Why gem and minerals are magnetic: Some gems and minerals are magnetic due to the metals contained in them. Gems and minerals can be attracted or repelled by a magnetic field. The level of observable attraction can be noted as minimal, moderate, and maximum. Gems and minerals can be divided and recognize by observing the range of the responsiveness they demonstrate when the magnetic field magnet is applied to them.
Step 1: Items Used
· Household scissors
· Drill press
· Drill bit 25/64 (3/8 could also be used)
· Circular surface level (levels in all directions at once)
· Miter box or good eyes
· File – made for metal fine tooth
· Deburring tool
· Finger nail polish – I used yellow to match painted aluminum
· Large 1-inch metal paper binder clips
· Threaded furniture glides (come in sets of 4) size = 1 – 1/16 threaded glides only need three
· 6-foot aluminum level – cut to 8 inches
· Float chamber clear water tight plastic 1 ½ inches wide - 4 inches long - 3/8 inches deep
· Tweezers plastic (metal is shown, plastic would work better)
· Two water tight containers – large enough to fill float chamber – I used plastic film canisters 1 ¼ inches in diameter by 2 inches tall. One is just for storage of borax the other to contain the mixture of water and borax. The volume used was 1 tsp (teaspoon) or 15 ml.
· Small spoon – used to scoop the borax
· Plastic wand – used to push foam
· Dense cell plastic foam – enough to make a few 1 x 1 x 3/8 thick inch squares, this foam must be capable of floating and not retaining water.
· Eyedropper – if float chamber is too full of mixture used to draw liquid out.
· Rare earth magnet – 11/16 diameter 1/8 thick coin size
· Helping hands
· 3 by 5 index card plastic box