。