all natural

Some plagioclase grains are 50 μm in size

It is amazingly light considering its mass of 39x39x9 mm

At one time they where even quite common

Color: Navy Blue with Intricate White Patterns

Albite on Orthoclase | Perky Box Thumbnail Specimen | Ossipee, NH, USA Bornite all naturalThis is a well formed albite that shows very well with its white cubic shiny crystal and good luster and translucence on top of a block of orthoclase crystal. This old collection specimen comes mounted in a Perky display box. Product Name: Natural Albite on Orthoclase Crystal Specimen Size: Thumbnail Sized Dimensions: 36x34x34 mm 1. 4x1. 3x1. 3 inches Box Weight: 11. 35 Grams 0. 4 Ounces (including Box) Origin: Mined in Ossipee, Carroll County, New