| GRD02XJS0 |
Schist
|
Orocopia Schist Feb 2000. Large sample of Orocopia Schist, Meta-basalt(?) |
California |
0 |
Ritter 154, 14 I |
| 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 |
| GRD03YMS0 |
Phyllite
|
Lardeau Formation. Phyllite with sheared marble inclusion. |
Canada |
0 |
Ritter 154, 14 E |
| GRD03Z3S0 |
Marble
|
Pink marble, fresh. Palm sized sample and a single billet |
Georgia |
0 |
Ritter 154, 14 J |
| GRD03Z6S0 |
Slate
|
Black slate |
California |
0 |
Ritter 154, 14 F |
| GRD03Z7S0 |
Blueschist
|
Franciscan Complex. Garnet, glaucophane, lawsonite blueschist. (Large euhedral porphyroblasts of garnet and lawsonite enclose and are surrounded by glauconite and sphene prisms. Very clean rock) - W.G. Ernst |
California |
0 |
Ritter 154, 24 D |
| GRD03ZJS0 |
Schist
|
Vishnu Schist |
Arizona |
0 |
Ritter 154, 29 H |
| 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 |
| GRD0416S0 |
Quartzite
|
Stirling Formation. |
California |
0 |
Ritter 154, 14 L |
| GRD041IS0 |
Schist
|
Tourmaline-Quartz-Microcline Schist. Produced through wallrock interaction with Tip Top Pegmatite |
South Dakota |
0 |
Ritter 154, 14 D |
| 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 |
| GRD041LS0 |
Calcite Marble
|
Grand Rapids group. From UCLA Department of Geology |
Michigan |
1 |
Ritter 154, 14 J |
| GRD041US0 |
Amphibolite
|
Occurs as huge blocks in serpentinite. |
Puerto Rico |
0 |
Ritter 154, 29 L |
| GRD041VS0 |
Serpentinite
|
|
Puerto Rico |
0 |
Ritter 154, 29 L |
| GRD042IS0 |
Serpentinite
|
chromite bearing serpentinized ultramafic |
California |
0 |
Ritter 154, 20 K |
| GRD042WS0 |
Calcsilicate (Skarn)
|
contact between coarse, subhedral amphibolite and coarse grained pink calcite with ox |
Canada |
0 |
Ritter 154, 14 K |
| GRD042YS0 |
Metamorphic Structures
|
mylonite, two samples |
|
0 |
Ritter 154, 14 O |
| GRD0435S0 |
Amphibolite
|
Seminoe Mountain Greenstone Belt |
Wyoming |
0 |
Ritter 154, 14 G |
| GRD043CS0 |
Gneiss
|
|
South Africa |
0 |
Ritter 154, 14 B |
| GRD043DS0 |
Amphibolite
|
fresh amphibolite with grains ranging 1 to 2 mm |
New York |
0 |
Ritter 154, 14 G |
| GRD043ES0 |
Amphibolite
|
very fresh amphibolite sample with moderate lineation |
New York |
1 |
Ritter 154, 14 G |
| GRD043FS0 |
Amphibolite
|
very fresh amphibolite with leucocratic bands |
New York |
1 |
Ritter 154, 14 G |
| GRD043GS0 |
Amphibolite
|
Nice thin section |
Utah |
1 |
Ritter 154, 14 G |
| GRD043HS0 |
Layered Gneiss
|
Quartz-Plagioclase-Kspar-Biotite-Garnet Gneiss |
New York |
0 |
Ritter 154, 14 B |
| GRD043IS0 |
Schist
|
Red Creek Quartzite-Mica Schist |
Utah |
1 |
Ritter 154, 14 L |
| GRD045YS0 |
Mylonite
|
Shear zone mylonite |
California |
2 |
Ritter 154, 14 O |
