Agate - King George Island Antarctica
Brand : Sciencemall-USA
- SKU:
- JPT-54237
- Condition:
- New
- Availability:
- Usually ships in 24 hours.
- Weight:
- 1.00 LBS
- Minimum Purchase:
- 1 unit
- Maximum Purchase:
- 1 unit
- Shipping:
- Calculated at Checkout
Dynamic Agate from Baranowski Glacier
This beautiful agate came from the Baranowski Glacier, located on the west shore of Admiralty Bay, King George Island, Antarctica. It is a mixture of white, brown, black, and tan colors and was collected by a Polish Expedition.
Composition of Agates
Agates are primarily composed of chalcedony, a microcrystalline variety of quartz (SiO₂). Since quartz is a mineral, agate is mineralogically classified as a variety of quartz. While agates are made of the mineral quartz, they are usually referred to as a cryptocrystalline silica rock. A rock is typically defined as an aggregate of minerals, and agates fit this definition due to their layered composition of chalcedony, quartz, and sometimes opal or other inclusions.
Agate Details and What is Included
- Size: 60mm L × 58mm W × 4mm D, polished face. Sizing cube and display stand are not included.
- Ships with:
- Certificate of Authenticity (COA)
- Tag and tag stand
- Information about agates and the volcanology in Antarctica
- Legally procured. From an old scientific collection.
The Volcanic Legacy of Antarctica
Antarctica’s geology is diverse. Many parts of the continent are composed of ancient metamorphic and igneous rocks, and there are also regions with significant volcanic history.
While not as commonly reported as agates from places like Brazil or the U.S., Antarctic agates have been documented in certain volcanic regions and glacial deposits.
Volcanism is a fundamental driver of agate formation because it provides the materials, space, and conditions necessary for their creation. The interplay of cooling lava, gas bubbles, silica-rich solutions, and mineral impurities makes volcanic environments important geological settings for the production of agates.
Great Geology for Classroom or Geology Collection
This is a unique opportunity to buy a polished agate from Antarctica. Explore the volcanic history of Antarctica with this great specimen today.