
Physical & Chemical Properties
| Name | Agate |
|---|---|
| Scientific Name | Agate (Variety of Chalcedony – Quartz) |
| Mineral Group | Quartz (Silicate Mineral) |
| Hardness (Mohs) | 6.5 – 7 |
| Color | Multicolored – white, gray, blue, red, brown, black, green, etc. |
| Origin | Brazil, Uruguay, India, Madagascar, USA, Mexico |
| Chemical Formula | SiO₂ |
| Crystal System | Trigonal (Microcrystalline) |
|---|---|
| Specific Gravity | 2.58 – 2.64 |
| Birthstone | Associated with May |
| Refractive Index | 1.53 – 1.54 |
| Optical Character | Aggregate (Cryptocrystalline) |
| Dispersion | Low |
| Major Sources | Brazil, Uruguay, India, Madagascar, USA, Mexico |
| Treatments | Often dyed or heat-treated to enhance color |
| Price Range | $2 – $50 |
| Care Instructions | Clean with mild soap and water. Avoid harsh chemicals. Store separately to prevent scratches. |
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