Home » Minerals » Rutile

Rutile


Mineral Properties and Uses



What is Rutile?



Rutile is a titanium oxide mineral that is most commonly found in granites, pegmatites and metamorphic rocks. It is also found in sands derived from the weathering of these rocks. Rutile also forms as slender crystals within quartz and micas. It is a common mineral in the alluvial sands that are dredged for magnetite and ilmenite.


Physical Properties of Rutile

Chemical Classification oxide
Color red, reddish brown, reddish black
Streak pale brown
Luster adamantine to submetallic
Diaphaneity transparent to subtranslucent
Cleavage good
Mohs Hardness 6 to 6.5
Specific Gravity 4.2 to 4.4
Diagnostic Properties luster, color
Chemical Composition titanium oxide, TiO2
Crystal System tetragonal
Uses an ore of titanium, pigments, inert coating on welding rods


Uses of Rutile?



Rutile is used as a coating on welding rods. It is also used as an ore of titanium, a metal used where light weight and high strength are needed. Some rutile used in the production of pigments for paints.


Rutile ilmenite zircon sand
Sand made of rutile ilmenite zircon from Georgia. Specimens are sand size particles.


Rutilated quartz cabochons
Cabochons of rutilated quartz - an example of how long thin crystals of rutile can form in quartz. Each gem is approximately 12 millimeters by 10 millimeters.



Find it on Geology.com




More from Geology.com


Diamonds from Coal
Biggest Misconception: Lots of people think that diamonds form from coal. Not True!
gem photos
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Download Google Earth Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
Sea Level Rise Map
Sea Level Rise Map: A Google map that shows where flooding will occur as sea level rises.
Asteroid Impact Map
Asteroid Impact Map: Explore fifty of the most obvious asteroid impact craters on Earth.
Rock and Mineral Kits
Rock, Mineral and Fossil Collections: Nice kits for personal or classroom use.
Serpentine
Serpentine - a group of metamorphic minerals used as gems and architectural stone.
Aventurine
Aventurine is translucent quartz with tiny reflective inclusions that produce aventurescence.


Rutile
Rutile from Oaxaca, Mexico. Specimen is approximately 1 inch (2.5 centimeters) across.




Ilmenorutile
Ilmenorutile, a variety of rutile from Iveland, Norway. Specimen is approximately 2 inches (5 centimeters) across.


Rutile nigrine
Nigrine, a variety of rutile from Magnet Cove, Arkansas. Specimens are approximately 1/2 inch to 1 inch (1.3 centimeters to 2.5 centimeters) across.


More Minerals
  Minerals
  Diamond
  Rock, Mineral and Fossil Collections.
  Olivine
  Fluorescent Minerals
  Topaz
  Calcite
  Quartz






© 2005-2017 Geology.com. All Rights Reserved.
Images, code, and content on this website are property of Geology.com and are protected by copyright law.
Geology.com does not grant permission for any use, republication, or redistribution.
Images, code and content owned by others are marked on the pages where they appear.