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Burgundy Hill Quarry, Tolland, Tolland Co., Connecticut, USAi
Regional Level Types
Burgundy Hill QuarryQuarry
Tolland- not defined -
Tolland Co.County

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Latitude & Longitude (WGS84):
41° 52' 3'' North , 72° 23' 42'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
Tolland14,891 (2017)2.2km
Rockville7,474 (2017)4.5km
Crystal Lake1,945 (2017)7.3km
Ellington14,693 (2017)7.4km
Coventry Lake2,990 (2017)11.8km

Stone quarry/garnet mine in Late Silurian Clough Quartzite and mica schist and Ordovician Middletown Formation meta-gabbroic amphibolite. The schist was mined for garnets for use as abrasives. More recently the quartzite has been quarried for architectural stone and the amphibolite for aggregate.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

5 valid minerals.

Detailed Mineral List:

Formula: Fe2+3Al2(SiO4)3
Habit: dodecahedral
Colour: burgundy
Description: Crystals to at least 7 cm, some partly replaced by chlorite.
Reference: Skehan, James W. (2008), Roadside Geology of Connecticut and Rhode Island. Mountain Press, Missuola, Montana: 110.
Formula: CuFeS2
Habit: massive
Colour: golden metallic
Description: grains on chlorite-replaced almandine
Reference: Harold Moritz collection
'Chlorite Group'
Habit: anhedral micaceous
Colour: dark green
Description: In the schist matrix and replacing some almandine crystals.
Reference: Harold Moritz collection
Formula: FeS2
Habit: massive
Colour: brassy
Description: grains on chlorite-replaced almandine
Reference: Harold Moritz collection
Formula: SiO2
Reference: Skehan, James W. (2008). Roadside Geology of Connecticut and Rhode Island (Missuola, MT: Mountain Press), p. 110.
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Habit: elongated prismatic to acicular
Colour: black
Description: crude crystals and fan-shaped aggregates to several cm hidden in black annite schist.
Reference: Harold Moritz collectin

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Group 4 - Oxides and Hydroxides
Group 9 - Silicates
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
AmBnXp, with (m+n):p = 1:2
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-

List of minerals for each chemical element

H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O AlmandineFe32+Al2(SiO4)3
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al AlmandineFe32+Al2(SiO4)3
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si AlmandineFe32+Al2(SiO4)3
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
S PyriteFeS2
S ChalcopyriteCuFeS2
Fe AlmandineFe32+Al2(SiO4)3
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Cu ChalcopyriteCuFeS2


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Skehan, James W. (2008), Roadside Geology of Connecticut and Rhode Island. Mountain Press, Missuola, Montana: 110.
Wintsch, Robert P.; Mary Roden-Tice and Michael J. Kunk. (2011), Poly-metamorphism and Poly-deformation of Bronson Hill Rocks, Northeastern Connecticut. Geological Society of Connecticut Fieldtrip Guidebook No. 2: 36.

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