Purple Apatite Specimens with Display Card

Purple Apatite Specimens with Display Card (shop SKU HTPA4) is offered as a mineral specimen online and at the bookshop on West 14th Street.

Apatite is a phosphate mineral; purple specimens are less common than the familiar blue-green ones. It is softer than quartz and is best kept as a specimen rather than rough daily jewelry.

It is sold with a display card, which is helpful if you want a small labeled specimen on a shelf. Natural stones vary in color, clarity, and shape, so the piece you receive will have its own character even when the weight or grade is listed. The listing may use a reference or stock image; each natural piece varies.

• SKU: HTPA4

Find it at Namaste Bookshop, 2 West 14th Street, a short walk from Union Square in Manhattan, or order it online.