TPZ meaning in Earth Science ?

Answer: What is Topaz mean?

Topaz ( TOH-paz) is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F, OH)2. It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue, golden brown to yellow orange. Topaz is often treated with heat, or radiation to make it a deep blue, reddish-orange, pale green, pink, or purple.

Topaz is a nesosilicate mineral. It is one of the hardest naturally occurring minerals, and has a relatively low index of refraction. It occurs in many places in the world.

reference

Full Form	Category
Telepizza	Business
TheaterPädagogisches Zentrum	Community
Taronga Park Zoo	Community
Topaz	Earth Science
Tar Or Gnuzip Compressed File Archive.tar.gz	File Type
Treepad-compatible Icon Library	File Type
The Practice Zone	General
Temporary Parking Zone	General
Tobacco Processors Zimbabwe	General
Timberland Preserve Zoning	General
Timber Production Zone	General
Tau Psi Zeta	General
Team Pro Zack	General
Tree Protection Zone	General
Tulskiy Patronny Zavod	General
Town Planning and Zoning Commission	Governmental
Timberland Production Zone	Governmental
Timberland Production Zoning District	Governmental
TAPRI	Indian Railway Station
Tirapazamine	Medical