- Modality
- NIR
- Category
- mineral
- Material Type
- Nesosilicate
- Sample ID
- GDS70.a, GDS70.b, GDS70.c, GDS70.d, GDS70.e
- Collection Locality
- South Point, Hawaii, Hawaii
- Spectral Purity
- 1b2b3b4b # GDS70.a # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2b3b4b # GDS70.b # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2b3b4b # GDS70.c # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2c3b4b # GDS70.d # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2c3b4b # GDS70.e # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns
- Composition / XRD
- EPMA # XRF, EPMA, ICP(Trace), WChem
- Sample Description
- This sample is commonly referred to as the "green sand beach" olivine. The sample was sieved into grain size fractions. All samples were examined using a petrographic microscope and hand-picked prior to wet-sieving. King, T.V.V. and W.I. Ridley, 1987, Relation of the Spectroscopic Reflectance of Olivine to Mineral Chemistry and Some Remote Sensing Implications. J. Geophys. Res., 11,457-11,469. Grain size fractions are indicated by the extension after the sample number: .e = less than 30µm .d = less than 60µm .c = 60-104µm with a median grain size of 70µm .b = 104-150µm with a median grain size of 115µm .a = 150-250µm with a median grain size of 165µm IMAGE_OF_SAMPLE: NO PHOTO
- XRD Analysis
- Forsterite plus possible trace corundum. (Steve Sutley)
- X Units
- cm⁻¹
- Y Units
- Absorbance
- Data Points
- 2,126