Yugawaralite
Yugawaralite is a rare zeolite mineral typically found in colorless or white crystalline forms, valued mainly by collectors.
About
Yugawaralite
Yugawaralite is a hydrous calcium aluminum silicate mineral belonging to the zeolite group. It forms in low-temperature hydrothermal environments, often within volcanic rocks. The mineral is usually colorless, white, or pale pink and has a vitreous to pearly luster. Due to its softness and rarity, it is primarily collected as a mineral specimen rather than used in jewelry.
Physical & Chemical Properties
| Name | Yugawaralite |
|---|---|
| Scientific Name | Yugawaralite |
| Mineral Group | Zeolite (Silicate Mineral) |
| Hardness (Mohs) | 4 – 4.5 |
| Color | white, or pale pink |
| Origin | Japan (Yugawara – type locality) |
| Chemical Formula | CaAl₂Si₆O₁₆·4H₂O |
Quick Facts
| Crystal System | Monoclinic |
|---|---|
| Specific Gravity | 2.20 – 2.30 |
| Birthstone | Not a traditional |
| Refractive Index | 1.47 – 1.50 |
| Optical Character | Biaxial (+) |
| Dispersion | Low |
| Major Sources | Japan (Yugawara – type locality), Italy, USA, Iceland |
| Treatments | Usually untreated. Yugawaralite is generally found and kept in its natural form. |
| Price Range | $20 – $150 |
| Care Instructions | Handle with care. Avoid scratches, heat, and chemicals. Clean gently with a soft cloth and mild water only |