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


02387220017795156267172.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
01130850017362253431165.jpg
Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
06728640017272022088706.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03337190017362659937627.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
09655280017795141041347.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
01130850017362253431165.jpg
Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
00036340017362659952228.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03337190017362659937627.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
00249390017795816162389.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03452530017364111415366.jpg
Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
06728640017272022088706.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
03337190017362659937627.jpg
Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
Locality type:Quarry
Classification
Species:Diopside
Formula:CaMgSi2O6
Comments:ACTINOLITE.
ALBITE. (Reported by J. Griesbach, 1975).
ANTHOPHYLLITE. Creamy gray veinlets in serpentinite float.
ANTIGORITE. (G. T. Faust, 1967). Constitutes bulk of serpentinite as interlocking microscopic laths and plates or as tough, brittle, dark
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Grossular7
Calcite5
Clinozoisite5
Clinochlore3
Titanite2
Data
Mineral Data:Click here to view Diopside 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:36809
Long-form Identifier:1:3:36809:2
GUID (UUID V4):0
Nearest other occurrences of Diopside
25.0km (15.6 miles) ⓘOld Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
25.0km (15.6 miles) ⓘNew Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
36.3km (22.5 miles) ⓘFairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
41.2km (25.6 miles) ⓘFrost Quarry, Davis, Howard County, Maryland, USA
45.1km (28.0 miles) ⓘMarriottsville Quarry, Hernwood, Baltimore County, Maryland, USA
65.7km (40.8 miles) ⓘMartin Marietta Texas Quarry, Cockeysville, Baltimore County, Maryland, USA
80.2km (49.8 miles) ⓘTeeter Quarry, Cumberland Township, Adams County, Pennsylvania, USA
97.0km (60.3 miles) ⓘChurchville Quarry (Davis Quarry Company Inc.), Harford County, Maryland, USA
References
Jack Nelson, Compiler from two references and personal communications, May 2000 (See descriptive notes for quarry for reference citations)>
 
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