It is soft sulphate mineral. That is offered in plaster formation. The is supplied in blackboard chalk formation.It is offered as a fertilizer.It Talc have the right to not scrape gypsum because it is harder than talc.
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It has actually no soapy feel.
Talc is hydrous magnesium silicate mineral . It is usually green ,gray, white , brown or colourless.It is a translucent mineral . It has actually pearly luster.
It is soften known mineral. The chemical formula of talc is

Hence, the choice B is true.
centregalilee.com: B. Talc has soapy feel.
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