Asked in Mercury Topaz, Gems and Precious Stones, Topaz
What color of topaz can you get?
Topaz is a gemstone of all colors (Orange, yellow, brown, light blue to deep sky-blue, pink, colorless, white, light purple, greenish-blue, green), and its most valuable color is a golden orange-yellow, called "imperial topaz". Topaz is commonly thought of as a sky-blue gem, but it was not until this century that blue topaz became widespread on the gem market. Natural blue topaz with a deep hue is very uncommon in nature; colorless to light hued stones are heat-treated to achieve the blue...
Asked in Geology, Gems and Precious Stones, Topaz
Why can topaz scratch quartz but topaz can be scratched be diamond?
quartz is softer than the topaz but the topaz is softer than diamonds which are the hardest :) hope this helps ...
Asked in Geology, Gems and Precious Stones
Will the mineral topaz scratch quartz or will quartz scratch topaz Why?
topaz has a hardness of 8 on the mohs hardness scale, quartz has a hardness of 7. topaz will be able to scratch quartz, but quartz can never scratch topaz. ...
Asked in Gems and Precious Stones, Topaz
What does color topaz mean?
Topaz occurs naturally in many colors, but rarely as pink and purple. Almost all pink and purple Topaz are yellow to brown stones that were heat-treated. Topaz from certain localities may turn colorless upon heating. Much of the deep blue Topaz on the market is heat-treated from colorless or white stones. The color of some Topaz specimens, namely those from Siberia, fade upon prolonged exposure to light. Such specimens should be stored in dark areas, and one should make sure not to...