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Ballard Green Quartz Occurrence, Owings Mills, Baltimore Co., Maryland, USAi
Regional Level Types
Ballard Green Quartz OccurrenceDome (Lost)
Owings Mills- not defined -
Baltimore Co.County
MarylandState
USACountry

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Key
Latitude & Longitude (WGS84):
39° 23' 32'' North , 76° 48' 24'' West
Latitude & Longitude (decimal):
Locality type:
Dome (Lost) - last checked 2019
Deposit first discovered:
2014
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Randallstown32,430 (2011)3.0km
Owings Mills30,622 (2011)3.8km
Garrison8,823 (2011)4.3km
Milford Mill29,042 (2011)5.9km
Pikesville30,764 (2011)7.5km


During housing construction beginning in the spring and summer of 2014 "tens of thousands of quartz crystal specimens" where found.
"In the early spring of 2014, the removal of trees from the site uncovered huge quartz boulders bearing numerous milky quartz crystals. By late spring, construction crews had removed enough earth to level the entire area, piling the dirt into a mound about 30 yards long, 8 yards wide, and 5 yards high. From these mounds, collectors uncovered plates of quartz bearing multiple crystals measuring to well over an inch. Most of these crystals were milky, some of them clear. Encrustations of dried clay were present on many of the specimens. A different mode of collecting began to evolve around the Fourth of July.
Richard Hoff was there the day that Jim Hooper, President of the Baltimore Mineral Society, wandered a few yards south from the dirt mound and found a single doubly-terminated quartz crystal measuring about an inch and a half. It was embedded in a two foot embankment where a road would later be cut. Almost immediately, Hoff and the other collectors who were present began digging a short distance from the embankment and eventually found more crystals. They dubbed the hole that produced them as “the Hooper pocket.” From the Mineral Bliss article "A Major Quartz Crystal Find in Baltimore County,Maryland" Used with permission from Jake Slagle. Please see link for the full Mineral Bliss article by Jake Slagle.
The site is now covered with a housing development and is private property.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

'Feldspar Group'
Reference: Stuart Herring
Goethite
Formula: α-Fe3+O(OH)
Reference: Stuart Herring
Hematite
Formula: Fe2O3
Reference: Stuart Herring
'Mica Group'
Reference: Stuart Herring
Pyrite
Formula: FeS2
Reference: Stuart Herring
Quartz
Formula: SiO2
Reference: Stuart Herring
Quartz var: Amethyst
Formula: SiO2
Reference: Stuart Herring
Quartz var: Milky Quartz
Formula: SiO2
Reference: Stuart Herring
Quartz var: Rock Crystal
Formula: SiO2
Reference: Stuart Herring
Quartz var: Sceptre Quartz
Formula: SiO2
Reference: Stuart Herring
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Stuart Herring

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Milky Quartz4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
var: Sceptre Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Unclassified Minerals, Rocks, etc.
'Feldspar Group'-
'Mica Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Feldspar Group'-
'Mica Group'-
Quartz
var: Amethyst
-SiO2
var: Milky Quartz-SiO2
var: Rock Crystal-SiO2
var: Sceptre Quartz-SiO2
var: Smoky Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
OOxygen
O QuartzSiO2
O Quartz (var: Amethyst)SiO2
O Quartz (var: Smoky Quartz)SiO2
O Quartz (var: Rock Crystal)SiO2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O Quartz (var: Sceptre Quartz)SiO2
O Quartz (var: Milky Quartz)SiO2
SiSilicon
Si QuartzSiO2
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Smoky Quartz)SiO2
Si Quartz (var: Rock Crystal)SiO2
Si Quartz (var: Sceptre Quartz)SiO2
Si Quartz (var: Milky Quartz)SiO2
SSulfur
S PyriteFeS2
FeIron
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3

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Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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