Where to Find Diopside
36 mapped diopside spots across 18 regions in 2 countries. Pick a region for its local guide, or browse every spot below. Diopside is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Every mapped diopside spot
Best spotCornwallLebanon County, PennsylvaniaPublic access · Actinolite, Andradite, Calcite +10
Best spotGassettsWindsor County, VermontPublic access · Quartz, Garnet, Tourmaline +7
Best spotLittle Sandy RiverElliott County, KentuckyPublic access · Apatite, Almandine Garnet, Chromite +3
Best spotLudlowWindsor County, VermontPublic access · Tourmaline, Pyrite, Talc +2
Best spotLoudon CountyLoudoun County, VirginiaPublic access · Calcite, Datolite, Epidote +6- Best spotItalian MountainGunnison County, ColoradoPublic access · Lapis Lazuli, Grossular Garnet, Diopside +2
- Best spotPrairie CreekPike County, ArkansasPublic access · Amethyst, Diopside, Epidote +2
Henry mining districtSevier County, UtahPublic access · Hematite, Limonite, Pyrolusite +13- San Francisco MountainsBeaver County, UtahPublic access · Diopside, Fluorite, Galena +12
- Clifton mining districtTooele County, UtahPublic access · Agate, Azurite, Dolomite +11
- Lake HarrisEssex County, New YorkPublic access · Albite, Amphibole, Apatite +10
Amasa ValleyMillard County, UtahCheck locally · Albite, Biotite, Diopside +9- Pitts Garnet MineAndroscoggin County, MainePublic access · Actinolite, Calcite, Diopside +9
- Iron MountainSaint Francois County, MissouriPublic access · Yellow Garnet, Apatite, Barite +8
- Ounce CreekDouglas County, WisconsinPublic access · Agate, Azurite, Bornite +7
- Rocky RangeBeaver County, UtahPublic access · Magnetite, Wulfenite, Azurite +7
- EastonNorthampton County, PennsylvaniaPublic access · Chert, Flint, Apatite +6
- Brant LakeWarren County, New YorkPublic access · Apatite, Calcite, Diopside +4
- EdenLamoille County, VermontPublic access · Asbestos, Vesuvianite, Serpentine +4
- SpartaSussex County, New JerseyPublic access · Chondrodite, Corundum, Ruby +3
- Steel MountainUnincorporated Newfoundland, Newfoundland and LabradorPermission required · Almandine, Garnet Group, Corundum +3
- White Road RoadcutArgenteuil, QuébecPermission required · Diopside, Fluorite, Titanite +3
- Autoroute 50 RoadcutArgenteuil, QuébecCheck locally · Garnet Group, Diopside, Titanite +2
- Black Rock SpringsSweetwater County, WyomingPublic access · Garnet, Ruby, Peridot +2
- Butcher Knife DrawSweetwater County, WyomingPublic access · Garnet, Ruby, Peridot +2
- Cement Creek Rd.Gunnison County, ColoradoPublic access · Albite, Ankerite, Chlorite +2
- Hunting HillMontgomery County, MarylandPublic access · Calcite, Diopside, Garnet +2
- KimmirutQikiqtaaluk Region, NunavutPermission required · Lapis Lazuli, Lazurite, Almandine +2
- Beluga Sapphire PropertyQikiqtaaluk Region, NunavutPermission required · Sapphire, Corundum, Scapolite +1
- Desmont MineHaliburton County, OntarioPermission required · Molybdenite, Diopside, Stillwellite +1
- House RangeMillard County, UtahPublic access · Diopside, Garnet, Idocrase +1
- Orford Nickel mineLe Val-Saint-François, QuébecPermission required · Green Garnet, Millerite, Diopside
- RichvilleSaint Lawrence County, New YorkPublic access · Moonstone, Diopside, Brown Tourmaline
- Rose RoadSaint Lawrence County, New YorkPublic access · Diopside, Calcite, Fluorapatite
- Turkey Mountain General AreaMorris County, New JerseyPublic access · Diopside, Marble, Serpentine
- Calvin Mitchell FarmSaint Lawrence County, New YorkPermission required · Diopside
Top regions for diopside
United States
29 spots · 14 regionsCanada
7 spots · 4 regionsDiopside rockhounding FAQ
Where is the best place to find diopside?+
Utah, New York, Vermont have the highest concentrations of diopside in this list. Quality and access vary by area, so open the linked region pages for a detailed view.
How many diopside rockhounding spots does RockHoundR track?+
36 mapped spots across 18 regions in 2 countries. The app keeps these on a map alongside your private finds.
Can I legally collect diopside on public land?+
In the U.S., casual hand collecting of common rocks and minerals like diopside is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Rules differ by country and region, so always check with the managing agency before a trip.
How do I identify diopside in the field?+
Field identification of diopside comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.
Hunt diopside on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
