Called âone of the best and most consistent native trees for fall colorâ by tree expert Michael Dirr, the black tupelo is a terrific landscaping choice. Displaying various hues of yellow, orange, bright red and purpleâoften on the same branchâits foliage is a stand-out of the autumn season.
Types of Asbestos. The six minerals that make up the group called asbestos can be divided into two main types: amphibole and serpentine. Chrysotile asbestos is serpentine and it has fibers that are long and curly. This is the type of asbestos that has most often been used in construction and other industries.
These are just extracts, the article has more notes and references. Asbestos is a group of naturally-occurring silicate minerals that are made up of fine, fibrous crystals. Three of these are crocidolite (blue asbestos), amosite (brown or grey asbestos) and chrysotile (white asbestos).Asbestos becomes a hazard when microscopic fibre fragments become airborne and are inhaled.ut by one of the most unfortunate sleights of hand in scientific history, this demonisation was extended to include white or chrysotile asbestos, magnesium silicate, just because it shares the same name. a product that poses no risk to human health and is chemically identical to talcum powder.