calamine

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calamine

1. a pink powder consisting of zinc oxide and ferric oxide, (iron(III) oxide), used medicinally in the form of soothing lotions or ointments
2. US another name for smithsonite, hemimorphite

Calamine

 

hemimorphite, a mineral from the group of zinc hydrosilicates; chemical composition, Zn4[Si2O7] [OH]2 ⋅ H2. Contains 67.5 percent ZnO.

Calamine crystallizes in the rhombic system. The crystals are usually small and found only in vacancies. Calamine is found most frequently in the form of crystalline crusts with a radiate-fibrous structure and in nodular and stalactite masses. The color is white, yellow, or greenish blue (from admixtures of iron and copper compounds). Hardness on the mineralogical scale, 4-5; density, 3, 400-3, 500 kg per cu m. The crystals show pyroelectric properties when heated. Calamine forms in the oxidation zone of lead and zinc deposits. Rich accumulations have been found in the USSR (eastern Transbaikal and central Kazakhstan) andabroad (Upper Silesia in Poland). It is used as an ore for obtain-ing zinc.

calamine

[′kal·ə‚mīn]
(metallurgy)
An alloy composed of zinc, lead, and tin.
(mineralogy)
hemimorphite smithsonite
(pharmacology)
A powder mixture of zinc oxide and ferric oxide, used in skin lotions and ointments.
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References in periodicals archive ?
The preservative phenol in the vaccine was not thought to be the cause of the reaction, because he had periodically used 1% phenolated calamine lotion to treat rashes that occurred on his extremities as a result of gardening.
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When I did, it looked like calamine lotion with an incredible smell of alcohol.
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These hands suggest future violence but also resonate with more positive images within the poem, such as her mother's voice calling her missing child, her mother's soothing of itchy hives with calamine lotion ("as though pink can heal me"), and perhaps most importantly her mother's final tender gesture: "My girl she says and folds me in, / gives me back to darkness.
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A new research report indicates, however, that immediate drug treatment can free many of these youngsters from traditional therapies -- oatmeal baths and those messy applications of calamine lotion -- up to three days earlier than usual.
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After the bath, apply calamine lotion to help reduce itching.
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Apply calamine lotion or hydrocortisone cream which will help soothe the itching.
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HEAT blisters out of their uncovered skin, and in the evenings the scent of calamine lotion attracts the midges.
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