quality:corruption, structural:summarization, information:filtering, stylistic:tone
Other materials

Other regulated asbestos minerals, such as tremolite asbestos, CAS No. 77536-68-6, Ca Mg Si O (OH); actinolite asbestos, CAS No. 77536-66-4, Ca (Mg,Fe) (Si O)(OH); and anthophyllite asbestos, CAS No. 77536-67-5, (Mg,Fe) Si O (OH); are less commonly used industrially but can still be found in a variety of construction materials and insulation materials and have been used in a few consumer products.

Other natural asbestiform minerals, such as richterite, Na(CaNa)(Mg,Fe) (Si O)(OH), and winchite, (CaNa)Mg (Al,Fe)(Si O)(OH), though not regulated, are said by some to be no less harmful than tremolite, amosite, or crocidolite. They are termed "asbestiform" rather than asbestos. Although the U.S. Occupational Safety and Health Administration (OSHA) has not included them in the asbestos standard, NIOSH and the American Thoracic Society have recommended them for inclusion as regulated materials because they may also be hazardous to health.

" Mountain leather " is an old-fashioned term for flexible, sheet-like natural formations of asbestiform minerals which resemble leather. Asbestos-containing minerals known to form mountain leather include: actinolite, sepiolite, and tremolite.