Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Tremolite from
Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA


09502300017272020632247.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
08733510017272017781953.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
05424020017272017802288.jpg
Tremolite

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
08015410017272017827938.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
00131350017367307218454.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
06800690017367307214844.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
00923490017367307228929.jpg
Tremolite

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
08774010017367307225086.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
09502300017272020632247.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
08733510017272017781953.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
05424020017272017802288.jpg
Tremolite

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
08015410017272017827938.jpg
Tremolite, etc.

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
Locality type:Mine
Classification
Species:Tremolite
Formula:◻Ca2Mg5(Si8O22)(OH)2
Comments:Reported as a massive six inch vein four feet in length, gray-blue in color. Peter Zodac reported that Dr. Alonzo Quinn of Brown University confirmed the identification. Also reported to occur in small, radiating groups and flat gray-green crystals on magnetite.
Occurs in long grayish-white fibrous tufts in enstatite. As well as in fine and coarse grained aggregates
Habit:radiating acicular, massive
Colour:gray-green, gray-blue
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chondrodite16
Calcite13
Magnetite4
Sphalerite3
Antigorite2
Dolomite1
Brucite1
Clinochlore1
Data
Mineral Data:Click here to view Tremolite data
Locality Data:Click here to view Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
Photo GalleryView Gallery (8 photos)
Data Identifiers
Mindat Occurrence Record ID:699642
Long-form Identifier:1:3:699642:0
GUID (UUID V4):0
Nearest other occurrences of Tremolite
1.9km (1.2 miles) ⓘInterstate 84 road cuts, Town of Southeast, Putnam County, New York, USA
11.6km (7.2 miles) ⓘTuckahoe and Patterson Marble Company Quarry, Town of Patterson, Putnam County, New York, USA
12.1km (7.5 miles) ⓘKnapp's Quarry, Town of Patterson, Putnam County, New York, USA
15.8km (9.8 miles) ⓘDanburite type locality, Danbury, Fairfield County, Connecticut, USA
17.8km (11.1 miles) ⓘOld Quarry Nature Center, Danbury, Fairfield County, Connecticut, USA
19.2km (12.0 miles) ⓘAgstone Company Limestone Quarry, Danbury, Fairfield County, Connecticut, USA
21.0km (13.1 miles) ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
22.3km (13.9 miles) ⓘHustis Quarry, Town of Philipstown, Putnam County, New York, USA
22.9km (14.2 miles) ⓘShaft 7, Delaware Aqueduct, Town of Fishkill, Dutchess County, New York, USA
25.7km (16.0 miles) ⓘPhilipstown, Cold Spring, Town of Philipstown, Putnam County, New York, USA
References
(Januzzi, 1966) (Trainer, 1938, 1940) (Zodac, 1938) (Nightingale, 2001)
 
and/or  
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