McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

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


Oil and Gas
Oil and Gas: Articles about oil and natural gas in the US and around the world.
Solar System Volcanoes
Solar System Volcanoes: Earth is not the only location of volcanic activity.
city satellite images
What City is This? Can you recognize United States cities from satellite images?
Types of Volcanic Eruptions
Types of Volcanic Eruptions: A description of the most common eruption types.
Plate Tectoncs
Zoom in on Plate Boundaries: See the details of plate tectonics in satellite view.
Geologist Tools
Geologist Tools: Visit our store for a large selection of field and laboratory tools.
Fire Opal
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Rocks on Mars
Rocks on Mars: Many of the rocks found on Mars are not very different from Earth rocks.


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
  Mohs Hardness Scale
  Fluorescent Minerals
  Diamonds Do Not Form From Coal
  Mineral Identification Chart
  Quartz
  Minerals in Colored Glass
  The Acid Test




© 2005-2014 Geology.com. All Rights Reserved.
Images, code and content of this website are property of Geology.com. Use without permission is prohibited. Pages on this site are protected by Copyscape.