Lindane lotion should be used with caution for infants, children, the elderly, and individuals with other skin conditions (e.g, atopic dermatitis, psoriasis) and in those who weigh < 110 lbs (50 kg) as they may be at risk of serious neurotoxicity.
Although other metallic minerals may mimic magnetiteâs color, luster, hardness and specific gravity, magnetite is the only common mineral that is magnetic. So a magnet is usually all that is needed to identify its presence. Magnetite crystals usually only occur when magma cools slowly enough for crystals to form and settle out of the magma.
pyrite A common iron-bearing mineral that cannot permanently hold a magnetic field but is weakly attracted to magnets. As shown in its chemical formula, each molecule of pyrite (FeS 2) is made of one iron (Fe) atom and two sulfur (S) atoms. sedimentary rock A type of rock that forms from accumulated material that has been eroded from other rocks.