Graveyard Point Agate Identification Guide
Identifying Graveyard Point plume agate from Oregon/Idaho by its blue-grey base and white-to-pink plumes, with tests versus other plume agates.
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What Graveyard Point Agate Looks Like
Graveyard Point agate is a prized plume agate from the Oregon–Idaho border region. It is a translucent chalcedony, typically with a clear to bluish-grey or smoky base, through which delicate, feathery plumes float in white, cream, pink, lavender, red, and black. The plumes are three-dimensional mineral growths (often iron and manganese oxides) suspended in the silica, giving a soft, botanical, almost underwater look. Luster is waxy to vitreous and the material takes a high polish, making the plumes appear to hover in depth.
Step-by-Step Field-ID Checklist
- Look for floating plumes. Three-dimensional, feathery or shrub-like plumes suspended in translucent chalcedony are the signature.
- Check the base color. A clear, bluish-grey, or smoky semi-transparent base is typical of Graveyard Point.
- Confirm translucency. Hold to light — good plume agate glows and the plumes show depth.
- Test hardness. Scratches glass (Mohs 6.5–7, chalcedony/quartz).
- Inspect fracture. Conchoidal, waxy break with no cleavage.
Key Diagnostic Tests
- Mohs hardness: 6.5–7; scratches glass and steel.
- Streak: White.
- Fracture: Conchoidal, waxy.
- Translucency: Semi-transparent to translucent base — important for plume visibility.
- No acid reaction; density ~2.6.
Common Look-Alikes and How to Tell Them Apart
- Other plume agates (Priday, Carey, Graveyard): All are plume agates and share chemistry; Graveyard Point is distinguished by its characteristic bluish/clear base with pink, lavender, and white plumes and known Oregon–Idaho provenance. Locality and color palette are the main separators among collectors.
- Moss agate: Moss agate has moss-like, often green dendritic inclusions concentrated near the base, while plume agate has fuller, three-dimensional plume structures throughout.
- Dendritic agate: Dendrites are flat, branching, fern-like manganese growths on a plane; plumes are rounded, bushy, and three-dimensional.
- Sagenite agate: Contains radiating needle-like crystal inclusions rather than soft feathery plumes.
- Dyed/assembled imitations: Uniform color in cracks or a glassy non-conchoidal base suggests treatment; natural plume agate shows organic, irregular plume forms.
Where Graveyard Point Agate Is Found
Graveyard Point agate comes from the Graveyard Point area along the Oregon–Idaho state line, near the Owyhee region (Malheur County, Oregon, and adjacent Idaho). It occurs in volcanic host rock as seams and nodules. The deposit is the namesake source, and most genuine material traces to claims in this district.
Frequently asked questions
What is Graveyard Point agate?
It is a plume agate from the Oregon–Idaho border (Owyhee region) featuring feathery white, pink, lavender, and red plumes suspended in a clear-to-bluish chalcedony base.
How can you tell if it's real Graveyard Point agate?
Look for three-dimensional floating plumes in a translucent bluish or clear base, a hardness of 6.5–7 that scratches glass, a waxy conchoidal fracture, and provenance from the Owyhee/Graveyard Point district.
Graveyard Point agate vs moss agate: what's the difference?
Moss agate has flat, moss-like green dendritic inclusions, while Graveyard Point is a plume agate with fuller, rounded, three-dimensional plumes in pink, white, and lavender.
What does Graveyard Point agate look like?
A translucent grey-blue to clear chalcedony with delicate, feathery plumes that appear to float in depth when polished.
Where is Graveyard Point agate found?
Along the Oregon–Idaho state line in the Owyhee region, near Graveyard Point in Malheur County, Oregon, and adjacent Idaho.