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Zircon

Zircon

Specimen # 101997
Mineral: Zircon
Location: Astor Valley, Gilgit-Baltistan, Pakistan
Size: 3.0 x 3.0 x 2.5 cm
Price: $50.00 CAD

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Detailed Description

This specimen features a sharp zircon crystal with colour that grades from deep red to almost colourless at the one termination. The crystal is lustrous, with minimal growth interference from the surrounding minerals. In excellent condition,  no damage. Fluoresces yellow under short-wave ultraviolet light, as shown in the last photo. Stands for display as photographed. This is a very nice zircon crystal.

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.

Detailed Description

This specimen features a sharp zircon crystal with colour that grades from deep red to almost colourless at the one termination. The crystal is lustrous, with minimal growth interference from the surrounding minerals. In excellent condition,  no damage. Fluoresces yellow under short-wave ultraviolet light, as shown in the last photo. Stands for display as photographed. This is a very nice zircon crystal.

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.