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как употребляется слово
частота употребления
используется оно чаще в устной или письменной речи
варианты перевода слова
примеры употребления (несколько фраз с переводом)
этимология

Что (кто) такое French chalk - определение

HYDROUS MAGNESIUM PHYLLOSILICATE MINERAL

Talcum powder; French chalk; Magnesium Silicate; Talcum; E553b; Sterile talc powder; Magnesium silicate; Talc powder; ATC code A02AA05; ATCvet code QA02AA05; Talc (mineral); Talcum Powder; Mg3Si4O10(OH)2

French chalk

¦ noun a kind of steatite used for marking cloth and removing grease and as a dry lubricant.

O. Roy Chalk

AMERICAN BUSINESSMAN

Roy chalk

Oscar Roy Chalk (June 7, 1907 – December 1, 1995) was a New York entrepreneur who owned real estate, airlines, bus companies, newspapers and a rail line that hauled bananas in Central America. His diverse holdings included DC Transit, Trans Caribbean Airways, the Houdon bust of Thomas Jefferson now at Monticello, the Chalk Emerald, and the New York Spanish-language newspapers El Diario de Nueva York and La Prensa, merging them into El Diario La Prensa.

https://en.wikipedia.org/wiki/O._Roy_Chalk

chalk

SOFT, WHITE, POROUS SEDIMENTARY ROCK

Chalk pit; Tailor's chalk; Black chalk; Chalkstone; Pavement chalk; Chalk rock; Chalk (rock); Chalk stick

(chalks, chalking, chalked)

1.

Chalk is a type of soft white rock. You can use small pieces of it for writing or drawing with.

...the highest chalk cliffs in Britain...

Her skin was chalk white and dry-looking.

N-UNCOUNT: oft N n

2.

Chalk is small sticks of chalk, or a substance similar to chalk, used for writing or drawing with.

...somebody writing with a piece of chalk.

...drawing a small picture with coloured chalks.

N-UNCOUNT: also N in pl

3.

If you chalk something, you draw or write it using a piece of chalk.

He chalked the message on the blackboard...

There was a blackboard with seven names chalked on it.

VERB: V n, V-ed

4.

If you say that two people or things are like chalk and cheese, you are emphasizing that they are completely different from each other. (BRIT)

The two places, he insists, are as different as chalk and cheese...

We are very aware of our differences, we accept that we are chalk and cheese.

PHRASE [emphasis]

Википедия

Talc

Talc, or talcum, is a clay mineral, composed of hydrated magnesium silicate with the chemical formula Mg₃Si₄O₁₀(OH)₂. Talc in powdered form, often combined with corn starch, is used as baby powder. This mineral is used as a thickening agent and lubricant. It is an ingredient in ceramics, paints, and roofing material. It is a main ingredient in many cosmetics. It occurs as foliated to fibrous masses, and in an exceptionally rare crystal form. It has a perfect basal cleavage and an uneven flat fracture, and it is foliated with a two-dimensional platy form.

The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 1 as the hardness of talc, the softest mineral. When scraped on a streak plate, talc produces a white streak; though this indicator is of little importance, because most silicate minerals produce a white streak. Talc is translucent to opaque, with colors ranging from whitish grey to green with a vitreous and pearly luster. Talc is not soluble in water, and is slightly soluble in dilute mineral acids.

Soapstone is a metamorphic rock composed predominantly of talc.

https://en.wikipedia.org/wiki/Talc