Enhydro (Quartz)
A variety of Quartz
What is Enhydro (Quartz)?
Enhydro (Quartz) is usually a cloudy-white chalcedony or agate geode that has drops of fluid captured inside its cavities. This unusual characteristic gave the material its name — enhydros means containing water. These inclusions form interesting bubbles, which can sometimes move about, and attractive surface patterns that make them a prized stone.
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 Enhydro (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.
Where to Find Enhydro (Quartz)
Enhydro (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 quartzAlways check the local rules and get the landowner's permission before you collect.
Quick Facts
Physical Properties
- Color
- Colorless through various colors to black
- Streak
- White
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- O, Si
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Enhydro (Quartz) FAQs
How do I identify Enhydro (Quartz)?
Enhydro (Quartz) can be identified by its Colorless through various colors to black color. Look for these key characteristics when examining specimens.
What color is Enhydro (Quartz)?
Enhydro (Quartz) typically appears in Colorless through various colors to black. Color can vary depending on impurities and formation conditions.
