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Sample Type is Metamorphic › Foliated › Gneiss

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD02X0S0 Layered Gneiss Banded Gneiss. Biotite - Quartz - Plag California 4 Ritter 154, 14 A
GRD02X1S0 Layered Gneiss Unknown location of origin and age. California 0 Ritter 154, 24 B
GRD02XFS0 Non-layered Gneiss Qf gneiss interlayered with marble. East side of batholith California 0 Camp Elliott
GRD02XMS0 Layered Gneiss Quartz-Amphibole and Calcite-Epidote(?) bands(~1cm thick) interlayered. Unable to find further location details through web searches. La Costa Verde Quarry 0 Ritter 154, 14 B
GRD02Y9S0 Gneiss Plagioclase, Kspar, Biotite Gneiss with small Garnet porphyroblast. Original label : Granitic Flaser Gneiss - Blastomylonite California 0 Ritter 154, 24 B
GRD040GS0 Gneiss Granitic Gneiss. Foliated. K-spar dominant. Colorado 0 Ritter 154, 29 J
GRD040KS0 Gneiss Sillimanite gneiss Colorado 0 Ritter 154, 29 J
GRD040NS0 Non-layered Gneiss Cordierite-Garnet-Gedrite Gneiss. Two samples. Colorado 0 Ritter 154, 29 J
GRD040QS0 Gneiss Cordierite-Garnet-Sillimanite Gneiss Colorado 0 Ritter 154, 29 J
GRD041JS0 Migmatitic Gneiss Quartz vein injected into Gneiss ( a rock, banded with alternating layers) showing rolls. Carries Chalcopyrite-Pyrite. California 0 Ritter 154, 14 P
GRD043CS0 Gneiss South Africa 0 Ritter 154, 14 B
GRD043HS0 Layered Gneiss Quartz-Plagioclase-Kspar-Biotite-Garnet Gneiss New York 0 Ritter 154, 14 B
GRD0461S0 Gneiss Possibly Orocopia Schist. Amphibolite gneiss/Cataclasite(?) California 2 Ritter 154, 14 G
GRD049GS0 Gneiss Philippines 1 Camp Elliott