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Middlesex Co., Massachusetts, USA

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Location is approximate, based on center of defined region.
 
Latitude & Longitude (WGS84): 42° North , 71° West (est.)
Neighbouring regions:
Museums in region:


No description has been added for this locality. Can you add one?


Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

Actinolite

'Actinolite-Tremolite Series'

Aegirine

Albite

var: Andesine

var: Cleavelandite

var: Oligoclase

var: Oligoclase-Albite

var: Pericline

'Albite-Anorthite Series'

Allanite-(Ce)

'Allanite Group'

Almandine

'Almandine-Spessartine Series'

Amphibole Supergroup

var: Uralite

Analcime

Anatase

Andalusite

var: Chiastolite

Andradite

'Andradite-Grossular Series'

Anhydrite

Anorthite

Antigorite

var: Bowenite

'Apatite'

Aragonite

Arsenopyrite

Augite

var: Titanian Augite

Aurichalcite

Autunite

Axinite-(Fe)

'Axinite Group'

Azurite

Babingtonite

Baryte

Beryl

'Biotite'

Bornite

Brookite

Brucite

Calcite

'Chabazite'

'var: Phacolite'

Chabazite-Ca

Chabazite-K

Chalcocite

Chalcopyrite

Chamosite

'Chlorite Group'

Chondrodite

Chrysocolla

Chrysotile

Clinochlore

var: Sheridanite

Clinozoisite

Cobaltite

'Columbite-(Fe)-Columbite-(Mn) Series'

'Columbite-Tantalite'

Copper

Cordierite

Cuprite

var: Chalcotrichite

'Delessite'

Diopside

Dolomite

var: Ferroan Dolomite

Epidote

'Fayalite-Forsterite Series'

Ferro-hornblende

'Ferro-kaersutite'

Fluorapatite

Fluorite

Forsterite

Galena

'Garnet'

Geikielite

Goethite

Graphite

Grossular

var: Hessonite

Gypsum

Hematite

var: Specularite

'Heulandite'

'Hornblende'

'Iddingsite'

Ilmenite

Kaersutite

Kamphaugite-(Y)

'K Feldspar'

'var: Adularia'

Kyanite

'Labradorite'

Laumontite

Leucoxene

'Limonite'

Magnesite

Magnetite

Malachite

'Manganese Oxides'

'var: Manganese Dendrites'

Marcasite

Meionite

Melanterite

Microcline

Millerite

Molybdenite

'Monazite'

Monazite-(Ce)

Montmorillonite

Muscovite

var: Fuchsite

var: Illite

var: Sericite

Natrolite

Nepheline

'Ochre'

'Olivine'

Opal

var: Opal-AN

Orthoclase

Pargasite

Pentlandite

Phlogopite

Pickeringite

Piemontite

Polydymite

Prehnite

'Pumpellyite'

Pyrite

Pyrolusite

'Pyroxene Group'

Pyrrhotite

Quartz

var: Amethyst

var: Blue Quartz

var: Jasper

var: Milky Quartz

var: Rock Crystal

var: Rose Quartz

var: Smoky Quartz

Rutile

Saponite

var: Bowlingite

'Scapolite'

'Scapolite Group'

Scheelite

var: Molybdoscheelite

Schorl

'Serpentine Subgroup'

Siderite

Sillimanite

'Smectite-claystone'

'Smectite Group'

'Soapstone'

Spessartine

Sphalerite

Spinel

var: Pleonaste

Stellerite

'Stilbite'

Stilbite-Ca

Stilpnomelane

Talc

var: Steatite

Thorite

var: Orangite

'Thorogummite'

Titanite

'Tourmaline'

Tremolite

Uraninite

'Uvite Series'

Vesuvianite

Violarite

Wollastonite

Xenotime-(Y)

Zircon

var: Cyrtolite


110 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Localities in this Region


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.
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