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Coalingite Gallery

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Coalingite : Mg10Fe3+2[(OH)24|CO3] · 2H2O, Magnesite : MgCO3, Serpentine Group : D2[Si2O5](OH)4 + or - nH2O

Hunting Hill quarry (Rockville Crushed Stone Quarry; Travilah Quarry; Rockville Quarry; Bardon Stone Quarry), Rockville, Montgomery Co., Maryland, USA

Coalingite on serpentine with small hydromagnesite crystals on left side of photo. This Coalingite specimen consists metallic-looking flakes. Usually the Coalingite at Hunting Hill is fiberous. Collected by J. Wingard 10-04 and in my personal collection. Specimen is approximately 12 cm across.
 © J.N. WingardPhoto ID: 21460    View Count: 665

Coalingite : Mg10Fe3+2[(OH)24|CO3] · 2H2O

Hunting Hill quarry (Rockville Crushed Stone Quarry; Travilah Quarry; Rockville Quarry; Bardon Stone Quarry), Rockville, Montgomery Co., Maryland, USA

Field of view 22 mm. Collection M. Kampf No 99-065.
 © 2005 M. KampfPhoto ID: 31656    View Count: 388

Coalingite : Mg10Fe3+2[(OH)24|CO3] · 2H2O

Hunting Hill quarry (Rockville Crushed Stone Quarry; Travilah Quarry; Rockville Quarry; Bardon Stone Quarry), Rockville, Montgomery Co., Maryland, USA

Bronzy sub-metallic platy coalingite on serpentinite rock matrix, 5 cm field of view. S402-361 #293#
 © 2007, JGWPhoto ID: 138218    View Count: 120

Coalingite : Mg10Fe3+2[(OH)24|CO3] · 2H2O

Hunting Hill quarry (Rockville Crushed Stone Quarry; Travilah Quarry; Rockville Quarry; Bardon Stone Quarry), Rockville, Montgomery Co., Maryland, USA

Coalingite in golden micaceous flakes. Alan Goldstein specimen (1347) and photo.
 © Alan GoldsteinPhoto ID: 145191    View Count: 75
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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 29th Nov 2009 17:16:46