Assertion: chrysotile's use | /r/CapableOf | examine sample
Facets:
value: from two sichuan asbestos mines
type: LOCATION
Source sentences:
text: Using transmission electron microscopy, Dr. Kohyama, who is an asbestos mineralogy expert, examined samples from two Sichuan asbestos mines whose products were mainly used in the factory and found that the tremolite contamination was less than 0.001% .