Posted by: macadmin on 05.14.2020 | Filed under:


Specimen # 101971
Mineral: Zircon
Location: Zircon, Astor Valley, Gilgit-Baltistan, Pakistan
Size: 6.2 x 5.0 x 5.0 cm


Detailed Description

This piece hosts a superb deep wine-red zircon crystal, set perfecly in a contrasting matrix (predominantly feldspar). The crystal is sharp, translucent, and lustrous. It is in excellent condition with no damage and minimal signs of interaction with the surrounding minerals when it formed. (The secondary small attached crystal in front is not as well developed, having interacted with the feldspar.) Sits perfectly for display as photographed. The zircon fluoresces yellow in short-wave ultraviolet light, as shown in the last photo.

This is a great zircon – a dark red glassy pyramid in the rock.

Browse more Zircons from Astor Valley (click here)

About these Zircon Specimens

These zircons are from a relatively large new find of zircons from Astor Valley, in Pakistan. A locality that has sporadically produced moderate amounts of material in recent years, this recent find produced a large number of pieces. However, fine zircons are proportionally very few. There are two key reasons for this. First, the zircons are enclosed within solid rock with other hard constituent minerals, such that a good number of zircons were broken when they were collected. However, the second reason is the much more prevalent issue based on the material I’ve seen: the zircon crystals seem to have formed more or less contemporaneously with most of the other minerals in the deposit – feldspar, biotite mica, and pyroxene – and as a result, most of the zircon crystals are not fully developed. Instead, most zircon crystal growth was interrupted by the growth of these other minerals, and therefore most zircons are simply incomplete, or malformed. And yet, among well over 1000 pieces I went through from this find, there were a few excellent specimens.

Additional information

Dimensions 50 × 62 × 50 cm