Scheelate, or Tungstate of Iron

Having figured this substance in tab. 165 and 166, with some variety of crystals, we are glad to have the opportunity of giving an additional perfection to the work by means of the present figure, being favoured by the long experienced and indefatigable collector the Count dc Bournon, with the use of this unique Cornish specimen, containing nearly primitive crystals, which are rhomboidal prisms of about 115°, and elongated in the direction of one of their lateral rectangular planes, and some placed in pairs, as it were mackled. Being black, they are prettily relieved by the purplish cubic Fluor with narrow bevilled edges. The right hand figure shows the prism magnified; and the two left hand figures show them in pairs.