SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

State Route 2 roadcut, Marlborough, Hartford Co., Connecticut, USAi
Regional Level Types
State Route 2 roadcutRoad Cutting
Marlborough- not defined -
Hartford Co.County
ConnecticutState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
41° 39' 10'' North , 72° 30' 0'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Terramuggus1,025 (2017)3.1km
Lake Pocotopaug3,436 (2017)6.1km
East Hampton2,691 (2017)8.5km
Glastonbury Center7,387 (2017)9.8km
Hebron9,298 (2017)11.1km


Schooner (1958) describes it as "an old rock cut on Route 2 near the Glastonbury-Marlborough line...in the latter town". Because the current State Route 2 expressway was under construction in the late 1950s in this area, Schooner's use of "old" in 1958 means this was a cut on the old Route 2, aka the New London Turnpike from Hartford. The current expressway bypasses much of this older route, but this locality is at an area where the expressway snakes through a pass in rugged terrain formed by the Devonian-Silurian Fitch, Clough and Littleton metasediments. Here the old turnpike, and most likely the locality also, was obliterated by the new overlapping expressway constructed through the same pass. It could be they were exploring rock opened by the new Route 2 construction. He attributes the discovery of what appears to be an alpine cleft type occurrence to himself and Klaus Albrecht.

In Schooner (1961) he provides further details on the occurrence:
"which lined an open cavity in pegmatized gneiss, near a small lens of metamorphosed limestone". This statement, and the presence of calc-silicate minerals in the cavity, suggests the cut was in the Fitch Formation - a calc-silicate gneiss with minor marble.

Because the exact locality is not known, the locality coordinates are based on the presence of Rt. 2 expressway cuts visible on USGS topo maps and where the Fitch Formation crosses the road.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

Anhydrite
Formula: CaSO4
Description: Voids in massive prehnite where anhydrite has dissolved away.
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Habit: tabular, axe-head shaped
Colour: lavender-brown
Description: "Beautiful groups of tabular crystals, up to an inch across, were associated with prehnite and several other minerals in a small cavity in gneiss. The largest group was almost three inches long. Most of the crystals were colored green by inclusions of chlorite, but some were of a typical lavender-brown tint and quite gemmy. Pseudomorphs of chlorite after axinite were fairly abundant. This is the first reported occurrence of axinite in Connecticut." Schooner (1958) "Groups of simple axe-shaped crystals, up to two inches across, were embedded in loose chlorite, with some admixed clay. The crystals were of two types: lavender-brown, glassy, and without inclusions, and greenish, opaque, and thoroughly impregnated with the chlorite. Some of the smaller examples of the latter kind were pseudomorphs of chlorite after axinite. In all cases, there seemed to be two generations of axinite crystals, differing in size but not in habit. One large crystal had a number of smaller ones clustered on its surfaces." Schooner (1961)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
'Chabazite'
Description: "A few tiny crystals, of cube-like form, were observed at the axinite locality in Marlborough." Schooner (1958)
Reference: - Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
'Chlorite Group'
Habit: granular, pseudomorphs after axinite
Colour: green
Description: axinite crystals were "colored green by inclusions of chlorite... Pseudomorphs of chlorite after axinite were fairly abundant." Schooner (1958)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Diopside
Formula: CaMgSi2O6
Description: "Some little prismatic crystals [of scapolite] have been noted with diopside, close to the axinite pocket in Marlborough." Schooner (1961).
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut.
'K Feldspar'
Colour: white
Description: "The author has collected small curved crystals, with prehnite, axinite, and zoisite, at the road cut locality in Marlborough." Schooner (1961). Referred to as orthoclase occurring as "A few little opaque white crystals" in Schooner (1958).
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut.
'K Feldspar var: '
Formula: KAlSi3O8
Colour: white
Description: "The author has collected small curved crystals, with prehnite, axinite, and zoisite, at the road cut locality in Marlborough." Schooner (1961). Referred to as orthoclase occurring as "A few little opaque white crystals" in Schooner (1958).
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Description: "The author has seen a little laumontite on specimens from the axinite locality in Marlborough." Schooner (1961)
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut.
'Monazite' ?
Description: No details provided by the reference.
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Habit: tabular
Colour: yellow
Description: "Klaus Albrecht and the author collected many examples of yellow prehnite, associated with axinite and a variety of other minerals...One small piece shows beautiful individual ½ inch tabular crystals... the finest that the author has ever seen. Much of the massive prehnite contained anhydrite casts." Schooner (1958)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Quartz
Formula: SiO2
Colour: smoky
Description: "Recently, a few light smoky crystals, up to two inches long, were obtained from a cavity in gneiss in the cut on Route 2 in Marlborough...The crystals were coated with granular chlorite, and several showed trapezohedral modifications; these are rare in Connecticut, though typical of the Alpine veins in which the mineral associations are very similar." Schooner (1958)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
'Scapolite'
Description: "Some little prismatic crystals have been noted with diopside, close to the axinite pocket in Marlborough." Schooner (1961).
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut.
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Description: "Cuts along Route 2, near the Marlborough-Glastonbury town line, contain innumerable crystals, some of good size." Schooner (1958).
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
'Stilbite subgroup' ?
Formula: (Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
Colour: white
Description: "Small white crystals of what seems to be stilbite were obtained from the axinite cavity in Marlborough, though they have not been positively identified." Schooner (1958)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Titanite
Formula: CaTi(SiO4)O
Colour: light brown
Description: "A few light brown crystals were found with the axinite at Marlborough." Schooner (1961)
Reference: Schooner, Richard. (1961): The Mineralogy of Connecticut.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Colour: white
Description: "A few white crystals have been seen at…the cut on Route 2 in Marlborough where axinite was found" Schooner (1958)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Wollastonite ?
Formula: CaSiO3
Habit: flattened
Colour: gray
Description: "Robert Gallant found a few flattened gray crystals in the axinite pocket in Marlborough; the author is inclined to consider them wollastonite." Schooner (1958)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Zoisite
Formula: Ca2Al3[Si2O7][SiO4]O(OH)
Habit: columnar, divergent
Colour: tan or light brown
Description: "A tan or light brown columnar mineral, with a somewhat divergent habit, was intimately associated with axinite, prehnite, and various other materials, in the remarkable cavity at the cut along Route 2 in Marlborough; although it has not been positively identified as yet, the author believes it to be zoisite." Schooner (1958. "optically confirmed" Schooner (1961)
Reference: Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anhydrite7.AD.30CaSO4
Group 9 - Silicates
Axinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
Diopside9.DA.15CaMgSi2O6
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Wollastonite ?9.DG.05CaSiO3
Zoisite9.BG.10Ca2Al3[Si2O7][SiO4]O(OH)
Unclassified Minerals, Rocks, etc.
'Chabazite'-
'Chlorite Group'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Monazite' ?-
'Scapolite'-
'Stilbite subgroup' ?-(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O

List of minerals arranged by Dana 8th Edition classification

Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anhydrite28.3.2.1CaSO4
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Axinite-(Fe)56.2.2.1Ca2Fe2+Al2BSi4O15OH
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Zoisite58.2.1b.1Ca2Al3[Si2O7][SiO4]O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite ?65.2.1.1cCaSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Chabazite'-
'Chlorite Group'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Monazite' ?-
'Scapolite'-
'Stilbite subgroup' ?-(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O

List of minerals for each chemical element

HHydrogen
H Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
H PrehniteCa2Al2Si3O10(OH)2
H StauroliteFe22+Al9Si4O23(OH)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
BBoron
B Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
OOxygen
O Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
O PrehniteCa2Al2Si3O10(OH)2
O DiopsideCaMgSi2O6
O QuartzSiO2
O StauroliteFe22+Al9Si4O23(OH)
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
O AnhydriteCaSO4
O LaumontiteCaAl2Si4O12 · 4H2O
O K Feldspar (var: Adularia)KAlSi3O8
O TitaniteCaTi(SiO4)O
O Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
O WollastoniteCaSiO3
NaSodium
Na Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Al PrehniteCa2Al2Si3O10(OH)2
Al StauroliteFe22+Al9Si4O23(OH)
Al ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al K Feldspar (var: Adularia)KAlSi3O8
Al Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Si Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Si PrehniteCa2Al2Si3O10(OH)2
Si DiopsideCaMgSi2O6
Si QuartzSiO2
Si StauroliteFe22+Al9Si4O23(OH)
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Si LaumontiteCaAl2Si4O12 · 4H2O
Si K Feldspar (var: Adularia)KAlSi3O8
Si TitaniteCaTi(SiO4)O
Si Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
Si WollastoniteCaSiO3
SSulfur
S AnhydriteCaSO4
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
K Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
CaCalcium
Ca Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Ca PrehniteCa2Al2Si3O10(OH)2
Ca DiopsideCaMgSi2O6
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Ca AnhydriteCaSO4
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca TitaniteCaTi(SiO4)O
Ca Stilbite subgroup(Na/Ca/K)6-7[Al8-9Si27-28O72] · nH2O
Ca WollastoniteCaSiO3
TiTitanium
Ti TitaniteCaTi(SiO4)O
FeIron
Fe Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Fe StauroliteFe22+Al9Si4O23(OH)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.
Schooner, Richard. (1961): The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 398.

External Links


Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.8.14 15:54:39 Page generated: 2020.4.20 19:59:39
Go to top of page