| GRD01OSS0 |
Granite
|
Flattish slab, good polish. Fine-grained. Original description: In Pyramind Peak granite. |
California |
1 |
Camp Elliott |
| GRD01OTS0 |
Granite
|
Original description: Pieces of polished rock, mainly 1 cm thick. In Pyramid Peak granite. |
California |
0 |
|
| GRD01OUS0 |
Granite
|
Original description: In Pyramid Peak granite. |
California |
0 |
|
| GRD01OVS0 |
Granite
|
Original description: In Pyramid Peak granite. |
California |
0 |
|
| GRD01OXS0 |
Felsic Intrusive
|
Original description: For petrology. |
California |
0 |
|
| GRD01OYS0 |
Granite
|
Decent-sized hand sample with billet. Original description: For petrology. |
California |
1 |
Camp Elliott |
| GRD01OZS0 |
Granite
|
Original description: From the very summit of granite knob, on float surface with complete hemispheric exposure. |
California |
0 |
|
| GRD01VDS0 |
Granite
|
Potassium feldspar-plagioclase-biotite-quartz-muscovite (trace). Slight to moderate foliation. Two micas. |
Alps |
0 |
Ritter 154, 19 B |
| GRD01VKS0 |
Granite
|
No foliation. Medium-grained, potassium-feldspar, quartz, plagioclase, biotite (trace). Billets. Original description: granitoid gneiss. |
North Carolina |
1 |
Ritter 154, 15 B |
| GRD024IS0 |
Granite
|
Smll uncut sample measuring ~4 cm in diameter. Chip in sample reveals an interior composed of medium-grained muscovite, quartz, and white feldspar. Thick white rind with a sandy texture. Original label: 28 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 D |
| GRD025ZS0 |
Felsic Intrusive
|
Three very small (~2x2x2 cm) white uncut pebbles in a bag. |
Pacific Ocean |
0 |
Ritter 154, 37 E |
| GRD026MS0 |
Syenite
|
Cut slab measuring ~6x6x2 cm from the cut face. Coarse-grained crystalline. Abundant grey feldspar and greenish pyroxene. Billet and billet pieces. |
Pacific Ocean |
2 |
Ritter 154, 37 F |
| GRD026NS0 |
Syenite
|
Small cut sample which measures ~3x3x2 cm from the cut face. Coarse-grained crystalline. Abundant grey feldspar and greenish pyroxene. Billet and billet pieces. |
Pacific Ocean |
2 |
Ritter 154, 37 F |
| GRD026OS0 |
Syenite
|
Small cut sample measures ~4x3x1.5 cm from the cut face. Medium-grained crystalline. Abundant white feldspar and greenish pyroxene. Billet and billet pieces. |
Pacific Ocean |
2 |
Ritter 154, 37 F |
| GRD02B6S0 |
Syenite
|
Garnet-quartz syenite. Hypidomorphic-granular. Coarse-grained. Plagioclase-quartz-magnetite-garnet. |
|
1 |
Ritter 154, 15 C |
| GRD02B7S0 |
Syenite
|
Clinopyroxene-plagioclase-quartz-amphibole-apatite-opaques. Medium-grained. |
|
1 |
Ritter 154, 15 C |
| GRD02IZS0 |
Monzonite
|
Large samples of pink monzonite. Plagioclase-potassium feldspar-amphibole-quartz. |
Canada |
0 |
Ritter 154, 15 E |
| GRD02N8S0 |
Granite
|
Small cut sample of granite. Original description: Block from road cut. |
California |
1 |
Ritter 154, 15 B |
| GRD02N9S0 |
Granite
|
Weathered sample of granite. Contains amphibole and biotite. Original description: Talus at foot of Washington column. |
California |
3 |
Ritter 154, 15 B |
| 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 |
| GRD02OVS0 |
Granite
|
Small sample of fine to medium-grained pink granite. Original label: Granitic aplite dikes intrusive into meta-tuffs Calif 1039-1041. |
California |
1 |
Camp Elliott |
| GRD02OZS0 |
Syenite
|
Porphyritic syenite. Original label: K-rich porphyritic syenite? Syeno-gabbro. Parker Dam Granite. 1.40 Ga. GSA Field Trip. |
California |
0 |
Ritter 154, 15 D |
| GRD02OZS1 |
Syenite
|
Porphyritic syenite. Original label: K-rich porphyritic syenite? Syeno-gabbro. Parker Dam Granite. 1.40 Ga. GSA Field Trip. |
California |
0 |
Ritter 154, 15 D |
| GRD02P3S0 |
Monzonite
|
Two nice samples of quartz monzonite. Nice megacrysts of plagioclase. Plagioclase-quartz-hornblende. Three billets. Original label: Quartz monzonite. |
California |
2 |
Ritter 154, 15 E |
| GRD02P7S0 |
Monzonite
|
Two billets of quartz monzonite. Original label: Granodorite. Quartz Monzonite. From moraine but typical of granitic rock on Gaddard Divide. These intrude diorite and hornfels andesite on southwest towards Goddard. |
California |
2 |
Camp Elliott |
| GRD02P8S0 |
Monzonite
|
Small sample of fine-grained pink granite. Two billets. Original label: Granite or altered granodorite? From moraine but typical of granitic rock on Gaddard Divide. These intrude diorite and hornfels andesite on southwest towards Goddard. |
California |
2 |
Camp Elliott |
| GRD02PJS0 |
Granite
|
Cut slab of porphyritic granite. Megacrysts of plagioclase. |
California |
4 |
Ritter 154, 15 B |
| GRD02Q2S0 |
Granite
|
Large (2 cm) pink orthoclase crystals, quartz, biotite. |
|
0 |
Ritter 154, 19 B |
| GRD02Q3S0 |
Granite
|
|
California |
0 |
Ritter 154, 15 A |
