| GRD02P4S0 |
Non-layered Gneiss
|
Small sample of dark colored augen gneiss with plagioclase porphyroblasts. Billets. Original label: Calif 1085-1086 are concordant with this forming a screen of metamorphic rocks SE of Muir Pass. |
California |
2 |
Ritter 154, 14 A |
| GRD02P5S0 |
Relict Textures
|
Small samples of stretched pebble conglomerate. Original label: Meta-tuff? Calif 1084-1086 are concordant with this forming a screen of metamorphic rocks SE of Muir Pass. |
California |
2 |
Ritter 154, 14 O |
| GRD02P6S0 |
Mylonite
|
Small sample of grey mylonite. Original label: Mylonite. Calif 1084-1086 are concordant with this forming a screen of metamorphic rocks SE of Muir Pass. |
California |
2 |
Ritter 154, 24 I |
| GRD02PFS0 |
Ga-bearing Schist
|
Oricopia Schist. Garnet-bearing schist cobble. One lense of quartz runs through the middle of the sample. Billets. Original label: Mecca Hills clast. Fall Field trip 1988. |
California |
2 |
Ritter 154, 14 D |
| GRD02PGS0 |
Ga-bearing Schist
|
Quartz-Muscovite-Garnet-Cordierite Oricopia Schist. Garnet-bearing schist cobble. Patch of calcite on the exterior of the sample. Billets. Original label: Mecca Hills clast. Fall Field trip 1988. |
California |
2 |
Ritter 154, 14 C |
| GRD02PHS0 |
Quartzite
|
Two large samples of kyanite-bearing quartzite. |
California |
2 |
Ritter 154, 3 H |
| GRD02PTS0 |
Schist
|
Small sample of green schist with small white feldspar augen. Original label: Orocopia Schist. |
California |
2 |
Ritter 154, 14 C |
| GRD02PUS0 |
Schist
|
Sample of folded green schist. Original label: Orocopia Schist. |
California |
4 |
Ritter 154, 3 H |
| GRD02Q1S0 |
Mafic
|
Two very dark and dense samples. Mostly olivine and pyroxene. Epidote? Garnets in one sample. |
California |
2 |
Ritter 154, 14 H |
| GRD02RBS0 |
Greenschist
|
Orocopia Schist. Two green schist samples. Quartz-Muscovite-Chlorite-Staurolite-Cordierite(minor) |
|
4 |
Ritter 154, 3 H |
| GRD02RCS0 |
Ga-bearing Schist
|
Garnet mica schist, well foliated. Muscovite-Quartz-Garnet-Chlorite-Biotite. |
|
1 |
Ritter 154, 3 H |
| GRD02RDS0 |
Layered Gneiss
|
Banded Gneiss, Amphibolite Facies Quartzo-Feldspathic Protolith |
|
5 |
Ritter 154, 3 H |
| GRD02RES0 |
Ga-bearing Schist
|
Large rotated garnet porphyroblasts, approximately 1cm. Garnet-Biotite-Muscovite-Quartz |
|
4 |
Ritter 154, 3 H |
| GRD02RFS0 |
Phyllite
|
Phyllite with epidote. |
California |
3 |
Ritter 154, 3 G |
| GRD02RGS0 |
Greenschist
|
Sheared greenschist assemblage |
California |
6 |
Ritter 154, 3 G |
| GRD02RHS0 |
Schist
|
Meta-graywacke phase |
California |
1 |
Ritter 154, 3 G |
| GRD02RIS0 |
Layered Gneiss
|
Feldspar-Quartz-Biotite Large feldspars approximately 1-2cm. |
|
9 |
Ritter 154, 3 G |
| GRD02S3S0 |
Serpentinite
|
Talc vein around 1 inch thick with wall rock attached(serpentinite). Occasional sulfide blebs |
California |
0 |
Ritter 154, 14 M |
| GRD02S4S0 |
Serpentinite
|
Coast Range Ophiolite, Cross-fracture serpentinized, bastite and opx. Black serpentine. |
California |
0 |
Ritter 154, 24 G |
| GRD02S6S0 |
Serpentinite
|
Bastite ops visible.Red hue throughout, black serpentine, Red could be cinnabar which is mined in this region. Coast range ophiolite. |
California |
0 |
Ritter 154, 24 G |
| GRD02S7S0 |
Serpentinite
|
Rich in magnetite, multiple shear directions with silken fibers. |
California |
0 |
Ritter 154, 14 M |
| GRD02S8S0 |
Serpentinite
|
Cross fracture serpentinized peridotite. Black serpentine. Coast Range ophiolite. |
California |
0 |
Ritter 154, 14 M |
| GRD02S9S0 |
Calcsilicate (Skarn)
|
Magnesium silicate skarn along a fault-controlled contact of syenite to quartz monzonite. Part of Vulcan mine-Burro Prospect. |
California |
0 |
Ritter 154, 14 K |
| GRD02S9S1 |
Calcsilicate (Skarn)
|
Magnesium silicate skarn along a fault-controlled contact of syenite to quartz monzonite. Part of Vulcan mine-Burro Prospect. |
California |
0 |
Ritter 154, 24 M |
| GRD02SES0 |
Quartzite
|
Medicine Peak Quartzite. PE quartzite with some preserved crossbedding, kyanite bearing in places. |
Rt 130 near Mirror Lake in Snowy Range |
0 |
Ritter 154, 24 F |
| GRD02T2S0 |
Serpentinite
|
Anastomosing texture with serpentine weathering white on exterior. Appears to have bronzite within red patches. Trinity Ophiolite-Eunice Bluff Float |
California |
0 |
Ritter 154, 14 M |
| GRD02T7S0 |
Augen Gneiss
|
Meta-gneiss containing large K-spars(2-3 cm) intermingled with quartz and biotite. Moderately developed foliation |
Brazil |
0 |
Ritter 154, 14 B |
| GRD02T8S0 |
Calcsilicate (Skarn)
|
Garnet-Calcite-Epidote-Quartz |
|
0 |
Ritter 154, 14 K |
| GRD02TAS0 |
Porphyroblasts
|
Staurolite-Garnet Schist. Large Staurolite porphyroblasts(1-2 cm) with garnets(~1 mm), micaceous. Unknown origin. |
|
0 |
Ritter 154, 14 O |
| GRD02TBS0 |
Ga-bearing Schist
|
Garnet Amphibolite with Staurolite. Micaceous schist with small (<1mm) garnet porphyroblasts and (~4-7mm) staurolite porphyroblasts. |
|
0 |
Ritter 154, 14 C |
