Ankara Agate Specimen. Polished on one side.
Weight: 50g
Length: 71mm
Width: 37.5mm
Thickness at the thinnest point: 2.1mm
Thickness at the thickest point: 18.8mm
Cut with the collector in mind, our specimen pieces feature the organic character of the raw stone with one or two feature faces. The cuts which create the featured faces are carefully chosen to not only display a gorgeous facet, but to allow the natural beauty of the raw stone to remain minimally altered. Faces are polished to a matte or soft gloss finish.
Turkish Ankara Agates- obtained between the northern part of the Cubuk district of Ankara and the southern part of the Sabanozu district of Cankiri- are known for their distinctive patterns and colors. They can be found in a variety of types, including:
*Amygdaloidal Agate-
This agate has a basaltic matrix with rounded chalcedony particles, some of which have banded structures in shades of green and lilac-blue.
*Ankara Stick & Pseudomorph Agate-
This translucent agate has banded colors and patterns that are the result of pseudomorrphic replacement and also has a section of dense rod-like formations. This occurs when agate fills a cavity within a rock that already contains mineral formations throughout. In the case of these stick agates from Turkey, the agate formed as a pseudomorph after aragonite and/or sagenite crystals. In some cases, these aragonite crystals form as hollow tubes that, when polished, contain agate and/or druzy quartz within.
*Ankara Tube Agate-
This translucent agate has brown-rimmed, highly patterned tube structures that can be seen rising through the stone.
