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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Apophyllite Group from
Vulcan Materials Company Crushed Stone Quarry (Manassas Quarry), Manassas, Prince William County, Virginia, USA


08704740017367142155590.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
00441790017272038326071.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
03796960017272038335242.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
07334590017272038347168.jpg
Apophyllite Group

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
01549940017362155171037.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
00441790017272038326071.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
03796960017272038335242.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
07334590017272038347168.jpg
Apophyllite Group

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
08704740017367142155590.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
03842560017272038371255.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
09268340017272038373224.jpg
Apophyllite Group, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
05401670017367143015478.jpg
Apophyllite Group

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
Locality type:Quarry
Classification
Species:'Apophyllite Group' (not an IMA approved species)
Formula:AB4[Si8O20]X · 8H2O
Colour:Clear
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Prehnite5
Stilbite Subgroup3
Calcite1
Feldspar Group1
Stilbite-Ca1
Data
Mineral Data:Click here to view Apophyllite Group data
Locality Data:Click here to view Vulcan Materials Company Crushed Stone Quarry (Manassas Quarry), Manassas, Prince William County, Virginia, USA
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:93058
Long-form Identifier:1:3:93058:9
GUID (UUID V4):0
Nearest other occurrences of Apophyllite Group
6.7km (4.2 miles) ⓘGainesville Quarry, Gainesville, Prince William County, Virginia, USA
11.5km (7.2 miles) ⓘCentreville, Culpeper Basin, Fairfax County, Virginia, USA
16.5km (10.3 miles) ⓘMillbrook Quarry (Haymarket Quarry), Haymarket, Prince William County, Virginia, USA
21.1km (13.1 miles) ⓘSanders Quarry, Casanova, Fauquier County, Virginia, USA
31.6km (19.7 miles) ⓘLuck Stone Quarry (Luckstone Quarry), Bealeton, Fauquier County, Virginia, USA
38.1km (23.7 miles) ⓘWhite Quarry, Leesburg, Loudoun County, Virginia, USA
64.3km (40.0 miles) ⓘCedar Mountain Stone Corp. Quarry (A. H. Smith quarry), Mitchell, Culpeper County, Virginia, USA
98.6km (61.2 miles) ⓘWoodberry Quarry, Woodberry, Baltimore City, Maryland, USA
References
Rocks & Min.: 60:168.
J. Wingard, personal observation
various added photos
 
and/or  
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