Magnetite Extraction
Desert Peak Observatory Wash
 1. DPO Wash with some magnetite removed using a magnet. |
 3. Magnetite attracted to this magnet. |
4. Video of extraction process. |
 5. Magnet leaves array on magnetite not picked up. |
 6. Pattern on magnet itself. |
 7. Wash prior to magnetite extraction. |
 8. Same wash after extraction (right 3/4 of photo). |
 7. Extraction of Magnetite completed in the south few hundred feet of wash. |
 8. 32 Lb. weight of bucket and extracted magnetite. |
 9. Magnetite & sand to undergo concentration process. |
 10. Above magnetite & sand spread on cardboard. |
 11. Pattern left by magnet during concentration. |
 12. 2 Lb. sand remaining after concentration from 30 Lbs. |
 13. 30 Lb weight of concentrated magnetite & bucket. |
 14. 100 mL portions of magnetite being bagged. |
 15. Packaging process. |
 16. First ten bags prepared. |
 17. Weight of ten bags. |
 18. Bucket weight when empty = 2 Lbs. |
Each 100 mL bag weighs 0.8 lbs. 0.8 Lb/Bag X 100 Bags = 80 Lbs. 0.8 Lb/Bag X 235 Bags = 188 Lbs = 200 Lbs (1 Sig Dig). If 175 mL Bags are still desired, then 0.8 Lb/100mL X 175 mL = 1.4 Lbs/New Bag. 1.4 Lbs/New Bag X 100 New Bags = 140 Lbs. 1.4 Lbs/New Bag X 235 Bags = 329 Lbs = 300 Lbs (1 Sig Dig). See New Math |
32 Lb Magnetite, Sand & Bucket Initially Extracted 30 Lb Magnetite & Sand Initially Removed |
30 Lb Concentrated Magnetite, Remaining Sand & Bucket 28 Lb Concentrated Magnetite & Remaining Sand |
32 Lb Magnetite, Sand & Bucket Initially Extracted 02 Lb Sand Removed During Concentration Process |
2 Lb Sand Removed/30 Lb Magnetite & Initial Sand X 100 = 7 % Weight Removed from Initial Magnetite & Sand |
 19. Packaging size 60 mL = about 1/4 Cup |
 20. Mido came to help. |
 21. She got into the bucket with magnetite. |
22. Video of Mido in magnetite bucket. |
 23. Fifty-Five 60 mL packages. |
 24. 22 Lbs = Weight of 55 bags of magnetite. |
60 mL X 1L/1000 mL X 1.057 Qt/L X 4 Cups/Qt = 0.254 Cups Therefore a rounded 1/4 Cup kitchen tool was used. |
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Some New Math Calculations Fifty-Five 60 mL bag weigh 22 Lbs. 22 Lbs/55Bags = 0.4 Lb/Bag 0.4 Lb/Bag X 100 Bags = 40 Lbs. 0.4 Lb/Bag X 235 Bags = 94 Lbs = 100 Lbs (1 Sig Dig). |
Reasons for new values? 1. "Caffeine Beaker"used was dispensing more magnetite than markings indicated. This was learned as one rounded 1/4 cup which is about 60 mL did not nearly reach the mark on NSTA device. 2. Rounded kitchen 1/4 cup came closer to the proper (smaller) amount. |
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March 16, 2010. This sample was concentrated four additional times after being extracted from the wash. The Right photo shows the decreasing amount of sand removed with each magnetic concentration of the Fe3O4. This particular sample is our Private Reserve Magnetite. The rest of the magnetite was twice concentrated after the original extraction from the wash. This removed an equivalent amount of sand such as seen between the second & third pile in picture #26.
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25. Appearance after extraction from wash. 
26. Dark material in bucket is our Private Reserve.