Amethyst.

MAINE.

Oxford County, gem crystals found on Deer Hill, in town of Stow, and on Pleasant Mountain, in town of Denmark.

Apatite. Androscoggin County, in transparent pink, purple, blue, and green crystals, at Apatite Hill, Wade, and Pulsifer quarries in town of Auburn, Berry quarry, town of Poland. Oxford County, at Hebron.

Aquamarine. See Beryl.

Argentite (silver glance). Hancock County, reported from Sullivan silver

mine.

Arsenopyrite (arsenical pyrite). Franklin County, Titcombs Hill, Farmington. Hancock County, occurs in Blue Hill and Brooksville copper mines and Sullivan silver mines; was prospected on Verona Island. Knox County, occurs at Owls Head and South Thomaston. Oxford County, occurs at Corinna, Greenwood, Rumford, and at Mount Rubellite in town of Hebron. Waldo County, occurs in veins in schist at Fort Point. York County, Bonds Mount and Newfield, and accompanying silver ores at Lebanon and Acton.

Beryl. Aquamarine.—Kennebec County, at Winslow, with mica and fluorite in cassiterite vein. Oxford County, French Mountain, town of Albany; Dunton mine, town of Newry; Mount Mica, town of Paris; associated with corundum, town of Greenwood; Sugar Hill and Harndon Hill, town of Stoneham. Sagadahoc County, at Topsham feldspar quarries. Casium beryl.—Androscoggin County, Berry quarry, town of Poland. Oxford County, town of Hebron; on Dudley farm, town of Buckfield. Golden beryl.-Oxford County, Edgecomb Mountain, town of Stoneham, and Speckled Mountain, town of Peru.

Opaque varieties common in pegmatites, notably: Androscoggin County, Apatite Hill, town of Auburn. Hancock County, in cassiterite-bearing granite at Catharine Hill. Oxford County, Noyes mine, town of Greenwood.

Bornite (purple copper ore). Hancock County, has been mined in Ellsworth schist at Blue Hill. Washington County, Lubec lead mine and Pembroke copper prospects; not abundant.

Brown iron ore (bog iron ore). Lincoln County, occurs on Pemaquid Ledge. Oxford County, at Rumford. Piscataquis County, Dover; several deposits of large size. Somerset County, Skowhegan; several large deposits. York County, New Limerick and Newfield.

Brown iron ore (brown hematite, limonite). Aroostook County, occurs at Houlton and Linneus. Hancock County, most abundant oxidized mineral in Blue Hill and Brooksville district. Piscataquis County, has been mined at Katahdin mines. Washington County, has been mined at Trescott and at Lubec lead mine; at latter place trace of gold, some silver. Calcite. Knox County, Rockland in massive and crystalline forms in quarries. Cassiterite. Kennebec County, occurs in 1-inch vein at Winslow. Oxford County, a few specimens at Mount Mica and Greenwood.

Cement material. Knox County, limestone near Rockland suitable for Portland cement.

Cerargyrite (silver chloride). Hancock County, reported from Sullivan silver mine.

Chalcocite (copper glance). Hancock County, sparingly on chalcopyrite at Blue
Hill copper mines; at Douglas mine carries gold and silver.
Chalcopyrite (copper pyrites). Hancock County, important mineral of Blue
Hill; has been mined at Douglas, Twin Lead, and other mines for gold

and silver. Somerset County, has been mined at Robinson mine. Washington County, occurs in old mines at Cooper; has been mined at Cherryfield and Lubec lead mine for gold and silver, at Pembroke copper prospect. Clay (brick). Dug: Androscoggin County, at Danville, Durham, Leeds Junction, and elsewhere. Aroostook County, Masardis and Presque Isle. Cumberland County, Brunswick, North Yarmouth, and Portland. Hancock County, East Sullivan, Ellsworth, Orland, and elsewhere. Kennebec County, Augusta, Waterville, and Winslow. Knox County, deposits and brick works at Thomaston, South Thomaston, and Rockland. Oxford County, East Bethel. Penobscot County, Bangor, Brewer, and Howland. Piscataquis County, Abbot Village and East Dover. Sagadahoc County, Bath, Topsham, and Woolwich. Somerset County, Madison. Washington County, Calais and Lubec. York County, Eliot, Kennebunk, Saco, and elsewhere.

Columbite. Androscoggin County, sparingly in pegmatite at Apatite Hill, town of Auburn. Cumberland County, town of Standish. Oxford County, Mount Mica, town of Paris. Sagadahoc County, Harndon Hill, town of Stoneham, in Fishers quarry in pegmatite; Mount Ararat and Willes feldspar quarry, town of Topsham.

Copper. See Bornite, Chalcocite, and Chalcopyrite.

Diabese. Penobscot County, near Bangor at Harmon Hill.

Diatomaceous earth (tripolite, "fossil meal"). Hancock County, occurs abundantly in all pond bottoms near coast; was mined at Blue Hill (in beds 4 to 6 feet thick) and Surry. Washington County, was mined at Beddington.

Epidote. Sagadahoc County, occurs at Phippsburg.

Essonite. Sagadahoc County, Phippsburg. Oxford County, found at several

places.

Feldspar. Extensively quarried from pegmatite deposits. Androscoggin
County, quarried at Apatite Hill, town of Auburn; Berry quarry, town
of Poland. Lincoln County, has been quarried in town of Edgecomb.
Oxford County, has been quarried at Hibbs quarry and Mills quarry,
town of Hebron; at Mount Mica, town of Paris; and at West Peru.
Piscataquis County, has been quarried at Brownsville. Sagadahoc
County, quarried at Goldring's quarry; Georgetown, Willes quarries;
Mount Ararat; and at Fisher's quarry, town of Topsham.
Flagstone. Mica schist suitable for flagging occurs in Kennebec County, at

Winthrop. Sagadahoc County, at Phippsburg. York County, Acton and
Lebanon, and at other localities. Also sandstones in northern part of
State.

Galena. Hancock County, occurs in Ellsworth schist near Blue Hill and Brooksville. Oxford County, in granite at Mount Glines. Penobscot County, in thin veins near Hampden and Corinna. Piscataquis County, at Dover. Somerset County, abundant at Bingham mine; small quantity at Robinson mine has been mined. Washington County, Cherryfield, Lubec lead mine, and Pembroke copper prospect.

Garnet.

Gold.

See Essonite.

Franklin County, associated with pyrite-bearing slates at Strong. Hancock County, has been mined in granite with molybdenite at Catharine Hill; is sparingly present with sulphides in Blue Hill mines and in some river gravels and crevices in underlying rocks. Oxford County, has been found in some river gravels. Somerset County, occurs at Moscow and in

some river gravels. Washington County, in quartz veins at Bailey, Baring, and Cutler, and in some river gravels and in crevices in underlying rocks. Granite. Quarried: Aroostook County, Smyrna. Cumberland County, at Brighton, Brunswick, Freeport, North Yarmouth, Portland, Pownal, Westbrook, Woodfords, and Yarmouth. Franklin County, Chesterville, Farmington Falls, and North Jay. Hancock County, Bar Harbor, Blue Hill, Brooksville, Dedham, Franklin, East Franklin, West Franklin, Hall quarry, Mount Desert, Northeast Harbor, Orland, Sedgwick, Southwest Harbor, Stonington, Sullivan, West Sullivan, North Sullivan, and Swan Island. Kennebec County, Augusta, Hallowell, Mainstream, and Wayne. Knox County, Clark Island, Hurricane Isle, Long Cove, Pequoit, Rockland, South Thomaston, St. George, and Vinal Haven. Lincoln County, Round Point, Waldoboro, and Whitefield. Oxford County, Bryant Pond, Fryeburg, Norway, Oxford, Waterford, and Welchville. Penobscot County, Lincoln, black granite at Hermon Hill. Piscataquis County, Guilford. Somerset County, Canaan, Mainstream, Norridgewock, and South Norridgewock. Waldo County, Frankfort, Lincolnville, Searsport, and Swanville. Washington County, Addison, Baileyville, Calais, Charlotte, Jonesboro, Jonesport, Marshfield, Millbridge, and Red Beach. York County, Alfred, Berwick, Biddeford, Kennebunkport, North Berwick, Sanford.

mouth.

Graphite (plumbago). Cumberland County, occurs in pegmatite dike near YarFranklin County, in schist near Madrid. Hancock County, in pegmatite and schists near Blue Hill and Brooksville. Kennebec County, at Gardiner, on Kennebec River. Oxford County, sparingly in granite

and mica schist in towns of Paris, Rumford, and Woodstock. Sagadahoc County, has been mined at Georgetown and Phippsburg. Waldo County, occurs at Belfast, disseminated through clay slate.

Gravel. Abundant in nearly all parts of the State and is at present the principal source of road material.

Hematite (red iron ore). Aroostook County, occurs at Curriers. Piscataquis County, has been mined at Katahdin mines.

Iron. See Brown iron ore, Hematite, Magnetite, and Pyrite.

Kunzite (spodumene). Oxford County, lilac-colored, occurs in pegmatite in town of Andover.

Lepidolite. Androscoggin County, in pegmatite deposits at Apatite Hill, and in the Wade and Pulsifer quarries, town of Auburn. Oxford County, at the Denton quarry, in the town of Newry, and at Mount Mica, town of Paris; Mount Rubellite, town of Hebron.

Limestone (lime). Knox County, extensively quarried and burned in vicinity of Rockland, Rockport, Thomaston, and West Warren. Waldo County, Searsmont.

Magnetite (magnetic iron ore). Aroostook County, occurs at Linneus, impregnating slaty rock. Cumberland County, Raymond, in thin sheets in epidotic gneiss. Hancock County, in schist at Douglas, Twin Lead, Owen, and other mines near Blue Hill and Brooksville, and on Marshall Island. Knox County, Union. Oxford County, Buckfield. Sagadahoc County, at Topsham, Spragues quarry, as trisoctahedral crystals in pegmatite. Manganese. See Wad and Rhodonite.

Marl. Aroostook County and elsewhere in ponds and swamps in the northern part of the State.

Mica (biotite). Common in many pegmatite deposits of the State. Mica (muscovite). Abundant in all of the pegmatite deposits. Oxford County, small quantities have been mined at Mount Mica, town of Paris, Bennett and Pingree farms, town of Albany; Hibbs quarry, town of Hebron; southwest part of town of Waterford.

Molybdenite (sulphide of molybdenum). Cumberland County, occurs in granite in close connection with pegmatite at a number of places in Brunswick. Hancock County, under similar conditions at Catharine Hill and on Long Island in Bluehill Bay. Washington County, Cooper, 22 miles southwest of Calais, with fluorspar and bismuth in narrow pegmatite dikes cutting granite along joints, and as impregnations in granite.

Ocher. Androscoggin County, has been mined at Lisbon. Cumberland County, occurs at Bridgton, Naples, and Sarmonite.

Peat.

Common and widely distributed over the entire State. A small plant for manufacturing machine peat has been operated for several years at Lewiston. Experimental plants have intermittently produced some peat fuel near Bangor and Portland.

Platinum. Knox County, in peridotite, East Union.

Hermon. Piscataquis County, in pyrrhotite ores.

Penobscot County, at

Pollucite. Oxford, found in pegmatite at Buckfield and Hebron.
Pyrargyrite (ruby silver). Hancock County, occurs at Sullivan, Franklin, and
Hancock, with galena, native silver, silver glance, pyrite, chalcopyrite,
etc., sparingly.

Pyrite. Hancock County, Douglas, Twin Lead, Bluehill, and other mines in Bluehill and Brooksville district, and in granite at Catharine Hill. Oxford County, in granite at Mount Glines. Somerset County, has been mined at Robinson mine. Washington County, Cherryfield; has been mined at Lubec lead mine.

Pyrrhotite. Hancock County, Douglas, Twin Lead, Monmouth, and other mines have been worked. Knox County, Miller farm, East Union. Piscataquis County. Somerset County, Robinson mine.

Quartz. Abundant in all pegmatite deposits. White quartz: Androscoggin County, mined with feldspar at Apatite Hill, town of Auburn. Cumberland County, has been mined near Cumberland Mills. Rose quartz: occasionally used as a gem. Oxford County, Tubbs Ledge and French Mountain, town of Norway; Mount Mica, town of Paris. Smoky quartz: Androscoggin County, occurs at Apatite Hill, town of Auburn. Oxford County, Blueberry Hill, town of Stoneham. Quartzite. Hancock County, Mount Desert Island, a mile south of Bar Harbor, on the east and west sides of Strawberry Hill (quarried), 31⁄2 miles west of Bar Harbor and about 2 miles south of Salisbury Cove (quarried). Knox County, Thomaston Township, eastern part; abundant at Mount Battie and near by, north of Camden, west of Rockport, on west shore of Rockport Harbor; Rockland, and Thomaston; Pine Hill, north of Clam Cove; South Thomaston Township, north of the north end of Weskeag River estuary. Waldo County, western part of North Islesboro. Rhodonite. Hancock County, was mined on Osgood farm, Blue Hill, when furnace of Katahdin Iron Works was in blast.

Aroostook

Rhyolite. Common in eastern part of Penobscot Bay region.
County, in the region between Ashland and Presque Isle.

Hancock

County, Frenchmans Bay region, western part of Brookville Township. Castine Township, abundant throughout, northwestern part of Deer Isle, western part of Isle au Haut, Little Deer Isle, southern part of Mount Desert Island. Knox County, on the islands of Vinal Haven, and on North Island, and in northern part of the village of Vinal Haven. Piscataquis County, Mount Kineo region near Moosehead Lake. Washington County, eastern part; Englishman Bay region and Cobscook Bay region; Machias Township, west of East Machias; in town of Eastport, including Moose Island (abundant); just northeast of the railroad station at Eastport; along the shore opposite Clark Ledge in the northern part of the village of Eastport; on the large hill east of Carryingplace Cove; Jonesboro Township, eastern part, 1 miles northwest of Black Head, near Shoppees Point; constitutes the greater part of the peninsula northeast of Lubec (Seward Neck); Perry Township, abundant in southern part. Road metal. The coastal region of Maine is well supplied with hard-rock road materials of good quality, which are in many places so situated that they can be cheaply quarried and shipped by water. The rocks named in order of utility are trap, rhyolite, quartzose schist, and quartzite conglomerate, but granite, quartzite, limestone, slate, and clayey schist are also used. At the present time gravel, which occurs in abundance in nearly all parts of the State, is the principal road material used in Maine. See Gravel, Limestone, Quartzite, Quartzose schist, Rhyolite, and Trap. Rose quartz.

See Quartz.

Sand (building). Dug at many places throughout State.
Sand (glass). Knox County, Camden, abundant; not mined.

Liberty, pure, granular quartz.

Waldo County,

Schist (quartzose schist). Cumberland County, near Portland and Gorham and southeast of Sebago Lake, between Fryeburg Lake and Ossipee River; Brunswick Township, just north of the Harpwell line (quarried); Cape Elizabeth Township, south and west of Portland; Standish Township, western part. Washington County, considerable areas in eastern part from Machias to West Quoddy Head and Lubec; Jonesboro Township, eastern part, at Black Head on the northeast shore of English Bay and elsewhere; Machias Township, at numerous points within a distance of 2 miles from Machias along the road to Machiasport. York County, in eastern part a belt 3 miles wide extends from Old Orchard 16 miles northward to a point beyond Buxton and occupies a coastal area of about 50 square miles, comprising areas in Kennebunk and Kennebunkport; the rock is well exposed along the coast from York to Kennebunkport; in the western part it forms a belt about 6 miles wide, extending from York and Kittery on the coast 50 miles northward to Saco River and Cumberland County line; the rock is well exposed at Kittery and South Brunswick, between these two points, and along the road between Kittery and the southern portion of the town of York; quarried at Saco near Boston & Maine depot; Wells Township, abundant.

Silver (native). Hancock County, reported from Eggemoggin and Sullivan
mines. See also Argentite, Cerargyrite, Pyrargyrite, and Stephanite.
Slate. Piscataquis County, slate region in central part of State; quarried at
Barnard plantations, Blanchard, Brownville, Monson, and Williamsburg.
Somerset County, prospect in southwest corner of town of Forks.