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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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Talc from
Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA


03782700017702413277105.jpg
Talc, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
03782700017702413277105.jpg
Talc, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
00546040017702413281948.jpg
Talc, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
Locality type:Outcrop
Classification
Species:Talc
Formula:Mg3Si4O10(OH)2
Formation:Primary
Comments:Referred to in old literature, in masses inter-layered with fibrous sillimanite.
Habit:massive
Colour:creamy, yellow-white
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chrysoberyl5
Spessartine5
Quartz5
- var Smoky Quartz1
Albite4
Fahlunite2
Sillimanite2
Zircon1
Columbite-(Fe)1
Data
Mineral Data:Click here to view Talc data
Locality Data:Click here to view Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:660295
Long-form Identifier:1:3:660295:6
GUID (UUID V4):0
Nearest other occurrences of Talc
5.8km (3.6 miles) ⓘUltramafic rock bodies, Haddam, Middlesex County, Connecticut, USA
28.5km (17.7 miles) ⓘStony Creek Quarry (Norcross Granite Gneiss Rock Quarries; Castellucci Quarry), Branford, New Haven County, Connecticut, USA
28.8km (17.9 miles) ⓘCopper Valley Mine, Cheshire, New Haven County, Connecticut, USA
32.7km (20.3 miles) ⓘPlainville Trap Rock Quarry (Tilcon New Britain Quarry), Plainville, Hartford County, Connecticut, USA
35.0km (21.8 miles) ⓘCinque Quarry, East Haven, New Haven County, Connecticut, USA
40.7km (25.3 miles) ⓘIndian Soapstone Quarry, Bristol, Hartford County, Connecticut, USA
47.2km (29.3 miles) ⓘLambert Road serpentinite, Orange, New Haven County, Connecticut, USA
49.2km (30.6 miles) ⓘState Route 179 road cut (State Route 4 road cut Collinsville), Burlington, Hartford County, Connecticut, USA
50.4km (31.3 miles) ⓘBaldwin Quarry (Milford Quarry), Milford, New Haven County, Connecticut, USA
50.6km (31.4 miles) ⓘTariffville Gorge, Bloomfield, Hartford County, Connecticut, USA
References
Shepard, Charles Upham (1837) A Report on the Geological Survey of Connecticut. Geological Survey of Connecticut.
 
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