Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Civilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex Co., Connecticut, USA

This page is currently not sponsored. Click here to sponsor this page.
 

Detailed Mineral List:


Albite
Formula: Na(AlSi3O8)
Colour: white
Reference: Harold Moritz collection
Almandine
Formula: Fe2+3Al2(SiO4)3
Colour: red
Description: XRF analyses of other pegmatitic garnets from the district indicate they are mostly almandine, with some spessartine component. Garnets from this locality have not been tested.
Reference: Harold Moritz collection
Beryl
Formula: Be3Al2(Si6O18)
Colour: pale green
Reference: http://www.lmscc.org/CCCQuarry.htm
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Colour: yellow to orange-brown
Description: Typically in radiating groups with tiny columbites. Good gem crystals rare.
Reference: www.lmscc.org/CCCQuarry.htm; Williams (circa 1945)
Columbite-(Fe)
Formula: FeNb2O6
Habit: elongated, tabular to blocky and equant
Colour: black with iridescence
Description: Crystals vary from microscopic ones typically attached to beryls to large masses over 36 pounds in pegmatite matrix. They can be tabular, elongated or blocky and equant. Typically iridescent. Besides the 19th century wet chemical analyses given in the reference, also confirmed by Raman spectroscopy by Paul Bartholomew, U. of New Haven.
Reference: Hunt, T. S. (1852): Examination of some American Minerals. American Journal Of Science: s. 2: 14: 40-1.
Fluorapatite
Formula: Ca5(PO4)3F
Colour: pale green
Fluorescence: yellow
Reference: www.lmscc.org/CCCQuarry.htm
Marcasite
Formula: FeS2
Habit: anhedral
Colour: dark greenish-brassy
Description: Anhedral masses to a few cm in massive quartz that rapidly decompose and produce rusty stains around a small void.
Reference: Harold Moritz collection
Microcline
Formula: K(AlSi3O8)
Colour: tan
Reference: www.lmscc.org/CCCQuarry.htm
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Description: Mostly anhedral masses, a few sub to euhedral crystals were found at the prospect.
Reference: www.lmscc.org/CCCQuarry.htm
Quartz
Formula: SiO2
Colour: smoky
Description: Mostyl massive, the only crystals come from tiny pockets.
Reference: www.lmscc.org/CCCQuarry.htm
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Habit: prismatic
Colour: black
Description: Mostly small crystals, not common.
Reference: Harold Moritz collection
Spessartine ?
Formula: Mn2+3Al2(SiO4)3
Colour: red
Description: XRF analyses of other pegmatitic garnets from the district indicate they are mostly almandine, with some spessartine component but not enough to change the species. Garnets from this locality have not been tested.
Reference: http://www.lmscc.org/CCCQuarry.htm
Uraninite
Formula: UO2
Colour: black
Description: Tiny crystals rarely found.
Reference: http://www.lmscc.org/CCCQuarry.htm

References

Cook, John E. (1850 circa), Notes by him in the account book of his father Nathaniel Cook. Haddam Historical Society, Thankful Arnold House, Haddam, Connecticut.

Hunt, T. S. (1852), Examination of some American Minerals. American Journal Of Science: s. 2: 14: 340-1.

Shepard, Charles Upham, Sr. (1870), A new variety (species?) of Columbite. American Journal of Science: s. 2:, 50: 90.

Delafontaine, Prof. (1877), On the Hermannolite of Shepard, and on the Samarskite of North Carolina. American Journal of Science: s. 3, 13(77): 390.

Williams, Horace S. (1899), Letter to Miss Eveline Brainerd of Haddam, February 18, 1899. Brainerd Public Library, Haddam, Connecticut.

Davis, James W. (1901), The Minerals of Haddam, Conn. Mineral Collector: 8(4): 50-54.

Davis, James W. (1901), The Minerals of Haddam, Conn. Mineral Collector: 8(5): 65-70.

Williams, Horace S. (circa 1945), Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.

External Links


Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 22, 2017 14:39:07 Page generated: October 19, 2017 22:10:08
Go to top of page