These lying in parallel position in great numbers in the labradorite give the colors.
It would be just as sensible to say that labradorite, which is rare, should be as costly as diamonds.
Like labradorite it usually exhibits on the surface of easiest cleavage parallel striations due to twinning structure.
The bed of the country here is Archan rock, and many beautiful specimens of labradorite dot the shores.
These intermediate members are the lime-soda felspars known as oligoclase, andesine, labradorite and bytownite.
The second species of Feldspar which may be mentioned as of use as an ornamental stone is labradorite.
The felspar ranges from bytownite to oligoclase, being usually a variety of labradorite; orthoclase is scarce.
Like labradorite the sheen is visible only when the stone is held at a certain angle.
labradorite, the reader may know, is a crystallized feldspar, with traces of other minerals.
Another feldspar sometimes seen as a semi-precious stone is labradorite.