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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Clinochlore from
Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA


01786490017361189419424.jpg
Clinochlore, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
06729230017272021733849.jpg
Clinochlore, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
01086810017272021751909.jpg
Clinochlore

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03730760017272021761250.jpg
Clinochlore

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03011270017364435504991.jpg
Clinochlore, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
06237380017364435502071.jpg
Clinochlore, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
07947680017364435508165.jpg
Clinochlore

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
09573150017364435509905.jpg
Clinochlore

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
01786490017361189419424.jpg
Clinochlore, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
06729230017272021733849.jpg
Clinochlore, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
01086810017272021751909.jpg
Clinochlore

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03730760017272021761250.jpg
Clinochlore

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
Locality type:Quarry
Classification
Species:Clinochlore
Formula:Mg5Al(AlSi3O10)(OH)8
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Grossular10
Diopside3
Magnesite3
Calcite2
Talc2
Albite2
Data
Mineral Data:Click here to view Clinochlore data
Locality Data:Click here to view Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:46596
Long-form Identifier:1:3:46596:0
GUID (UUID V4):0
Nearest other occurrences of Clinochlore
24.8km (15.4 miles) ⓘLeesburg Quarry, Leesburg, Loudoun County, Virginia, USA
24.9km (15.5 miles) ⓘWaterworks tunnel, District of Columbia (Washington D.C.), USA
25.0km (15.6 miles) ⓘOld Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
29.1km (18.1 miles) ⓘWhite Quarry, Leesburg, Loudoun County, Virginia, USA
36.3km (22.6 miles) ⓘBull Run Quarry, Conklin, Loudoun County, Virginia, USA
49.5km (30.8 miles) ⓘWeir Mine, Holbrook, Baltimore County, Maryland, USA
50.0km (31.1 miles) ⓘHarris Mine, Holbrook, Baltimore County, Maryland, USA
50.2km (31.2 miles) ⓘChoate Mine, Owings Mills, Baltimore County, Maryland, USA
50.9km (31.6 miles) ⓘUnnamed Chromite prospect 13 [of Pearre & Heyl], Owings Mills, Baltimore County, Maryland, USA
52.7km (32.7 miles) ⓘDelight Quarry (Soldier's Delight Quarry; Dyer Quarry), Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA
References
Bernstein, Lawrence R. (1980) Minerals of the Washington, D.C. Area - Issue 5 of Educational series, Maryland Geological Survey. Department of Natural Resources, Maryland Geological Survey. p.1-148.
 
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