Brush-like Sulphate of Strontian

Brush Iron Ore is spoken of in many authors, but I do not know of any mention having been made of Sulphate of Strontian in that form. The specimen here figured, however, is so perfectly described by that appellation, that very few will not assent to it. It came from the same place as the last, and is formed altogether of smaller spiculæ. The bundled and, sometimes, twisted elongated arrangement admits of not only a picturesque effect, but exhibits the pleasing graceful line of beauty so universally attractive in Nature, that, ever since our Hogarth observed it, we may be said to have been indulged with a new sense for abstract beauty.