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colloform texture (mineralogy) -- Britannica Online Encyclopedia
Britannica online encyclopedia article on colloform texture (mineralogy),
www.britannica.com/EBchecked/topic/.../colloform-texture - Cached - Similar
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colloform: Definition from Answers.com
colloform ( ′kälə′förm ) ( geology ) Pertaining to the rounded, globular texture of mineral formed by colloidal.
www.answers.com/topic/colloform - Cached - Similar
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Growth controls in colloform pyrite
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by CD BARRIE - 2009 - Cited by 3 - Related articles
Primary colloform textures preserved in ore deposits can be a useful tool in understanding chang- ing conditions of ore formation due to the sequential ...
www.minsocam.org/MSA/AmMin/TOC/Abstracts/.../Barrie_p415_09...

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Note added at 11 mins (2010-08-11 17:29:10 GMT)
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http://docs.google.com/viewer?a=v&q=cache:8LHPpSjTrzEJ:www.a...
see page 16
under
COLOFORME
= colloidal
AND PAGE 75
And “ Melnicovita pirita coloforme “here:
1 INFORME DE MINERALOGÍA MUESTRA : Una de roca y sulfuros ...
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o Los porcentajes de los minerales tienen un valor aproximado y están considerados ... Fe S2 py. Melnicovita pirita coloforme. Pirrotita. Fe1-xS. Calcopirita ... cortan y remplazan algo a calcopirita, que se ha oxidado un poco ...
www.ancashperu.com/admin/images/.../0.85570700 1201906117.p...

• Ore paragenesis of recent hydrothermal deposits at the Cocos-Nazca ...
by W Tufar - 1986 - Cited by 7 - Related articles
Melnikovite-pyrite and intermediate product. (Figs. 5-10, 15) are associated in places with marca- site and pyrite in colloidal masses, e. g. in rhythmi- ...
www.springerlink.com/index/QK4634560152J275.pdf - Similar
• Framboidal – Colloform - Recrystallised Pyrite in the Granitoids ...
by N Ranganath - 2009 - Related articles
(Fig.4) indicate that colloidal pyrite is having the lowest ... (b) Melnikovite pyrite (MPY) occurring in association with framboidal pyrite (FPY) ...
www.springerlink.com/index/153242V41L3J4N62.pdf - Similar




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Note added at 12 mins (2010-08-11 17:30:48 GMT)
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Petrology, mineral chemistry, and exploration significance of Fe ...
by LA Tompkins - 1997 - Cited by 5 - Related articles
Ramdohr (1969) refers to 'colloform' pyrite as 'melnikovite', a name that has been discredited in favour of greigite, a thiospinel of Fe (Skinner et al., ...
linkinghub.elsevier.com/retrieve/pii/S0883292796000534