is a science gift store and a geology specimen outlet for the adult science enthusiast, science educator, and scientific researcher. We specialize in selling some of the coolest and most unique specimens on the planet. From Earth's oldest rocks to the Pacific ocean floor manganese nodules, there is always something interesting to add to the science enthusiast's collection!

Large Kimberlite "Big Hole" South Africa Diamond Mine Large

Kimberlite Big Hole South Africa Diamond Mine XRF
Kimberlite Big Hole South Africa Diamond Mine XRF
Item# JPT-17463
Regular price: $285.00
Sale price: $245.00
Availability: Usually ships the next business day

Product Description

Kimberlite Big Hole South Africa Diamond Mine XRF
The "Big Hole" or Kimberly Mine, originally referred to as the Colesberg Kopje, is an open-pit mine in Kimberley, South Africa. It is claimed to be the second largest hole excavated by hand. From 1871 to 1914 up to 50,000 miners dug the hole with picks and shovels, yielding 6,000 pounds of diamonds. The underground Kimberley Mine was mined to a depth of well over 1/2 mile (1,097 meters). It was closed in 2005.

Kimberlite is an igneous, oftentimes diamond-bearing rock that is named after the town of Kimberley, South Africa. The original frontier town was called New Rush, and quickly homes and businesses arose from the barren landscape. In June 1873, New Rush was renamed Kimberley. The 1869 discovery of the Star of South Africa Diamond (an 83.5-carat (16.70 g) spawned a diamond rush to the area which resulted in the open-pit mine called the "Big Hole." The morphology of kimberlite pipes and the classical carrot shaped brecciated fragments seen in it is the result of explosive diatreme volcanism from very deep mantle derived sources. Volcanic explosions produced vertical columns of rock that rose from deep magma reservoirs.

Size: 57mm L X 48mm W X 14mm D, Weight: 85.7grams; XRF Analysis included.

This material was legally obtained in a trade with a scientific institution. Comment: Only a few specimens this nice, with crust.

Shipped in a perky display case with information, Certificate of Authenticity, and plexiglass tag stand. Large plexiglass stand, black tag stand and photo cube not included.

This specimen makes a great addition to any important geological collection.

FREE PRIORITY SHIPPING (2-3 days) IN THE USA! Expedite is available.

Thank you for shopping at Serving science enthusiasts worldwide for 25 years!