Cacholong

Cacholong, also known as Kalmuck agate,^[1] is a form of common opal,^[1] although it is often mistaken for agate or chalcedony,^{[citation needed]} and Parker Cleaveland claimed it was a variety of chalcedony.^[2]^: 249 It has a milky white colour^[3] that can also be described as bluish white or cream.^[4] With a Mohs hardness of about 6,^{[citation needed]} it is used for carving, cameos, etc.^{[citation needed]} The word "cacholong" has also been used as a synonym for actinolite.^[4]

Found in Austria, Czech Republic, Mongolia and Uzbekistan,^{[citation needed]} its name possibly comes from the Cach River in Bukhara.^[2]^: 249 It is also known to occur in Iceland; in the town of Huttenberg, Austria; in Deerfield^[2]^: 249 and Pittsfield, Massachusetts, U.S.; in the Faroe Islands; in Elba, Italy; and in Spain;^[3] and in Nova Scotia, Canada.^[5]

The gemstone sculpture Sultry Midday by Vasily Konovalenko, which depicted two women having tea, incorporated a cacholong teacup.^[6]

References

^ ^a ^b "Cacholong". www.mindat.org. Retrieved 2025-03-10.
^ ^a ^b ^c Cleaveland, Parker (1822). An Elementary Treatise on Mineralogy and Geology: Designed for the Use of Pupils, for Persons, Attending Lectures on Theses Subjects, and as a Companion for Travellers in the United States of America. Cummings and Hilliard.
^ ^a ^b Comstock, John Lee (1859). An Introduction to Mineralogy: Adapted to the Use of Schools and Private Students. Pratt, Oakley.
^ ^a ^b Tindle, A. G. (2008). Minerals of Britain and Ireland. Liverpool University Press. ISBN 978-1-903544-22-8.
^ Jackson, Charles T.; Alger, Francis (1833). "Remarks on the Mineralogy and Geology of Nova Scotia". Memoirs of the American Academy of Arts and Sciences. 1: 217–330. ISSN 0096-6134.
^ Nash, Stephen E.; Wicker, Richard M.; Hagadorn, James W.; Muntian, Tatiana (2016). Stories in Stone: The Enchanted Gem Carvings of Vasily Konovalenko. University Press of Colorado. ISBN 978-1-60732-502-4.

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[:0-1] "Cacholong". www.mindat.org. Retrieved 2025-03-10.

[:1-2] Cleaveland, Parker (1822). An Elementary Treatise on Mineralogy and Geology: Designed for the Use of Pupils, for Persons, Attending Lectures on Theses Subjects, and as a Companion for Travellers in the United States of America. Cummings and Hilliard.

[:2-3] Comstock, John Lee (1859). An Introduction to Mineralogy: Adapted to the Use of Schools and Private Students. Pratt, Oakley.

[:3-4] Tindle, A. G. (2008). Minerals of Britain and Ireland. Liverpool University Press. ISBN 978-1-903544-22-8.

[5] Jackson, Charles T.; Alger, Francis (1833). "Remarks on the Mineralogy and Geology of Nova Scotia". Memoirs of the American Academy of Arts and Sciences. 1: 217–330. ISSN 0096-6134.

[6] Nash, Stephen E.; Wicker, Richard M.; Hagadorn, James W.; Muntian, Tatiana (2016). Stories in Stone: The Enchanted Gem Carvings of Vasily Konovalenko. University Press of Colorado. ISBN 978-1-60732-502-4.

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