Sample Type is Igneous › Plutonic › Mafic Intrusive › Gabbro
101 records | Download| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD00IXS0 | Gabbro | moderately altered gabbro; Wards mineral sample 174 (anorthite) | California | 0 | Ritter 154, 16 D |
| GRD00JJS0 | Gabbro | biotite-bearing gabbro | California | 0 | Ritter 154, 16 R |
| GRD01YYS0 | Gabbro | Small sample with billet. Plagioclase, olivine, and oxides visible in hand sample. Original label: 8 November, 1980. | Pacific Ocean | 1 | Ritter 154, 37 A |
| GRD0200S0 | Gabbro | Hypidiomorphic granular, medium-grained, Pyroxene-plagioclase-quartz. Original description: Gabbroic or dioritic plutonic rock, continental type rock, Age Precambrian?, New Zealand Suite. | New Zealand | 0 | Ritter 154, 16 D |
| GRD0200S1 | Gabbro | Hypidiomorphic granular, medium-grained, Pyroxene-plagioclase-quartz. Original description: Gabbroic or dioritic plutonic rock, continental type rock, Age Precambrian?, New Zealand Suite. | New Zealand | 0 | Ritter 154, 16 D |
| GRD0229S0 | Gabbro | Black crystalline sample. ~7x3 cm on the cut face. Billet pieces. Largest crystals are amphibole, interstital white crystals. Original label: 23 November, 1980. | Pacific Ocean | 1 | Ritter 154, 37 B |
| GRD0244S0 | Gabbro | Two small cut samples measuring ~6x3.5x3 cm and ~5x3x2 from the cut faces. Black crystalline interior. Billet pieces in a bag. Original label: 28 November, 1980. | Pacific Ocean | 1 | Ritter 154, 37 D |
| GRD0245S0 | Gabbro | Small (~5 cm in diameter) uncut rounded sample. Chip in sample reveals dark green crystalline interior. Fe-Mn crust on sample. Original label: 28 November, 1980. | Pacific Ocean | 0 | Ritter 154, 37 D |
| GRD0246S0 | Gabbro | Two small cut samples measuring ~5x4x5 and ~4x4.5x2.5 cm from the cut faces. Dark green crystalline interior. Fe-Mn crust on sample. Original label: 28 November, 1980. | Pacific Ocean | 1 | Ritter 154, 37 D |
| GRD024CS0 | Gabbro | Two medium-sized cut sample measuring ~6x6x3 cm and ~4x5x2 cm from the cut faces. Grey crystalline interior. White rind. Billet pieces in a bag. Original label: 28 November, 1980. | Pacific Ocean | 1 | Ritter 154, 37 D |
| GRD024DS0 | Gabbro | Small (~5 cm in diameter) uncut sample. Chip in sample reveals black crystalline interior, some Fe-stained blebs. White rind. Original label: 28 November, 1980. | Pacific Ocean | 0 | Ritter 154, 37 D |
| GRD024HS0 | Gabbro | Two small cut samples measuring ~3x3x2.5 cm and ~2x2x1 cm from the cut faces. Interior composed of dark green crystals in finer-grained grey to white matrix. White crystalline rind. Original label: 28 November, 1980. | Pacific Ocean | 1 | Ritter 154, 37 D |
| GRD028GS0 | Gabbro | Very large (~10.5x8x12 cm from the larger cut surface) sample with green-black crystalline interior and a Fe-Mn crust. Billet. Original label: 8 August, 1968. SiO2 ~50.0, TiO2 ~0.30, Na2O ~2.95, K2O ~0.07, P2O5 <0.01. Olivine-Augite. | Indian Ocean | 0 | Ritter 154, 34 A |
| GRD02E8S0 | Gabbro | Medium-grained gabbro. Carbonate veins. Billet. Probably from Ligurian ophiolite. | Italy | 1 | Ritter 154, 16 D |
| GRD02J5S0 | Gabbro | gabbro (Q gabbro: plag, CPX, amphibole and intercumulus micrographic intergrowth and Q) | Canada | 0 | Ritter 154, 16 D |
| GRD02NHS0 | Gabbro | Fine-grained green gabbro. Carbonate crust and veins in sample. | California | 1 | Camp Elliott |
| GRD02NJS0 | Gabbro | Fine-grained green gabbro. Carbonate spots and veins in sample. | California | 0 | Camp Elliott |
| GRD02NKS0 | Gabbro | Coarse-grained green gabbro. Pyroxene. Nice hand sample. | California | 1 | Ritter 154, 16 C |
| GRD02NMS0 | Gabbro | Sample of coarse-grained green gabbro. | California | 0 | Camp Elliott |
| GRD02NOS0 | Gabbro | Small sample of coarse-grained gabbro. Fair amount of metallic oxides. | California | 0 | Camp Elliott |
| GRD02NPS0 | Gabbro | Two small samples of coarse-grained gabbro. One sample could be made into a billet. | California | 0 | Camp Elliott |
| GRD02NRS0 | Gabbro | Small sample of medium grained gabbro. 50% orthoclase - 50% amphibole. | California | 0 | Camp Elliott |
| GRD02NSS0 | Gabbro | Small sample of coarse grained gabbro. 50% orthoclase - 50% amphibole. | California | 0 | Ritter 154, 16 D |
| GRD02NWS0 | Gabbro | Plagioclase-rich gabbro with Fe-stained crust on sample. Original label: Gabbro. Plagioclase (An55), Hypersthene (many with pyroxene overgrowths), opaques form a lattice-like pattern. A few apatite crystals. Numerous complex twins amo(?)-orthopyroxene-clinopyroxene-olivine-hornblende-spinel. | California | 4 | Ritter 154, 3 E |
| GRD02OKS0 | Gabbro | Large sample of hornblende gabbro. Original label: From blasted outcrop in road. | California | 2 | Ritter 154, 16 D |
| GRD02OLS0 | Gabbro | Two samples of anorthositic gabbro. Exsolution of pyroxenes in thin section. | California | 3 | Ritter 154, 16 F |
| GRD02PCS0 | Gabbro | Coarse-grained gabbro. Billets. Original label: Ophiolite. Typical gabbro. | California | 2 | Ritter 154, 29 F |
| GRD02PDS0 | Gabbro | Dark green fine-grained diorite (?) Billets. Original label: Ophiolite. Quartz diorite? Dike cutting Calif 1103. | California | 2 | Ritter 154, 29 F |
| GRD02R3S0 | Gabbro | Hb gabbro; part of meter scale dike with very large amphibole crystals perpendicular to the margin. 3-6 cm Hb crystals with altered plagioclase. Slightly fractured. | California | 0 | Ritter 154, 16 C |
| GRD02R4S0 | Gabbro | California | 0 | Ritter 154, 20 B |