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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Heddleston Occurrence (Mike Horse), Lewis and Clark County, Montana, USAi
Regional Level Types
Heddleston Occurrence (Mike Horse)Occurrence
Lewis and Clark CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
47° 1' 60'' North , 112° 22' 0'' West
Latitude & Longitude (decimal):
47.03333,-112.36667
GeoHash:
G#: c825e41j4
GRN:
N32W56
Type:
Occurrence
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Lincoln1,013 (2011)25.4km
Helena Valley Northwest3,482 (2011)41.0km
Helena Valley West Central7,883 (2011)47.3km
Helena Valley Northeast2,995 (2011)48.7km
Augusta309 (2011)51.1km
Mindat Locality ID:
162016
Long-form identifier:
mindat:1:2:162016:3
GUID (UUID V4):
0


REF:Deposit:: PARDEE, J. AND SCHRADER, F., 1933, METALLIC & NONMETALLIC DEPOSITS OF THE GREATER HELENA MINING REGION: USGS BULL. 84
Deposit:: 1967 DIREXPL ANACOND
Commodities (Major) - Copper, Molybdenum
Development Status: Occurrence

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


1 valid mineral.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘMolybdenite2.EA.30MoS2

List of minerals for each chemical element

SSulfur
Sⓘ MolybdeniteMoS2
MoMolybdenum
Moⓘ MolybdeniteMoS2

Other Databases

Link to USGS MRDS:10008406

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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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