|
| Home | Crystal | jmol | jPOWD | Chem | X Ray | Dana | Strunz | Properties | A to Z | Images | News | Help | About |
[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.
Biotite
 |
| Mineral: | Biotite: K(Mg,Fe++)3[AlSi3O10(OH,F)2 | |||||
| Comments: | Sharp hexagonal plates of dark brown biotite to 2.5 cm. across, with white albite. | |||||
| Location: | Brazil. | |||||
| Scale: | 6.9x5.5x3 cm. | |||||
| Copyright: | © Richard Dale / Dale Minerals | |||||
| Counter: | This Image has been shown 1661 times | |||||
| Image Links: |
|