28 NEW Y 
ORK 
STATE 
MUSEUM ‘ 
CORTLAND 
The Devonian rocks of this county do not include mineral 
-NO. LOCALITY 
Amenia — 
33 |Manhattan mine, Sharon Station 
Amenia mine, Amenia........ 
Beekman 
-33a/\Sylvan Lake mines, near Sylvan 
Dover 
34 
Dover Plains marble quarry 
35 
36 
East Fishkill 
Pecksville 
37 
38 |Fishkill iron mines East Fishkill. 
Northeast 
39 \near Smithfield 
eee e rors 
40 |Riga Mine, Mount Riga 
PG ae 
40a|Malby mine, 14 m. n.e. Millerton ... .| 
ee 
Deuel Hollow mine 2m. s.e. South Dover 
Dover mine, Dover Furnace station... 
Lake 
DELAWARE 
ie See Cortland 
DUTCHESS 
SPECIES DESCRIPTION 
himonite:, 2:02 sees toa eee ala eee 
WgwtKeoooopookljocooovega ec cbcooGop Mono ucdos 
| 
SIGETIGG: 4:2 socal Ss oe ate ene eae Oe ee 
chalecopyritesss| ocak usin ane oO eee 
limonites:..4%:2) Rk ee ines Oe eee 
dolomite...... MASSIVE sins oe Ree ele oa eee 
amphibolesss-|tremolitessa-. ree eee 
limonite .) 6268s |Ss2s Gite Eee 
staurolite..... smallicrystalssssn. eee 
garnet........ small red and brown crystals... .- 
graphite...... foliated and granular...........- 
Lie) oper arn See gray and white of uneven structure 
‘amphibole .\pale green actinolite and hydrous 
anthrophyllitessscmimncrie ieee 
pyroxene..... AUBILE RAs iain ene ee 
Him Gnite sais Seek chee aac aso te ae bo ome eee een 
(ave Neer ee ose bosbomcysccouc=msdoaneasccc? 
chalcopyrite. Ng et SCRA itan ty ir) Son GOO OLA. OOS 
Paleriarss se ese eshte lehene: Skete regetens, centage 
sphalerite.. Pa Oa arciG dine b.0.0 GE ood occ 
Limionite sees ee ras ears eee arene ee eee 
re ee 
