Hollowglass
Fantasy mineral · Uncommon · SiO₂ (hollow amorphous)
An amorphous silicate forming in volcanic environments exposed to persistent wind. Its hollow interior resonates with passing air currents, producing audible tones. Extremely fragile despite its appearance.
Identity
- Formula
- SiO₂ (hollow amorphous)
- Chemical class
- Silicate
Crystallography
- Crystal system
- Amorphous
- Habits
- Nodular, Tubular
Physical properties
- Mohs hardness
- 5
- Density
- 1.6 g/cm³
- Luster
- Vitreous
- Colors
- black, dark gray, smoky brown
- Streak
- gray
- Transparency
- Translucent, Opaque
Geology
- Origins
- Volcanic
- Geography
- high mountain vents, windy volcanic plateaus, Feywild storm peaks
Classification
- Rarity
- Uncommon
- Gem quality
- No
Arcane properties
- Affinity
- Air, Arcane
- Effects
- Scrying, Mind
- Planar origin
- Material Plane
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