| GRD02W9S0 |
Felsic Intrusive
|
|
California |
0 |
Camp Elliott |
| GRD02WIS0 |
Gabbro
|
Hornblende Gabbro. Coarse Grain |
California |
1 |
Ritter 154, 16 D |
| GRD02WLS0 |
Granite
|
Sulfide bearing granitic rock. Oligoclase, K-spar, Quartz, Biotite with chalcopyrite and other sulfide minerals |
California |
0 |
Ritter 154, 15 B |
| GRD02WPS0 |
Diorite
|
Diorite |
California |
2 |
Ritter 154, 15 P |
| GRD02WQS0 |
Diorite
|
Hornblende Diorite |
California |
2 |
Ritter 154, 15 P |
| GRD02WRS0 |
Gabbro
|
Mylonitic gabbro |
California |
2 |
Ritter 154, 29 F |
| GRD02WSS0 |
Ultramafic Intrusive
|
Harzburgite |
California |
2 |
Ritter 154, 29 F |
| GRD02WTS0 |
Ultramafic Intrusive
|
Wehrlite |
California |
2 |
Ritter 154, 29 F |
| GRD02WUS0 |
Gabbro
|
Gabbro from Point Sal Ophiolite |
California |
2 |
Ritter 154, 29 F |
| GRD02WWS0 |
Granite
|
Microcline, Smoky Quartz, Horblende, Plagioclase |
Massachusetts |
0 |
Ritter 154, 15 B |
| GRD02WZS0 |
Anorthosite
|
Unknown origin, Anorthosite?. |
California |
4 |
Ritter 154, 16 F |
| GRD02X2S0 |
Granodiorite
|
Hornblende-Biotite Granodiorite |
California |
4 |
Ritter 154, 15 O |
| GRD02X7S0 |
Granite
|
No known information of origin and composition. Appears to be Granodiorite |
California |
0 |
Camp Elliott |
| GRD02XHS0 |
Diorite
|
Hornblende Biotite Quartz Diorite. La Posta Quartz Diorite |
California |
0 |
Ritter 154, 15 P |
| GRD02XUS0 |
Syenite
|
Nepheline bearing Syenite |
Wisconsin |
0 |
Ritter 154, 15 D |
| GRD02YDS0 |
Granite
|
Graphic Granite. Quartz-Plag. Pegmatitic |
|
0 |
Ritter 154, 11 A |
| GRD03Z2S0 |
Monzonite
|
Palm sized slab of monzonite. Grain size transitions from medium to fine grain across sample. |
California |
0 |
Ritter 154, 15 E |
| GRD03Z5S0 |
Mafic Intrusive
|
Great Whin Sill |
United Kingdom |
0 |
Ritter 154, 16 I |
| GRD03ZLS0 |
Granite
|
Chuar Group of Grand Canyon Supergroup. This is a granite, granites are not a part of the supergroup. Could be from intrusive body within supergroup |
Arizona |
0 |
Ritter 154, 29 H |
| GRD0405S0 |
Granodiorite
|
Boulder Creek Granodiorite. Plagioclase rich, near Tonalite composition. Hornblende bearing with minor Epidote and Sphene. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0406S0 |
Granodiorite
|
Boulder Creek Granodiorite. Somewhat foliated. Very low K-spar content, Tonalite composition. Hornblende bearing, with minor Epidote, Sphene, Apatite. Trace Allanite and Zircon. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0407S0 |
Granodiorite
|
Boulder Creek Granodiorite. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0408S0 |
Granodiorite
|
Boulder Creek Granodiorite. Porphyroblastic. Minor Allanite and Apatite with trace Zircon and Sphene. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0409S0 |
Monzonite
|
Twin Spruce Quartz Monzonite. Trace Allanite, Apatite and Zircon. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040AS0 |
Diorite
|
Biotite - Hornblende Quartz Diorite. Minor Apatite, Epidote, Shene. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040BS0 |
Intermediate Intrusive
|
Pyroxene bearing Hornblendite. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040CS0 |
Diorite
|
Dioritic inclusion. Quartz Monzodiorite. Contains light feldspar strings and knots. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040DS0 |
Granodiorite
|
Pegmatitic Pod. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040ES0 |
Granodiorite
|
Boulder Creek Granodiorite. Somewhat more leucocratic than normal. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040FS0 |
Granodiorite
|
Boulder Creek Granodiorite, migmatitic, with many feldspar strings and dikelets. |
Colorado |
0 |
Ritter 154, 29 J |
