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Civilian Conservation Corps Quarry (CCC Quarry; Smith Quarry; Turkey Hill quarry lot), Haddam, Middlesex Co., Connecticut, USA

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Detailed Mineral List:
Albite
Formula: NaAlSi3O8
Habit: anhedral
Colour: white
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Colour: black
Description: Formerly known as biotite. Williams (circa 1945) notes "large masses".
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut; P. Cristofono collection, 2009.
Photo: © 2012, JGW. Annite from Civilian Conservation Corps Quarry, Haddam, Middlesex Co., Connecticut, USA
Beryl
Formula: Be3Al2(Si6O18)
Description: Williams give no details, has not been found during collecting since 1990.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Colour: blue
Description: Williams give no details, has not been found during collecting since 1990.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6-8H2O
Description: Williams give no details, has not been found during collecting since 1990.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Microcline
Formula: KAlSi3O8
Habit: subhedral prisms
Colour: white to tan
Description: A few good subhedral crystals up to a few decimeters were found at the CCC quarry. Otherwise it is generally just in anhedral masses.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Description: Mostly anhedral masses, a few sub to euhedral crystals were found at the prospect.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Photo: © 2010 Harold Moritz. Muscovite from Civilian Conservation Corps Quarry, Haddam, Middlesex Co., Connecticut, USA
Quartz var: Smoky Quartz
Formula: SiO2
Habit: massive
Colour: gray
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Habit: stubby prisms with simple rhombohedral terminations
Colour: black
Description: Very fragile crystals several cms across common, rarely well terminated thumbnail crystals in quartz.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Photo: © 2010 Harold Moritz. Schorl from Civilian Conservation Corps Quarry, Haddam, Middlesex Co., Connecticut, USA
Uraninite
Formula: UO2
Description: Williams give no details, has not been found during collecting since 1990.
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.


10 entries listed. 8 valid minerals.

References

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

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