| GRD01GCS0 |
Serpentinite
|
Original description: Serpentinite, Late Paleozoic. |
United Kingdom |
0 |
Ritter 154, 14 M |
| GRD01ZYS0 |
Serpentinite
|
Very fine-grained (almost glassy) brown serpentinite. Small sample with cream-colored veinlets. |
|
1 |
Ritter 154, 14 M |
| GRD020NS0 |
Serpentinite
|
Green serpentinized rock; Small, rounded light green clasts (relict olivine?) and a few thin black minerals (magnetite?) in a dark green matrix. Original description: verde antique |
Mexico |
0 |
Ritter 154, 3 G |
| GRD020OS0 |
Serpentinite
|
Two small cut samples. Both are sheared. The slightly larger sample has dark green clasts in a light green matrix. Abundant serpentine on the surface. The smaller sample has dark blue clasts in a light grey matrix. The sample has muscovite on the surface. Billet. Original description: sheared serpentine rock. |
Mexico |
1 |
Ritter 154, 14 M |
| GRD020PS0 |
Serpentinite
|
Small dark green serpentinite sample. Vitreous luster. |
|
0 |
Ritter 154, 24 G |
| GRD020QS0 |
Serpentinite
|
Large sample mainly composed of serpentine and clay minerals. There is an obvious distinction between the core of the sample and the rim. The core is very fine-grained light green with thin blue veins. The rim is composed of vitreous light to dark green serpentine with a soapy/greasy feel. Serpentized, altered ultramafic rock. |
|
0 |
Ritter 154, 14 M |
| GRD0211S0 |
Serpentinite
|
Small sample of serpentine replacing potassium feldspar. Gradational colors from brown-green-blue-purple-white. Original description: serpentine replacing feldspar. |
New York |
0 |
Ritter 154, 24 G |
| GRD0212S0 |
Serpentinite
|
Massive serpentine-talc rock. Dull dark green with thin white crystalline veins and small crystals of pyrite and large crystals of magnetite. Original label: verd antique. |
Vermont |
1 |
Ritter 154, 3 H |
| GRD0213S0 |
Serpentinite
|
Large sample of magnesite-bearing serpentine. Original label: Glenarm Serpentine; slickensides. |
Maryland |
1 |
Ritter 154, 14 M |
| GRD0215S0 |
Serpentinite
|
Medium-sized sample of serpentinite that has a obvious distinction between the interior and exterior of the sample. The interior is very fine-grained and light green with abundant blue veinlets and magnetite crystals. The rim of the sample is blue while the exterior is light-green and golden serpentine with slickenslides. Antigorite? |
Canada |
0 |
Ritter 154, 24 G |
| GRD021VS0 |
Serpentinite
|
Large, cut sample (~9x8x5 cm from cut face) olive green sample with magnetite lenses. Fe-Mn crust on sample. Billet pieces. Original label: 20 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 B |
| GRD021XS0 |
Serpentinite
|
Medium-sized (~6x4x4.5 cm from the cut face) sample composed of light green and black-dark green spots of serpentine. Abundant magnetite. Billet pieces. Original label: 20 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 B |
| GRD0221S0 |
Serpentinite
|
Large (~8 cm in diameter) uncut dark green sample with a few patches of dull grey magnetite and light green serpentinite. Patchy Fe-Mn crust on sample. Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD0222S0 |
Serpentinite
|
Small (~3 cm in diameter) uncut blue-green sample with light green serpentine and patches of magnetite on the surface. Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD0223S0 |
Serpentinite
|
Small (~3 cm in diameter) uncut blue-green sample with light green serpentine, patches of magnetite, and Fe-oxide stains on the surface. Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD0224S0 |
Serpentinite
|
Large (~8 cm in diameter) uncut sample. Earthy cream-colored surface, but patches in the surface reveal a vitreous light green interior with occasional black crystals (magnetite?). Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD0225S0 |
Serpentinite
|
Medium-sized (~9x6x4 cm) uncut sample. Earthy cream-colored surface, but patches reveal a vitreous light green interior with occasional black crystals (magnetite?). Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD0226S0 |
Serpentinite
|
Small (~3 cm in diameter) uncut sample. Dark green-blue core with patchy Fe-Mn crust on sample. Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD0227S0 |
Serpentinite
|
Very small (~3x2x2 cm) uncut sample. Black Fe-Mn crust covering whole sample. Based on other Dredge 15-6 samples, this may be serpentinite as well. Original label: 20 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD022HS0 |
Serpentinite
|
Large (~6x6x6 cm) sample with flecks of green-golden chrysotile in green-blue fine-grained groundmass. Patchy Fe-Mn crust on sample. Billet pieces. Original label: 23 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 B |
| GRD022IS0 |
Serpentinite
|
Large (~9x8x7 cm) sample with flecks of green-golden mineral (chrysotile?) and green veins in green-blue fine-grained groundmass. Fe-Mn crust on sample. Original label: 23 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD022JS0 |
Serpentinite
|
Small uncut sample (~6x4x4 cm). Thin blue-green veins in green-blue fine-grained groundmass, patchy Fe-Mn crust on sample. Original label: 23 November, 1980. Challenger Deep. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD022KS0 |
Serpentinite
|
Medium-sized (~7x5x5 cm from the cut face) sample with dark green patches (sheared?) in fine-grained lighter green groundmass, patchy Fe-Mn crust on sample. Billet pieces. Original label: 23 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 B |
| GRD022LS0 |
Serpentinite
|
Medium-sized (~8x5.5x4 cm from the cut face) fine-grained light green with wispy thin veinlets and small patches of golden chrysotile (?) and magnetite crystals, Fe-Mn crust. Bumpy carapace. Billet pieces. Original label: 23 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 B |
| GRD022MS0 |
Serpentinite
|
Small (~7x4x1 cm) green sample. Large white wispy veins cross-cut, thin well-defined veinlets, and golden-brown chrysotile. Billet pieces. Original label: 23 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 B |
| GRD022NS0 |
Serpentinite
|
Large (~9x7x6 cm) uncut sample. Massive dark green groundmass with occasional patches/veins of dark to light blue mineralization. Patchy Fe-Mn crust on sample. Original label: 23 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 B |
| GRD022OS0 |
Serpentinite
|
Large (~11x8x6 cm) sample composed of fine-grained green-blue groundmass. Fe-Mn crust on sample. Original label: 23 November, 1980. Ultramafic (dark) rocks from the Mariana and Tonga Trench. |
Pacific Ocean |
0 |
Ritter 154, 37 C |
| GRD022PS0 |
Serpentinite
|
Cobble (~10x4x9 cm). Very dense. Green-blue fine-grained groundmass. Fe-Mn crust on sample. Original label: 23 November, 1980. Ultramafic (dark) rocks from the Mariana and Tonga Trench. |
Pacific Ocean |
0 |
Ritter 154, 37 C |
| GRD022QS0 |
Serpentinite
|
Large (~13x6x7 cm) sample with green fine-grained groundmass. Patchy Fe-Mn crust on sample. Original label: 23 November, 1980. |
Pacific Ocean |
0 |
Ritter 154, 37 C |
| GRD022RS0 |
Serpentinite
|
Small (~5x3x2 cm) sample. Whiteish glomerocrysts and Fe-oxides in green fine-grained groundmass. Patchy Fe-Mn crust on sample. Original label: 23 November, 1980. |
Pacific Ocean |
1 |
Ritter 154, 37 C |
