| GRD0209S0 |
Mafic
|
Hornfels, metavolcanics; large dark sample. Original description: hornfels from Santiago Peak metavolcanics, takenon 11/15/1986 ES101 Field Trip, Stop #3; note epidote veins. |
California |
0 |
Ritter 154, 24 M |
| GRD0210S0 |
Mafic
|
Altered mafic pegmatite. Coarse- to very coarse-grained. Hornblende-quartz. Miarolitic cavities are still present with nicely terminated crystals preserved. Original description: Metamorphosed pegmatite or granophyre of M50. Hbl-qtz-plag. |
New York |
1 |
Ritter 154, 14 H |
| GRD0258S0 |
Mafic
|
Dark green cut coarse-grained samples. Two pieces: ~5x4x4 cm and ~4x3x2 cm from the cut face. Large feldspar in hand sample. Billet pieces. Original label: 21 September, 1975. |
Pacific Ocean |
1 |
Ritter 154, 37 E |
| GRD025AS0 |
Mafic
|
One small (~5x3x4 cm) cut dark green coarse-grained sample. Feldspar laths, quartz?, and magnetite crystals. Billet pieces. Original label: 21 September, 1975. |
Pacific Ocean |
1 |
Ritter 154, 37 E |
| GRD025BS0 |
Mafic
|
One small (~5x4x2 cm) uncut dark green medium-grained sample. Feldspar laths, serpentine, and magnetite crystals. Original label: 21 September, 1975. |
Pacific Ocean |
0 |
Ritter 154, 37 E |
| GRD025DS0 |
Mafic
|
Cut sample (originally ~6x6x6 cm subangular). Blue fine-grained with portions of sample Fe-stained. Thin white veins (quartz?). Slickenlines in hematite(?). Very dense. Billet piece. Not the same sample as ERDC-24D-2. Original label: 24 March, 1975, Type 2. |
Pacific Ocean |
1 |
Ritter 154, 37 E |
| GRD028VS0 |
Mafic
|
Large cut sample which measures ~5x6.5x6.5 cm from cut surface. Fine-grained green-grey interior with thin, light pink veins. Very high specific gravity. Mn-Fe crust on sample Billet. Original label: 14 August, 1968; fault gouge. |
Indian Ocean |
1 |
Ritter 154, 34 A |
| GRD028WS0 |
Mafic
|
A very large cut sample, measures ~8x7x8 cm from cut surface. Fine-grained green-grey crystalline interior with black and yellow orbs ~2 mm in diameter. Very high specific gravity. Mn-Fe crust on sample. Billet. Original label: 14 August, 1968. |
Indian Ocean |
2 |
Ritter 154, 34 A |
| GRD02AHS0 |
Mafic
|
Olivine metadiabase. Medium-grained plagioclase-pyroxene-garnet-amphibole (trace)-pyrite (trace)-olivine (relict). Original label: Metadiabase. |
New York |
1 |
Ritter 154, 14 H |
| GRD02AKS0 |
Mafic
|
Olivine metadiabase. Medium-grained pyroxene-garnet-plagioclase-amphibole (trace)-pyrite (trace)-olivine (relict). Original label: Metadiabase. Greenschist facies. |
New York |
1 |
Ritter 154, 14 H |
| GRD02ANS0 |
Mafic
|
Ilmenite-Garnet-Olivine-Plagioclase (minor). Original label: Skarn. |
New York |
0 |
Ritter 154, 14 H |
| GRD02B2S0 |
Mafic
|
Metagabbro. Medium-grained plagioclase-amphibole-phlogopite (trace)-pyrite (trace). |
|
0 |
Ritter 154, 14 H |
| GRD02EZS0 |
Mafic
|
Granular olivine, feldspar, and garnet. Original description: Metadiabase. |
New York |
0 |
Ritter 154, 14 H |
| GRD02Q1S0 |
Mafic
|
Two very dark and dense samples. Mostly olivine and pyroxene. Epidote? Garnets in one sample. |
California |
2 |
Ritter 154, 14 H |
| GRD047YS0 |
Mafic
|
Quartz veins. |
Philippines |
1 |
Ritter 154, 28 G |
