EOSC 118 Learning Objective Activity Fall 2023
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School
University of British Columbia *
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Course
118
Subject
Arts Humanities
Date
Jan 9, 2024
Type
Pages
3
Uploaded by MajorSnow2506
Learning Objective Activity #1
Name:
John Doe
Student Number:
420
Insert your LOA question below:
Identify and describe common geographic origins for historic and magnificent
diamonds, emeralds and rubies.
Type your answer below (between 250 and 500 words):
Gemstone value is determined by the "4 Cs": color, clarity, cut, and carat (Smithsonian,
2023, p. 109). Magnificent gemstones are characterized by exceptional rarity in any of
the "4 Cs" combined with historical significance. One notable origin for such gemstones
was the State of Golconda, now identified as Hyderabad, India. The capital city served as
a market for cutting and trading diamonds from nearby mines (GIA, 2017). The Kollur
Mine, situated close to the Krishna River, provided access to numerous alluvial diamond
deposits, giving rise to notable diamonds like the Koh-i-Noor (105.6-ct.), Great Mogul
(280-ct.), and the 45-carat Hope diamond (Scalisi, 1992, p. 3). The Hope Diamond is
intriguing due to its unique chemical composition; unlike most diamonds composed of
carbon and nitrogen, the Hope Diamond contains boron atoms, resulting in a distinctive
blue hue (Smithsonian, 2023, p. 125).
Figure 1: Map of the Golconda region of India (University of Chicago Press).
Diamonds were not the sole gemstones favoured during the Golconda diamond
era. Mughal royalty favored Colombian emeralds (Koller, 1981, p. 88), as large emeralds
are a rarity, and Colombia was the only place where they are abundantly found. The
concentrated emerald deposits are situated at two mining sites north of the modern
capital, Bogotá: Muzo and Chivor. The renowned 632-carat Patricia emerald, extracted
in 1920, originated from Chivor (Koller, p. 89). Despite the mines' reputation for
producing exquisite emeralds, they bear a dark history as sites where Indigenous slaves
toiled during the Spanish conquest of South America (Koller, p. 86).
Similar to emeralds, exceptionally rare rubies are distinguished by their
substantial carat weight, specifically exceeding five carats (Travels in India, 1676). These
rubies often display a fine color known as Pigeon's Blood Red and predominantly come
from the Mogok Stone Tract in modern Myanmar, part of the historic Burma. The Mogok
region, with its older deposits, yields higher-quality diamonds, while the more recent
Mong Hsu site is known for its commercial-grade rubies (Palke et al., 2019).
List the references other than the course content that you used below. Use the
APA
reference and citation style
.
References
Evans, J. (2023).
10.3. Diamond: Global Occurrence and Mining
. UBC Canvas. Retrieved
October 6, 2023, from
https://canvas.ubc.ca/courses/124109/pages/10-dot-3-diamond-global-occurrence-and-mining?mod
ule_item_id=6022984
GIA. (2017, June 1).
Diamonds on location: Golconda
. GIA 4Cs.
https://4cs.gia.edu/en-us/blog/diamonds-location-golconda/
Koller, P. C. (1981). Emeralds of Colombia.
Gems & Gemology
,
17
(2), 80-92.
https://www.gia.edu/doc/SU81.pdf
Palke, A. C., Saeseaw, S., Renfro, N. D., Sun, Z., & McClure, S. F. (2019). Geographic origin
determination of ruby.
Gems & Gemology
,
55
(4). https://doi.org/10.5741/gems.55.4.580
Smithsonian. (2023).
Rock and Gem
(2nd ed.). Penguin Random House.
Scalisi, P. (1992). The Diamonds of India.
Bridgewater Review
,
10
(1), 3-7.
https://vc.bridgew.edu/br_rev/vol10/iss1/4
Sucher, S. D., & Carriere, D. P. (2008). The Use of Laser and X-ray Scanning to Create a Model
of the Historic Koh-i-Noor Diamond.
Gems & Gemology
, 124-141.
https://doi.org/10.5741/GEMS.44.2.124
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