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1		-XWiki.terraindex
	1	+XWiki.RoelofZwaan

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53	53	== Asbestos ==
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55		-Asbestos is a term used to refer to six naturally occurring silicate minerals. All are composed of long and thin fibrous crystals, each fiber being composed of many microscopic 'fibrils' that can be released into the atmosphere by abrasion and other processes. Asbestos is used to strengthen ceramic creations and in walls or roofs of houses. When one suspect the presence of asbestos in a decayed wall or roof one needs to select the 'Asbestos suspect material'-field. More on asbestos-sampling and other specification can be found on the following [[page>>doc:Eigenschappen.Samples .Asbestos.WebHome]].
	55	+Asbestos is a term used to refer to six naturally occurring silicate minerals. All are composed of long and thin fibrous crystals, each fiber being composed of many microscopic 'fibrils' that can be released into the atmosphere by abrasion and other processes. Asbestos is used to strengthen ceramic creations and in walls or roofs of houses. When one suspect the presence of asbestos in a decayed wall or roof one needs to select the 'Asbestos suspect material'-field. More on asbestos-sampling and other specification can be found on the following [[page>>doc:Characteristics .Samples .Asbestos.WebHome]].
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57	57	== Asphalt or bitumen ==
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107	107	A porous black solid, consisting of an amorphous form of carbon, obtained as a residue when wood, bone, or other organic matter is heated in the absence of air.
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109		-== [[Clay>>doc:Rock types.Sedimenten.Clay.WebHome]] ==
	109	+== [[Clay>>doc:Gesteentes.Sedimenten.Clay.WebHome]] ==
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111	111	A stiff, sticky fine-grained earth that can be moulded when wet, and is dried and baked to make bricks, pottery, and ceramics.
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204	204	Gravel is a loose aggregation of rock fragments. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. ISO 14688 grades gravels as fine, medium, and coarse with ranges 2 mm to 6.3 mm to 20 mm to 63 mm.
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206		-== [[Gypsum>>doc:Rock types.Salts.Gypsum.WebHome]] ==
	206	+== [[Gypsum>>doc:Gesteentes.Salts.Gypsum.WebHome]] ==
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208	208	Gypsum is the common name for CaSO,,4,,·2 H,,2,,O and is present at places where the sea water is partly or totally dried up. These dried up areas form loose layers in between the other rocks. This type of rock is soluble in water and is formed close to halite and anhydrite. Gypsum breaks into rhombus shaped pieces.
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