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How to Pronounce Framboid
How to Pronounce Framboid
Published: 2015/03/07
Channel: Pronunciation Guide
À table les enfants ! - La Framboise - Épisode en entier - Exclusivité Disney Junior !
À table les enfants ! - La Framboise - Épisode en entier - Exclusivité Disney Junior !
Published: 2016/03/15
Channel: Disney Junior FR
Frambois from Stardust Christmas Enchantment
Frambois from Stardust Christmas Enchantment
Published: 2016/12/12
Channel: Harlequin Productions
DR. DRE - AFTER They Were Famous
DR. DRE - AFTER They Were Famous
Published: 2016/01/25
Channel: Michael McCrudden
Everyday GLAM Look for Brown Eyes
Everyday GLAM Look for Brown Eyes
Published: 2015/02/24
Channel: LipsticknCurls
A table les enfants ! - La fraise - Episode en entier - Exclusivité Disney Junior !
A table les enfants ! - La fraise - Episode en entier - Exclusivité Disney Junior !
Published: 2014/01/15
Channel: Disney Junior FR
ENDSTATION SONDERFLUG
ENDSTATION SONDERFLUG
Published: 2014/07/18
Channel: AAE RAA
Planter un framboisier
Planter un framboisier
Published: 2013/11/06
Channel: Rustica l'hebdo jardin
Esprit framboise : Atelier Frambois
Esprit framboise : Atelier Frambois'in
Published: 2017/03/07
Channel: Esprit framboise
Fantastik au chocolat, mûres et framboises par Christophe Michalak (#DPDC)
Fantastik au chocolat, mûres et framboises par Christophe Michalak (#DPDC)
Published: 2016/06/07
Channel: Dans la peau d'un chef
Les framboisiers : culture, plantation, taille, entretien, multiplication et récolte
Les framboisiers : culture, plantation, taille, entretien, multiplication et récolte
Published: 2016/10/31
Channel: La bible du jardinage
Konditoria Helsinki Frambois
Konditoria Helsinki Frambois
Published: 2011/06/02
Channel: fonecta02
31 juillet 2017
31 juillet 2017
Published: 2017/07/31
Channel: Frambois Des Bois
TIMMERMANS FRAMBOIS LAMBICUS | BEER REVIEW #45
TIMMERMANS FRAMBOIS LAMBICUS | BEER REVIEW #45
Published: 2017/04/01
Channel: The Fermentation Project
Bonne Nuit Petite Framboise
Bonne Nuit Petite Framboise
Published: 2011/11/28
Channel: JOHNNYCRYING
Lake Effect Brewing Co. - Brett Frambois
Lake Effect Brewing Co. - Brett Frambois
Published: 2015/11/06
Channel: Tricia Scully
POV | Special Flight | PBS
POV | Special Flight | PBS
Published: 2013/06/25
Channel: PBS
BEIGNET A LA FRAMBOISE (CUISINERAPIDE)
BEIGNET A LA FRAMBOISE (CUISINERAPIDE)
Published: 2015/03/09
Channel: cuisinerapide
Frim Frambois
Frim Frambois
Published: 2015/11/06
Channel: Peggy Coyle and Brad Bolton - Topic
Esprit framboise : Frambois
Esprit framboise : Frambois'in
Published: 2017/03/01
Channel: Esprit framboise
How to Pronounce Framboids
How to Pronounce Framboids
Published: 2015/03/07
Channel: Pronunciation Guide
♥Recette: Tarte aux framboises♥
♥Recette: Tarte aux framboises♥
Published: 2015/07/08
Channel: Mimi'sIdeas
Extrait 2 VOL SPÉCIAL
Extrait 2 VOL SPÉCIAL
Published: 2011/08/25
Channel: Fernand Melgar
Lake Effect Brewing Company - Brett Frambois
Lake Effect Brewing Company - Brett Frambois
Published: 2016/02/11
Channel: BeerGeekGamer
Recette de Tiramisu aux framboises - 750 Grammes
Recette de Tiramisu aux framboises - 750 Grammes
Published: 2013/01/14
Channel: 750g
What is ACID SULFATE SOIL? What does ACID SULFATE SOIL mean? ACID SULFATE SOIL meaning
What is ACID SULFATE SOIL? What does ACID SULFATE SOIL mean? ACID SULFATE SOIL meaning
Published: 2016/12/16
Channel: The Audiopedia
La bûche de noël mousse choco-framboises - ALP
La bûche de noël mousse choco-framboises - ALP
Published: 2014/12/19
Channel: Apprendre la pâtisserie
Frambois Electronique
Frambois Electronique
Published: 2015/09/26
Channel: Various Artists - Topic
Recette Coulis de framboises - 750 Grammes
Recette Coulis de framboises - 750 Grammes
Published: 2012/12/27
Channel: 750g
Julien Randoulet UK Very Frambois VID 20160624 173034
Julien Randoulet UK Very Frambois VID 20160624 173034
Published: 2016/06/27
Channel: Julien Randoulet
Frambois et Toilette J52
Frambois et Toilette J52
Published: 2009/06/18
Channel: Bogus Trumper
Les Fraise et les Frambois and Red Wing
Les Fraise et les Frambois and Red Wing
Published: 2012/11/04
Channel: Ryan Nelson
Extrait 1 VOL SPÉCIAL
Extrait 1 VOL SPÉCIAL
Published: 2011/08/01
Channel: Fernand Melgar
Bûche glacée aux framboise et vanille /  لابــــــيـــــش التوت و الفانيللا
Bûche glacée aux framboise et vanille / لابــــــيـــــش التوت و الفانيللا
Published: 2016/12/19
Channel: Ma fleur d'oranger
Shaka Frambois
Shaka Frambois
Published: 2012/05/21
Channel: Peter Banks
Le Cheesecake Framboise-Spéculoos
Le Cheesecake Framboise-Spéculoos
Published: 2017/06/22
Channel: Sweety
Recette du Royal au chocolat et aux framboises - 750 Grammes
Recette du Royal au chocolat et aux framboises - 750 Grammes
Published: 2014/12/02
Channel: 750g
Damon Downs ( of Echosphere ) "Frambois"  ambient  relaxation meditation space music
Damon Downs ( of Echosphere ) "Frambois" ambient relaxation meditation space music
Published: 2010/01/18
Channel: Damon Downs
Probablement le muffin le plus sain au monde !
Probablement le muffin le plus sain au monde !
Published: 2016/03/09
Channel: L'astucerie
Jeanfils  Le mec le plus chelou du monde ! Moi j
Jeanfils Le mec le plus chelou du monde ! Moi j'aime, les petites frambois, Moi J'aime, les petties
Published: 2017/07/03
Channel: KioveYT
Pour un dessert délicieusement beau : tarte zébrée aux framboises
Pour un dessert délicieusement beau : tarte zébrée aux framboises
Published: 2017/05/12
Channel: Bon Ap’
Biscuit roulé à la framboise par Pierre-Dominique Cécillon pour Larousse Cuisine
Biscuit roulé à la framboise par Pierre-Dominique Cécillon pour Larousse Cuisine
Published: 2010/05/06
Channel: LarousseCuisine
Glace à l
Glace à l'italienne sans sorbetière - Thermomix TM5
Published: 2016/07/25
Channel: CuistoPedro
Recette du Bavarois aux framboises et au chocolat
Recette du Bavarois aux framboises et au chocolat
Published: 2015/05/18
Channel: Commentfait Ton
Recette du bavarois aux framboises - Mousse aux framboises
Recette du bavarois aux framboises - Mousse aux framboises
Published: 2014/03/09
Channel: Commentfait Ton
Recette de tiramisu framboises et pétales de rose
Recette de tiramisu framboises et pétales de rose
Published: 2010/02/08
Channel: L'atelier des Chefs
Talladega 2012
Talladega 2012
Published: 2012/12/10
Channel: S Callaway
Chef Biography: Chef Florian Guillemenot
Chef Biography: Chef Florian Guillemenot
Published: 2016/07/21
Channel: Le Cordon Bleu Malaysia
Babar and Father Christmas
Babar and Father Christmas
Published: 2015/04/01
Channel: Treehouse Direct
Thursday Chat with Co-Host Ballistic BBQ |  Ep. 19
Thursday Chat with Co-Host Ballistic BBQ | Ep. 19
Published: 2017/02/09
Channel: T-ROY COOKS
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WIKIPEDIA ARTICLE

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The term framboid describes a micromorphological feature common to certain sedimentary minerals, particularly pyrite (FeS2). The first known use of the term is ascribed to Rust in 1935 and is derived from the French ‘la framboise’, meaning ‘raspberry’, reflecting the appearance of the structure under magnification.

Framboidal structure comprises roughly spherical aggregates of discrete equi-regular euhedral microcrystallites of around 0.5 μm in diameter, with the average aggregate size ranging from 5-20 μm. Framboid diameter tends to correlate positively with microcrystal size, and microcrystal packing is most commonly irregular and disordered. Framboids were once thought to be a fossilised bacterial colonies or microorganisms, but successful synthesis of this structure under laboratory conditions and observation of framboids in locations hostile to microbial life have discounted this theory.

Framboidal pyrite is commonly found in coastal sediments, for instance marsh soils, marine and estuarine sediments, and beach sands. It can also be observed in coal as well as magmatic and carbonate rocks. Other minerals known to exhibit framboidal structures include magnetite, hematite, and greigite. Greigite is considered an essential precursor of framboidal pyrite formation.

References[edit]

  • McElnea, A. E. (2002) ‘Assessing the Ability of Acid Sulfate Soil Laboratory Tests to Predict Environmental Risk and Lime Amelioration’. PhD Thesis, School of Land and Food Sciences, University of Queensland, Australia.
  • Ohfuji. H. and D. Rickard (2005) Experimental synthesis of framboids – a review. Earth-Science Reviews, 71:147-170 (Availability: ScienceDirect Database).
  • Rust, G.W. (1935) Colloidal primary copper ores at Cornwall mines, southeastern Missouri. Journal of Geology, 43:398-426.
  • Wilkin, R. T. and H.L. Barnes (1997) Formation processes of framboidal pyrite. Geochimica et Cosmochimica Acta, 61(2): 323-339 (Availability: ScienceDirect Database).


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