Difference between revisions of "Coquimbite"

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[[File:Coquimbite2.jpg|thumb|Coquimbite]]
 
[[File:Coquimbite2.jpg|thumb|Coquimbite]]
 
== Description ==
 
== Description ==
 
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[[File:Coquimbite C100x.jpg|thumb|Coquimbite at 100x (visible light left; UV light right)]]
 
A yellowish brown to violet hydrated iron sulfate mineral. Coquimbite was named after the province of Coquimbo in Chile where it was first described in 1841.
 
A yellowish brown to violet hydrated iron sulfate mineral. Coquimbite was named after the province of Coquimbo in Chile where it was first described in 1841.
  
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coquimbit; coquimbita
 
coquimbit; coquimbita
  
== Other Properties ==
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[[[SliderGallery rightalign| Slide4_coquimbite.PNG~XRF]]]
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==Physical and Chemical Properties==
  
Crystal structure is massive or granular, but may occur in plates or prisms. Fracture = uneven  Cleavage = imperfect  Luster=vitreous  Streak = white
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* Crystal structure is massive or granular, but may occur in plates or prisms.  
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* Fracture = uneven   
 +
* Cleavage = imperfect   
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* Luster = vitreous   
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* Streak = white
  
[[File:Coquimbite C100x.jpg|thumb|Coquimbite]]
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
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|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
| 2.0-2.1
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| 2.0-2.1 g/ml
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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|}
 
|}
  
== Additional Information ==
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==Resources and Citations==
 
 
Web Minerals: [http://webmineral.com/data/Coquimbite.shtml Coquimbite]
 
 
 
== Authority ==
 
  
* Website address 1  Comment: Webminerals at http://webmineral.com/data/Coquimbite.shtml;
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* Web Minerals: [http://webmineral.com/data/Coquimbite.shtml Coquimbite]
  
* Website address 2  Comment: Mindat at http://www.mindat.org/min-1126.html
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* Mindat at http://www.mindat.org/min-1126.html
  
* Website address 3  Comment: http://labs.sci.qut.edu.au/minerals/mineral%20general%20descriptions/C/coquimbitepcd.htm
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* Website: http://labs.sci.qut.edu.au/minerals/mineral%20general%20descriptions/C/coquimbitepcd.htm
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 12:45, 5 July 2022

Coquimbite

Description

Coquimbite at 100x (visible light left; UV light right)

A yellowish brown to violet hydrated iron sulfate mineral. Coquimbite was named after the province of Coquimbo in Chile where it was first described in 1841.

Synonyms and Related Terms

coquimbit; coquimbita

XRF

Slide4 coquimbite.PNG


Physical and Chemical Properties

  • Crystal structure is massive or granular, but may occur in plates or prisms.
  • Fracture = uneven
  • Cleavage = imperfect
  • Luster = vitreous
  • Streak = white
Composition Fe2(SO4)3.9H2O
Mohs Hardness 2.5
Density 2.0-2.1 g/ml
Molecular Weight 562.02
Refractive Index 1.55; 1.557

Resources and Citations