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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Fluorapatite from
Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA


07081330017367468799182.jpg
Fluorapatite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
05015020017367468808742.jpg
Fluorapatite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
09633920017367468816426.jpg
Fluorapatite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
07994860017272024216496.jpg
Fluorapatite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
08703580017362778649473.jpg
Fluorapatite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
08650770017362895938474.jpg
Fluorapatite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
00534630017366623962694.jpg
Fluorapatite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
00978650017871463521164.jpg
Fluorapatite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
07081330017367468799182.jpg
Fluorapatite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
05015020017367468808742.jpg
Fluorapatite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
09633920017367468816426.jpg
Fluorapatite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
07994860017272024216496.jpg
Fluorapatite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
Locality type:Quarry
Classification
Species:Fluorapatite
Formula:Ca5(PO4)3F
Comments:Mostly massive and associated with almandine.
Colour:pale green to green-gray, yellow-green , dark blue
Luminescent properties:yellow
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz13
Almandine12
Albite7
Opal6
- var Opal-AN6
Meta-autunite4
Uraninite3
Microcline2
Muscovite2
Data
Mineral Data:Click here to view Fluorapatite data
Locality Data:Click here to view Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:37382
Long-form Identifier:1:3:37382:7
GUID (UUID V4):0
Nearest other occurrences of Fluorapatite
0.2km (0.1 miles) ⓘGotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
0.4km (0.2 miles) ⓘBordonaro Quarry, Portland, Middlesex County, Connecticut, USA
1.2km (0.7 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
1.4km (0.9 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.5km (0.9 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
1.5km (0.9 miles) ⓘCase Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
1.6km (1.0 miles) ⓘCase Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
2.3km (1.4 miles) ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.4km (1.5 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.5km (1.6 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
References
Moritz, Harold (n.d.) Personal Communication.
Barton and Goldsmith (1968)
Rocks & Minerals (1970) 45:443-449
 
and/or  
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