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Diopside from
Grallagh, Clifden, Connemara, Galway County, Connacht, Ireland


Classification
Species:Diopside
Formula:CaMgSi2O6
Chemical Analyses:
Oxide wt%:
1
SiO252.59 %
TiO20.06 %
Al2O30.70 %
Fe2O31.15 %
FeO6.27 %
MgO13.23 %
MnO0.48 %
CaO24.83 %
Na2O0.17 %
Total:99.48 %
Empirical formulas:
1(Na0.01Ca1.00)ÎĢ1.01(Mg0.74Fe2+0.20Mn0.02 Fe3+0.03) ÎĢ 0.99 (Si1.97Al0.03)2.00O6
Sample references:
1 -
Ahmed-Said, Y., Leake, Bernard E. (1996) The conditions of metamorphism of a grossular—wollastonite vesuvianite skarn from the Omey Granite, Connemara, western Ireland, with special reference to the chemistry of vesuvianite. Mineralogical Magazine, 60 (401) 541-550 doi:10.1180/minmag.1996.060.401.01
Comments:Diopside (<1 mm) occurs as isolated grains or as inclusions in anhedral garnet and vesuvianite.
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Diopside data
Locality Data:Click here to view Grallagh, Clifden, Connemara, Galway County, Connacht, Ireland
Data Identifiers
Mindat Occurrence Record ID:772574
Long-form Identifier:1:3:772574:6
GUID (UUID V4):0
Nearest other occurrences of Diopside
1.3km (0.8 miles) ⓘBarnahallia, Connemara, Galway County, Connacht, Ireland
47.9km (29.8 miles) ⓘCurraghduff, Glan Mines, Oughterard, Connemara, Galway County, Connacht, Ireland
References
Dr Richard Unitt Collection
Ahmed-Said, Y., Leake, Bernard E. (1996) The conditions of metamorphism of a grossular—wollastonite vesuvianite skarn from the Omey Granite, Connemara, western Ireland, with special reference to the chemistry of vesuvianite. Mineralogical Magazine, 60 (401) 541-550 doi:10.1180/minmag.1996.060.401.01
 
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