| DTS-1 | Dunite | Page Last Updated: |
| Saturday, December 04, 1999 |
| Page 1 of 3 |
| ________________________________________________________________________________ |
| Producer: | United States Geological Survey |
| Material Source: | Twin Sisters area, Hamilton, Washington |
| Date Released: | 1970 |
| Production Ref: | 69FLA - 01 |
| _________________________________________________________________________________ |
| Constituent | Concentration | Uncertainty | Units | N | Data Quality | Data Source |
| _________________________________________________________________________________ |
| Major Oxides |
| Al2O3 | 0.189 | 0.057 | % | 75 | Provisional value | 91GLA - 01 |
| CaO | 0.17 | 0.03 | % | 74 | Provisional value | 91GLA - 01 |
| CO2 | 0.08 | 0.01 | % | 19 | Not provided by compiler | 91GLA - 01 |
| Fe2O3 | 1.03 | 0.36 | % | 32 | Provisional value | 91GLA - 01 |
| Fe2O3-T | 8.68 | 0.24 | % | 100 | Recommended value | 91GLA - 01 |
| FeO | 6.97 | 0.26 | % | 46 | Recommended value | 91GLA - 01 |
| H2O+ | 0.44 | 0.1 | % | 28 | Provisional value | 91GLA - 01 |
| H2O- | 0.06 | 0.03 | % | 26 | Provisional value | 91GLA - 01 |
| H2O-T | 0.48 | 0.09 | % | 22 | Provisional value | 91GLA - 01 |
| K2O | 0.001 | 0.0001 | % | 28 | Not provided by compiler | 91GLA - 01 |
| MgO | 49.59 | 0.33 | % | 77 | Certified value equivalent | 91GLA - 01 |
| MnO | 0.12 | 0.01 | % | 108 | Recommended value | 91GLA - 01 |
| Na2O | 0.015 | 0.011 | % | 55 | Provisional value | 91GLA - 01 |
| P2O5 | 0.002 | 0.0016 | % | 32 | Provisional value | 87GLA - 01 |
| SiO2 | 40.41 | 0.47 | % | 88 | Recommended value | 91GLA - 01 |
| Oxide Sum | 99.95 | 0.74 | % | Not provided by compiler | 91GLA - 01 |
| Minor Oxides |
| B2O3 | 0.000161 | % | 3 | Provisional value | 91GLA - 01 |
| BaO | 1.89805E-04 | 1.3398E-04 | % | 28 | Provisional value | 91GLA - 01 |
| Cr2O3 | 0.58 | 0.04 | % | 77 | Recommended value | 91GLA - 01 |
| NiO | 0.3 | 0.02 | % | 84 | Recommended value | 91GLA - 01 |
| SrO | 3.784352E-05 | 7.09566E-06 | % | 16 | Recommended value | 91GLA - 01 |
| ZnO | 5.725896E-03 | 1.120284E-03 | % | 61 | Recommended value | 91GLA - 01 |
| ZrO2 | 0.00054 | 0.00027 | % | 8 | Provisional value | 91GLA - 01 |