FUCK YEAH MINERALOGY
A blog dedicated to minerals of all sorts.

Managed by Zoe and Lara
Banded Iron Formation With Tiger’s Eye (by Maitri)
Before oxygen was present in the atmosphere, iron existed as Fe2+, which was soluble in water.  As oxygen levels rose, it was oxidized to Fe3+, became insoluble, and dropped out of the water, forming these alternating layers of iron and chert, known as banded iron formations (BIFs).  They are a major source of magnetite (Fe3O4) and hematite (Fe2O3).
  1. Banded Iron Formation With Tiger’s Eye (by Maitri)

    Before oxygen was present in the atmosphere, iron existed as Fe2+, which was soluble in water.  As oxygen levels rose, it was oxidized to Fe3+, became insoluble, and dropped out of the water, forming these alternating layers of iron and chert, known as banded iron formations (BIFs).  They are a major source of magnetite (Fe3O4) and hematite (Fe2O3).

  1. 54 notesTimestamp: Sunday 2012/12/23 12:01:36Source: Flickr / maitribanded iron formationgeologyhematitemagnetitemineralogymineralschert
  1. crucify-them reblogged this from barbie-eat-a-sandwich
  2. barbie-eat-a-sandwich reblogged this from as-true-as-troilus
  3. iamjennahamilton reblogged this from as-true-as-troilus
  4. jlennonlover reblogged this from as-true-as-troilus
  5. brightspots reblogged this from as-true-as-troilus
  6. thestrongestofthestrange reblogged this from as-true-as-troilus
  7. elevenoeight reblogged this from as-true-as-troilus
  8. as-true-as-troilus reblogged this from fuckyeahmineralogy
  9. sparklefunshine reblogged this from fuckyeahmineralogy
  10. sublimelymagnificent reblogged this from fuckyeahmineralogy
  11. 33blackbirds reblogged this from fuckyeahmineralogy
  12. sexual-selection reblogged this from fuckyeahmineralogy
  13. rosespirit reblogged this from nauticalamity
  14. nauticalamity reblogged this from fuckyeahmineralogy
  15. peastore reblogged this from fuckyeahmineralogy
  16. badwolfwatson reblogged this from fuckyeahmineralogy
  17. canislupuslupus reblogged this from fuckyeahmineralogy
  18. zoethepeep reblogged this from fuckyeahmineralogy and added:
    look and them layers so sexy
  19. heveatsbeans reblogged this from fuckyeahmineralogy
  20. dakotared reblogged this from fuckyeahmineralogy and added:
    Nice bit of BIF :)
  21. 130lb-de-piel-y-huesos reblogged this from fuckyeahmineralogy
  22. mountainsinmoonlight reblogged this from fuckyeahmineralogy
  23. sniggles-and-fritz reblogged this from fuckyeahmineralogy
  24. runnerryan reblogged this from fuckyeahmineralogy
  25. krabiel reblogged this from fuckyeahmineralogy and added:
    BIFs BIFs are the fucking best