| GRD029BS0 |
Serpentinite
|
Small (~6x3x3.5 cm), rounded sample. Teal serpentine with dark blue spots surrounding magnetite crystals. Teal serpentine vein in the sample. Two billet pieces. Original label: 21 August, 1968. Serpentinite. |
Indian Ocean |
1 |
Ritter 154, 34 B |
| GRD029CS0 |
Serpentinite
|
Large (~8x11x9 cm from the cut face) sample glued to a red plastic dredge cap. Green serpentinite with large blue crystals, white veins with blue rims, and patches of chrysotile. Some magnetite crystals. The top of the sample looks like a thin layer (~0.5 cm) of carbonate-supported breccia. Original label: 21 August, 1968. |
Indian Ocean |
1 |
Ritter 154, 34 B |
| GRD02A9S0 |
Dolomite Marble
|
Banding/relict bedding? Cryptocrystalline to very coarse-grained. Mainly composed of dolomite and thin, black dendrites (pyrolusite?). Original label: Chert? |
|
0 |
Ritter 154, 14 J |
| 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 |
| GRD02AJS0 |
Quartzofeldspathic
|
Contact between pink quartz-plagioclase-magnetite quartz and dark magnetite-plagioclase-quartz(?) layer |
|
0 |
Ritter 154, 24 I |
| 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 |
| GRD02ALS0 |
Amphibolite
|
Fine-grained pyroxene/amphibole-plagioclase. Original label: fine-grained gneiss. |
California |
0 |
Ritter 154, 14 G |
| GRD02AMS0 |
Quartzofeldspathic
|
Metavolcanic. Fine-grained amphibole-quartz-plagioclase (trace). Fe-hydroxide stains. Original label: Meta-volcanic. Jur-Cret. |
California |
1 |
Ritter 154, 14 H |
| GRD02ANS0 |
Mafic
|
Ilmenite-Garnet-Olivine-Plagioclase (minor). Original label: Skarn. |
New York |
0 |
Ritter 154, 14 H |
| GRD02B0S0 |
Quartzofeldspathic
|
Plagioclase-amphibole. Medium-grained. |
|
0 |
Ritter 154, 24 F |
| GRD02B2S0 |
Mafic
|
Metagabbro. Medium-grained plagioclase-amphibole-phlogopite (trace)-pyrite (trace). |
|
0 |
Ritter 154, 14 H |
| GRD02B5S0 |
Granulite
|
Fine-grained quartz-plagioclase-opaques-clinopyroxene granulite. |
|
1 |
Ritter 154, 14 N |
| GRD02BAS0 |
Dolomite Marble
|
Coarse-grained, white dolomite marble. |
California |
0 |
Ritter 154, 14 J |
| GRD02BTS0 |
Amphibolite
|
Abundant dark green amphibole with white interstitial mineral. Slight foliation. |
|
2 |
Ritter 154, 14 G |
| GRD02BUS0 |
Calcsilicate (Skarn)
|
Large calcite crystals with nice cleavage. Small dark and light green pyroxene crystals. |
|
1 |
Ritter 154, 14 K |
| GRD02C0S0 |
Quartzofeldspathic
|
Hornblende-quartz-phologopite. Original label: Grenville Quartzite. |
New York |
0 |
Ritter 154, 24 F |
| GRD02C2S0 |
Calcsilicate (Skarn)
|
Large, beautiful sample. Epidote-potassium feldspar-calcite. Original label: Museum quality epidote. |
Unknown |
0 |
Ritter 154, 14 K |
| GRD02C4S0 |
Quartzite
|
Small, unremarkable sample of quartzite. Faint bedding. Light grey. Not cut. |
France |
0 |
Camp Elliott |
| GRD02E4S0 |
Serpentinite
|
Serpentinite. Contains magnetite. Billet. Probably from Ligurian ophiolite. |
Italy |
1 |
Ritter 154, 14 M |
| GRD02EDS0 |
Calcite Marble
|
Grey coarse-grained marble. Very nice crystals. |
California |
0 |
Ritter 154, 14 J |
| GRD02EDS1 |
Calcite Marble
|
Grey and white coarse-grained marble. Very nice crystals. |
California |
0 |
Ritter 154, 24 E |
| GRD02EFS0 |
Granulite
|
Quartz-biotite-garnet. Garnet porphyroblasts. |
|
0 |
Ritter 154, 24 E |
| GRD02EFS1 |
Granulite
|
Quartz-biotite-garnet. Garnet porphyroblasts. |
|
0 |
Ritter 154, 14 N |
| GRD02EMS0 |
Calcsilicate (Skarn)
|
Coarse-grained calcsilicate. Very soft (Mohs hardness ~2). Chicken-wire appearance of dark rings. |
|
0 |
Ritter 154, 14 K |
| GRD02EZS0 |
Mafic
|
Granular olivine, feldspar, and garnet. Original description: Metadiabase. |
New York |
0 |
Ritter 154, 14 H |
| GRD02F0S0 |
Quartzofeldspathic
|
Coarse-grained wollastonite-plagioclase-quartz (trace). Original description: Calcite-wollastonite skarn. |
|
0 |
Ritter 154, 14 K |
| GRD02F5S0 |
Serpentinite
|
Dark serpentinite with light green band and veinlets. Some quartz in the lighter parts? Original description: Serpentine. Verde Antique. |
|
0 |
Ritter 154, 14 M |
| GRD02F6S0 |
Serpentinite
|
Contact between dark serpentinite with light green asbestiform amphibole. Some pyrite. Original description: Asbestiform amphibole (actinolite -tremolite?) |
|
1 |
Ritter 154, 14 M |
| GRD02H9S0 |
Blueschist
|
Blueschist. Lithic-rich. Billet. Original label: Semischist, Patrick Point. |
California |
1 |
Ritter 154, 24 D |
| GRD02HCS0 |
Marble
|
Highly recrystallized limestone/marble. Dark grey with white calcite veins. Billet. |
California |
0 |
Camp Elliott |
