About this location
Centreville is a suburban community in Fairfax County, Virginia, home to Bull Run Regional Park. Amethyst-bearing quartz vugs are a real, documented feature of northern Virginia's Triassic diabase — but the confirmed localities sit in Loudoun and Fauquier counties, west of Centreville, where diabase sills intrude the red sandstone and shale of the Culpeper Basin. We found one general reference to a historic Fairfax County quarry near Centreville producing minerals, but no source confirmed amethyst specifically there. Centreville today is heavily developed suburbia; if a locality once existed nearby, it may no longer be accessible.
Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.
Found Here
- Amethyst: UNVERIFIED at Centreville specifically. Regionally, quartz and amethyst vugs occur in Triassic diabase contact zones in Loudoun and Fauquier counties, exposed in creek cuts and road cuts through the Bull Run Mountains — a nearby part of the same geologic basin, but not a confirmed Centreville find. A historic Fairfax County quarry near Centreville is reported to have produced actinolite, apophyllite, babingtonite, and chabazite — no amethyst mentioned.
Difficulty
Getting there
UNVERIFIED — no specific site or trailhead identified for amethyst near Centreville.
Collecting here
General-area inference only: where diabase/sandstone contact zones are exposed (creek cuts, road cuts), small (under an inch) amethyst-bearing vugs have been reported regionally in northern Virginia. Not confirmed for Centreville itself.
Know before you go
Land status is UNVERIFIED. Centreville is dense suburban development; most nearby land is private residential, commercial, or managed park land, not land managed for rock collecting. Bull Run Regional Park (Northern Virginia Regional Park Authority) is a developed recreation park, not a known collecting site. Any historic quarry near Centreville is very likely on private property today — get explicit permission before collecting anywhere in this area.
Location on Map
Coordinates: 38.82078, -77.46642
Nearby rockhounding locations
- Minnieville — Amethyst, QuartzVA · 13.3 mi
- Loudon County — Calcite, DatoliteVA · 18.3 mi
- Potomac River — Apatite, SpeculariteVA · 16.6 mi
- Bear Island — Apatite, EpidoteMD · 17.7 mi
- Warrenton — FossilVA · 19.2 mi
- USNM Locality No. 14252 — FossilVA · 18.7 mi
Frequently asked questions
Can you find amethyst in Centreville, Virginia?
We could not verify a specific amethyst locality in Centreville itself; documented northern Virginia amethyst sites are in nearby Loudoun and Fauquier counties.
What minerals have been found near Centreville, Virginia?
A historic Fairfax County quarry near Centreville reportedly produced actinolite, apophyllite, babingtonite, and chabazite, according to regional mineral locality records.
Is land near Centreville, Virginia open for rock collecting?
Land status is unverified, and much of the area is developed suburban land — confirm ownership and get permission before collecting anywhere near Centreville.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Sources
- https://en.wikipedia.org/wiki/Centreville,_Fairfax_County,_Virginia — general location and demographics, no geology.
- https://www.energy.virginia.gov/commercedocs/VAMIN_VOL33_NO01.PDF — Virginia mineral locality index referencing a Fairfax County quarry near Centreville (via search snippet).
- General regional context on Triassic diabase amethyst in Loudoun/Fauquier counties — not Centreville-specific, labeled as such.
Recommended Gear for Virginia
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Southeast Treasure Hunter's Gem & Mineral Guide
Whether you're digging for the first time or are an experienced rockhound or "prospector," with a simple rock hammer and...
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