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Sample Type is Metamorphic › Granoblastic › Serpentinite

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD027IS0 Serpentinite Fine-grained blueish crystalline sample with some green patches, and Fe-staining. Sample is cut and has high specific gravity. Original label: 21 October, 1967. Section cut July, 1971. Pacific Ocean 0 Ritter 154, 37 G
GRD027MS0 Serpentinite Three samples: two of which are green, fine-grained, and have occasional white feldspar crystals. The third sample is fine-grained, reddish with some patchy green serpentine. Pacific Ocean 0 Ritter 154, 37 G
GRD027OS0 Serpentinite Two cut samples. The smaller sample has white carbonate blebs in a dark green, fine-grained matrix with some thin white carbonate veins/fractures. The larger sample has some red staining on the surface and along a vein. Original label: 21 October, 1967. Section cut July 1971. Larger samples original description: Variolite basalt diabase, CO2, and zeolites. Near shore facies. Pacific Ocean 1 Ritter 154, 37 G
GRD027PS0 Serpentinite Two cut samples. White blebs in a dark green, fine-grained matrix. Some thin veins/fractures. The dark grey patches are magnetite. High specific gravity. Original label: 21 October, 1967, Section cut July 1971. Pacific Ocean 1 Ritter 154, 37 G
GRD027QS0 Serpentinite Two cut samples. Grey, fractured blebs in a dark grey, fine-grained matrix. Some thin veins/fractures. White and blue serpentine on the surface. Original label: 21 October, 1967, Section cut July 1971, Sheared serpentinite/harzbergite. Pacific Ocean 1 Ritter 154, 37 G
GRD027TS0 Serpentinite Two cut samples (largest measures ~4.5x4x3 cm). Fine-grained dark grey/green samples with occasional dark green spots. Original label: 21 October, 1967, Section cut July 1971 Pacific Ocean 1 Ritter 154, 37 G
GRD027VS0 Serpentinite Billet and thin section only - dark blue/red fine-grained. Pacific Ocean 1 Ritter 154, 37 G
GRD0281S0 Serpentinite Two small (~4x3x2 cm from cut face) and five very small (largest is ~2x1x1 cm) blue-green crystalline samples with a few dark spots (pyroxene?). All samples are cut. Original label: 21 October, 1967. Section cut: Nov 1967. Pacific Ocean 0 Ritter 154, 37 G
GRD0288S0 Serpentinite Five cut samples (largest measures ~5.5x5.5x1.5 cm from the cut surface). Green crystalline to fine-grained. Dark blue and light green serpentine on the surface. One sample looks more like a peridotite than a serpentinite- (misplaced?). All samples have occasional magnetite crystals. Billet and billet pieces. Pacific Ocean 0 Ritter 154, 37 H
GRD028AS0 Serpentinite One small cut sample (~2.5x3x2.5 cm from the cut surface). Green crystalline with light green serpentine on the side of sample. Billet pieces. Pacific Ocean 0 Ritter 154, 37 H
GRD028BS0 Serpentinite Two very large (~15x8x7 cm) with multiple smaller pieces and dust. Sample is friable. Some crystalline patches of olivine and some grey fine-grained patches of serpentine on the exterior of the sample. White crystal growths (puffs) on surface. Pacific Ocean 0 Ritter 154, 37 H
GRD028FS0 Serpentinite Straight white serpentine veins and blue crystals (pyroxene?) in a green-blue glassy matrix. Original label: 8 August, 1968. Indian Ocean 2 Ritter 154, 34 A
GRD028HS0 Serpentinite Four uncut samples. Each are dark green pseudo-crystalline with light green veins and black spots. Fe-Mn crust. Largest sample is ~9x4x4 cm. Original label: 8 August, 1968. Indian Ocean 0 Ritter 154, 34 A
GRD028IS0 Serpentinite Two cut samples. The larger sample measures ~9x6x7 cm and appears to be layered (brown-green to teal-green to green-black crystalline) with small white veins. The smaller sample measures 7x4x2 cm is similarly layered but has more abundant veins. Billet piece. Original label: 8 August, 1968. Indian Ocean 0 Ritter 154, 34 A
GRD028JS0 Serpentinite Two cut samples and two uncut samples. Both sets look very different from one another. The uncut samples are green with fibrous green bands/veins (chrysotile?). The cut samples are pink-peach with green veins and blebs that appear to be fibrous/crystalline. Original label: 8 August, 1968. Indian Ocean 2 Ritter 154, 34 A
GRD028KS0 Serpentinite A small (~4x3x2.5 cm) uncut sample. Fe-Mn crust with a patch of green fibrous crystals. Original label: 8 August, 1968. Indian Ocean 0 Ritter 154, 34 A
GRD028LS0 Serpentinite A small (~4x3x2.5 cm) uncut sample with Fe-Mn crust. Original label: 8 August, 1968. Indian Ocean 0 Ritter 154, 34 A
GRD028YS0 Serpentinite Small (~4x5x5 cm) from the cut face) sample. Green, fine-grained groundmass with many thin, blue veins. Books of talc/muscovite visible on the surface and on the cut face of the sample. Orange Fe-staining on the surface. Indian Ocean 0 Ritter 154, 34 B
GRD028ZS0 Serpentinite Small (~7x4.5x3 cm from the cut face) sample. Blue-green, fine-grained groundmass, which becomes more fractured in the interior with many thin, blue veins. Occasional magnetite crystals throughout and serpentine crystals visible on the surface sample. Indian Ocean 1 Ritter 154, 34 B
GRD0290S0 Serpentinite Very small sample (~3.5x3.5x0.5 cm). Many thin blue veins with peach, very fine-grained matrix. Original label: 1968. Indian Ocean 1 Ritter 154, 34 B
GRD0291S0 Serpentinite Very small sample (~3.5x3.5x0.5 cm). Many thin blue veins in very fine-grained peach and blue matrix. Light green serpentine crystals on exterior. Billet. Original label: 1968. Indian Ocean 1 Ritter 154, 34 B
GRD0292S0 Serpentinite Very small sample (~5x2x3 cm). Many small (~2 mm) green crystals in very fine-grained peach matrix. Light green serpentine crystals on exterior. Original label: 1968. Indian Ocean 1 Ritter 154, 34 B
GRD0293S0 Serpentinite Light green-green matrix with cross-cutting blue veins. Billet and two billet pieces. Original label: 1968. Indian Ocean 1 Ritter 154, 34 B
GRD0294S0 Serpentinite Thin-section only. Original label: Dark Red - Spinel? pecotite. Indian Ocean 1 Ritter 154, 34 B
GRD0295S0 Serpentinite Very small piece and billet. Abundant blue veins and small patches of chrysotile and pyroxene in fine-grained, green matrix. Indian Ocean 1 Ritter 154, 34 B
GRD0296S0 Serpentinite Medium-sized (~9x7x4 cm) sample composed of abundant blue veins, large clasts or clusters of grey-blue (pyroxene-olivine) crystals in a peach matrix. The sample is brittle. Billet. Indian Ocean 1 Ritter 154, 34 B
GRD0297S0 Serpentinite A small sample composed of large (~1 cm diameter) green-gold books of phyllosilicate surrounding magnetite and pyroxene crystals, abundant thin blue veins. The sample is brittle. Indian Ocean 1 Ritter 154, 34 B
GRD0298S0 Serpentinite Large, oblong sample (~14x7x8 cm). Peach-colored matrix that becomes blue in the center. The sample has abundant blue and green serpentine veins, occasional small (~1 mm in diameter) magnetite crystals, and a patchy Fe-Mn crust. Billet and billet pieces. Indian Ocean 1 Ritter 154, 34 B
GRD0299S0 Serpentinite Two cut samples (~9x4x2.5 cm and ~4.5x5x4 cm). Both samples are mottled. Thin blue veins and thicker light green serpentinite veins cross-cutting a fine green-peach groundmass. Occasional very small magnetite crystals. Billet piece. Indian Ocean 1 Ritter 154, 34 B
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