...to form 'a very pretty graphic granite. Here and there larger portions of felspar are saussurised, and are replaced in the section by spots which appear...the saussuritic parts the almost colourless zoisite is at times accompanied by slightly larger grains of greenish-yellow epidote. In these aggregates the...

...as to form a very pretty graphic granite. Here and there larger portions of felspar are saussurised, and are replaced in the section by spots which appear...directions their steel-blue colour of polarisation. In the saussuritii parts the almost colourless zoisite is at times accompanied by slightly larger grains of...

...are replaced in the section by spots which appear of a dull white colour in diagonal light, t'nder the microscope these are seen to consist of an aggregate...straight extinction, and in other directions their steel-bine colour of polarisation. In the saussuritic parts the almost colourless zoisite is at times...