Guidebook to field trips in southern Maine; 57th meeting, October 8-10, 1965, held at Bowdoin College: Trip 

Farnsworth, Roy L.

Perham, Frank

English

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University of New Hampshire University of New Hampshire Scholars' Repository NEIGC Trips New England Intercollegiate Geological Excursion Collection 1-1-1965 Nubble, Waisenen-Taminen, Harvard Mines Perham, Frank Farnsworth, Roy L. Follow this and additional works at: https://scholars.unh.edu/neigc_trips Recommended Citation Perham, Frank and Farnsworth, Roy L., "Nubble, Waisenen-Taminen, Harvard Mines" (1965). NEIGC Trips. 71. https://scholars.unh.edu/neigc_trips/71 This Text is brought to you for free and open access by the New England Intercollegiate Geological Excursion Collection at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in NEIGC Trips by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact nicole.hentz@unh.edu. TRIP CNUBBLE, WAISANEN-TAMINEN, HARVARD MINES9  •Leaders: Frank Perham, West Paris, Maine, andRoy L. Farnsworth, Bates College.INTRODUCTIONOxford County, Maine pegmatites appear in a great number of articles on the origins of pegmatites as well as an accounting of the rare mineralizations which occur in them. Pegmatite is a very common rock in this section of Maine and the countryside is scarred with quarries either being worked regularly, spasmodically, or a past operation. These quarries have been operated for recovery of feldspar, mica or beryl; many of these being hand cobbed operations.The purpose of the present field trip is to show some typical examples of the pegmatites of this region with an opportunity for some mineral collect­ing. The trip has been arranged to show within a relatively small area a simple pegmatite, to a more complicated one, and end with a considerably more complex one.The quarries are owned and operated by Stanley Perham. His son Frank has done the most recent work in these quarries and in so doing has carefully noted mineral relationships there. It is from his first hand experience and observations that we can gain a further insight into these pegmatites.Directions to Reach the AreaTake Route 201 through Topsham to junction with Route 196. Go left on 196 to Lewiston (city center). Go left on Route 11 (with others) and proceed to junction with Route 26 at Welchville. Follow Route 26 through Norway and South Paris to junction with Route 219 at Trapp Corner, West Paris (Maine Mineral Store on the left). Turn left onto Route 219 and proceed 8 m iles as per the sketch map (Figure 1) to the road to the quarries.Brief Historical Sketches of the MinesNubble:First operated for feldspar by Matti Waisanen about 1935. During39World War II it was worked for mica, producing some of the highest grade mica produced in New England; some pieces were up to 3 feet in diameter.Waisanen Mine:Also operated for feldspar about 1935 by the Oxford Mining and Milling Co. During 1943-1944 it was mined for mica by the Douglass Mining Co.Harvard Mine:Quarry opened for quartz crystals in 1800! s by Isaac Noyes of Norway 1917 Mineral rights obtained by Harvard Museum  1923-24 quarried for Harvard Mineralogical Department Also quarried in 1943 for mica40Mine explanationsNubble MineA simple Pegmatite, Geologic emplacement (interbanded biotite schist and calci-silicates). Muscovite rich - -  quartz core - -  traprock dikes. Late state emplacement fingering out of the pegmatite vertically  showing crystallization of minerals at apex.Waisanen and Tamminen MinesWaisanen: contacts - -  relation of mineralization of pegmatite toexplanation of mineralization around feldspar crystals  and vug formation Herderite and Bertrandite crystals.Tamminen: Example of secondary lithia stage. Quartz crystallization(tabular-pseudo cubic parallel growth, etc .)Lepidolite m ass with rare phosphates.Pollucite crystals, first identified in the United States.Harvard MineFamous multi-stage crystallized pegmatite Tourmaline stage Apatite stageQuartz pseudomorph stageEmplacement in schist with evident secondary soda spar zones with tourmaline and quartz crystal vugs. Recrystallization of primarymuscovite zone into green tourmaline Finish time collecting on the mine dump and enjoying the view41L o c k sM i l l sHicksPondM u d f  Pond / H a rv a rd  MineBryant PondRt. 26W aisanen  & T am in en  M in es\ Nubble Mine1 jone m i leSouth P a r i sF ig u re  1. L o ca t io n  o f  pegm at ite  m in e s ,  G r e e n w o o d  area ,  Maine- 4 2 -o*^e/dspati9 n « ' s sL im i t  o f  e x p o s u r e  1944R im  o f  e x ca v a t io n-  G e o l o g i c  con ta c tF ig u re  2. Sketch m a p  o f  the W aisanen  M ine ,  G r e e n w o o d ,  M aine .  (Adaptedf r o m  the U. S. G e o l o g i c a l  S u rv e y  P r o f e s s i o n a l  P a p e r  255)- 4 3 -75 O'^  .Vbq> *?\\\\)L im it  o f  e x p o s u r e  1943—̂ *- Pit l im it  1943-  G e o lo g i c  contact  a c cu ra te  ”  G e o lo g i c  con ta c t  approx .F ig u re  3. Sketch m ap o f  the H a rva rd  M ine ,  G ree n w o od ,  Maine .  (Adapted f r o mU. S. G e o l o g i c a l  Survey  P r o f e s s i o n a l  P a p er  255. )44

Nubble, Waisenen-Taminen, Harvard Mines

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Nubble, Waisenen-Taminen, Harvard Mines

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