Phantom Quartz

A variety of Quartz

What is Phantom Quartz?

Optical Properties

Refractive Index: 1.544-1.553
Birefringence: 0.009
Pleochroism: Weakly dichroic
Optical Character: Biaxial positive
Dispersion: 0.013

Market Value Factors

Pricing varies for every rock and mineral, so use these universal factors to gauge Phantom Quartz before comparing listings or appraisals.

Size & Weight

Larger, intact specimens usually command higher prices.

Rarity & Demand

Scarce material or popular varieties sell at a premium.

Condition & Finish

Chips, repairs, and heavy wear lower value; clean prep helps.

Treatment & Provenance

Untreated specimens with documented locality are prized.

Applies to all rocks & minerals.

Where to Find Phantom Quartz

Phantom Quartz is a variety of Quartz. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find quartz in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.

See where to find quartz

Always check the local rules and get the landowner's permission before you collect.