it is found in Ceylon , Arabia , and Egypt .
Topaz , or ancient chrysolite , is an octangular prism of an orange - yellow colour ; it is composed of alumina , silica , hydrofluoric acid , and iron .
Topaz is found in Ceylon , Arabia , and Egypt .
Topaz , or ancient chrysolite , is an octangular prism of an orange - yellow colour ; it is composed of alumina , silica , hydrofluoric acid , and iron .