| GRD02NAS0 |
Granite
|
Granite. Original description: Pendant of layered quartzite and shale in granites. (original description likely for different sample)at Lake Ellery and Tioga Pass Road |
California |
0 |
Ritter 154, 19 B |
| GRD02NBS0 |
Monzonite
|
Large sample of quartz monzonite. Original description: El Capitan Quartz Monzonite. Large slab on roadside. Quartz orthoclase plagioclase with minor sphene and nice zoning, biotite(some altering to chlorite). |
California |
5 |
Ritter 154, 3 F |
| GRD02NCS0 |
Granodiorite
|
2.5 cm aplite dike cutting granodiorite. Original description: Aplite dike cutting weakly foliated granodiorite atp(?) Also mafic hornfels inclusions and streamers. |
California |
0 |
Ritter 154, 16 Q |
| GRD02NDS0 |
Pumice
|
Sparsely porphyritic pumice. Trace biotite. Original description: Perlitic Pumice. |
California |
0 |
Camp Elliott |
| GRD02NES0 |
Ga-bearing Schist
|
Dark, foliated sample. Folded. Quartz-pyroxene- phyllosilicates-plagioclase-garnet-opaques. Original description: Metaseds. |
California |
1 |
Ritter 154, 24 H |
| GRD02NFS0 |
Eclogite
|
Original description: Eclogite, Lawsonite locality (Tiburon Uplands Nature Preserve) 2 hand samples. |
California |
5 |
Ritter 154, 3 H |
| GRD02NGS0 |
Non-layered Gneiss
|
Sample of biotite-orthocase-quartz-oxides augen gniess. Augen composed of orthoclase and quartz. Original description: Augen gneiss. Probably cataclasite. |
California |
0 |
Ritter 154, 24 B |
| GRD02NHS0 |
Gabbro
|
Fine-grained green gabbro. Carbonate crust and veins in sample. |
California |
1 |
Camp Elliott |
| GRD02NIS0 |
Basalt
|
Small weathered sample of basalt. Patches of more coarsely grained basalt? |
California |
0 |
Camp Elliott |
| GRD02NJS0 |
Gabbro
|
Fine-grained green gabbro. Carbonate spots and veins in sample. |
California |
0 |
Camp Elliott |
| GRD02NKS0 |
Gabbro
|
Coarse-grained green gabbro. Pyroxene. Nice hand sample. |
California |
1 |
Ritter 154, 16 C |
| GRD02NLS0 |
Blueschist
|
Large sample of blue schist. Sample is fine-grained. |
California |
0 |
Camp Elliott |
| GRD02NMS0 |
Gabbro
|
Sample of coarse-grained green gabbro. |
California |
0 |
Camp Elliott |
| GRD02NNS0 |
Ash
|
Sample of pink very fine-grained ash tuff. Veins and lenses of calcite. Spots of Fe-stains. |
California |
0 |
Ritter 154, 22 H |
| GRD02NOS0 |
Gabbro
|
Small sample of coarse-grained gabbro. Fair amount of metallic oxides. |
California |
0 |
Camp Elliott |
| GRD02NPS0 |
Gabbro
|
Two small samples of coarse-grained gabbro. One sample could be made into a billet. |
California |
0 |
Camp Elliott |
| GRD02NQS0 |
Anorthosite
|
Anorthosite. 95% orthoclase. Trace oxides. |
California |
0 |
Ritter 154, 20 D |
| GRD02NRS0 |
Gabbro
|
Small sample of medium grained gabbro. 50% orthoclase - 50% amphibole. |
California |
0 |
Camp Elliott |
| GRD02NSS0 |
Gabbro
|
Small sample of coarse grained gabbro. 50% orthoclase - 50% amphibole. |
California |
0 |
Ritter 154, 16 D |
| GRD02NTS0 |
Non-layered Gneiss
|
Medium sized sample of a mica-poor gneiss. Large garnet crystals. Foliated amphibole. |
California |
0 |
Ritter 154, 24 B |
| GRD02NUS0 |
Basalt
|
Amphibole phryic basalt. Original label: Basalt dike - cutting granodiorite. |
California |
0 |
Ritter 154, 20 E |
| GRD02NVS0 |
Blueschist
|
Garnet bearing blueschist with stringers of green minerals. Original label: From a knocker. Garnet, pumpellyite, phueugite? |
California |
4 |
Ritter 154, 3 G |
| GRD02NWS0 |
Gabbro
|
Plagioclase-rich gabbro with Fe-stained crust on sample. Original label: Gabbro. Plagioclase (An55), Hypersthene (many with pyroxene overgrowths), opaques form a lattice-like pattern. A few apatite crystals. Numerous complex twins amo(?)-orthopyroxene-clinopyroxene-olivine-hornblende-spinel. |
California |
4 |
Ritter 154, 3 E |
| GRD02NXS0 |
Lineation
|
Calaveras fm. Small grey sample of streched pebble conglomerate. Original label: Pebble phyllite - stretched pebbles. Fall Field trip 1981 same site as Calif 644 |
California |
0 |
Ritter 154, 24 H |
| GRD02NYS0 |
Phyllite
|
Small grey sample of a dense phyllite. Stretched pebbles/minerals? Original label: Metasediment. Schist pendant. |
California |
1 |
Ritter 154, 14 E |
| GRD02NZS0 |
Slate
|
Small sample of dark slate. Foliated. Original label: Metasediment. Schist pendant. |
California |
1 |
Ritter 154, 14 F |
| GRD02O0S0 |
Impure Marble
|
Small sample of marble. Portions of marble are white, brown, and green. Original label: Marble. Schist pendant. |
California |
0 |
Camp Elliott |
| GRD02O1S0 |
Schist
|
Small sample of well foliated, mica-poor schist. Original label: Metavolcanic? Schist pendant. |
California |
1 |
Ritter 154, 24 C |
| GRD02O2S0 |
Slate
|
Very small sample of slate. Original label: Metasediment? Metagreywacke? Schist pendant. |
California |
0 |
Camp Elliott |
| GRD02O3S0 |
Quartzite
|
Two slabs slightly bedded quartzite. |
California |
3 |
Ritter 154, 14 L |
