Tumbled Teal Glass
Artificial Glass (Man-made silicious material) · Decorative Stone / Crafted Object
Crystal System
Amorphous (Non-crystalline)
Mineral Group
Man-made material (Glass / Vitreous substance)
Chemical Formula
SiO2 (amorphous silicon dioxide with fluxes like Na2O, CaO)
Formation Process
Industrial melting of silica sand with various metal oxides as colorants, followed by cooling and mechanical tumbling.
About This Crystal
The specimen is a tumbled, polished, smooth, pebble-shaped piece of deep teal-colored glass. It possesses high transparency, a vitreous luster, and is completely free of natural mineral inclusions, though it may contain characteristic tiny round gas bubbles.
Physical Characteristics
Color is a vibrant teal blue-green. Streak is white (or none due to hardness). No cleavage; exhibits perfect conchoidal fracture. Specific gravity is approximately 2.4 to 2.8. Tenacity is brittle. No natural fluorescence unless specific rare earth elements were added during manufacture.
Optical Properties
Singly refractive (isotropic). Refractive index is around 1.50 to 1.52. No birefringence, pleochroism, or natural optical phenomena.
Hardness & Durability
Origin Region
Manufactured globally; commonly tumbled in commercial facilities.
Hardness & Durability
Mohs hardness of about 5.5 to 6.0. Brittle and susceptible to scratching by harder minerals like quartz. Good for gentle jewelry use if protected.
Care & Maintenance
Clean with warm soapy water and a soft cloth. Avoid harsh chemicals, ultrasonic cleaners, and abrasive materials. Not sensitive to sunlight fading.
Rarity & Value
Common and inexpensive. Valued purely as a decorative item or pocket stone rather than a rare mineral specimen.
Special Characteristics
May contain tiny spherical air bubbles or subtle swirl lines visible under magnification, which are classic indicators of man-made glass.
Lore & History
While not a natural crystal, man-made tumbled glass is often used in modern metaphysical practices and meditation as a calming stone associated with the throat and heart chakras, though these are contemporary symbolic associations rather than traditional or scientific attributes.