Hotmail
Messenger
My MSN
MSN Directory
Tetragonal Crystal |
||||||
 |
||||||
 |
||||||
| This Siberian idocrase has a tetragonal crystal structure. Its axes are all perpendicular and two are of equal length. Idocrase is grouped with rocks such as zircon, rutile, and wulfenite, which are rocks of medium hardness that may possess a diamondlike fire. | ||||||
|
||||||
| Dorling Kindersley | ||||||
|
||||||
|
||||||
| Appears in these articles: | ||||||
|
||||||
| Crystal (mineral) | ||||||
|
||||||
|
||||||
|
Advertisement
|
||||||||||||||||||||||||||||||||||||||
| |
||||||||||||||||||||||||||||||||||||||
© 2008 Microsoft
  |