Mindat Logo

Grandidierite from
Almgjotheii, Flatestøl, Lund, Rogaland, Norway

Comments:Belongs to M2 assemblage (cf. Eur. J. Mineral. , 1991, 3, pp. 367-386).
Ferroan (Fe/(Fe+Mg)= 0,50-0,67.
Habit:prisms up to 1,5 cm long & 0,5 cm across; coarse and finegrained grains
Colour:deep blue-green
Quality of samples:not specified / average specimens
Validity:Believed Valid
References:Grew, E. S. et al. (1998): Werdingite, a borosilicate new to granitic pegmatites, The Canadian Mineralogist 36, 399-414
Mineral Data:Click here to view Grandidierite data
Locality Data:Click here to view Almgjotheii, Flatestøl, Lund, Rogaland, Norway
Mineral and/or Locality  
Search Google  
Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: December 19, 2014 14:24:55
Mineral and Locality Search
and/or Locality:
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds