mineral
Amethyst Elestial Quartz
Silicon Dioxide with inclusions (SiO2)
Hardness: 7 Mohs; Color: Pale to deep purple and white; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture.
- Hardness
- 7 Mohs
- Color
- Pale to deep purple and white
- Luster
- Vitreous
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Physical properties
Hardness: 7 Mohs; Color: Pale to deep purple and white; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture.
Formation & geological history
Formed in hydrothermal veins or cavities (geodes) where silica-rich fluids crystallize. Elestial growth occurs when crystals grow rapidly under high-pressure conditions, often resulting in skeletal or stacked layers.
Uses & applications
Primarily used for metaphysical collecting, lapidary work, and crystal healing specimens. Smaller pieces are often used in jewelry or as pocket stones.
Geological facts
The purple color is caused by trace amounts of iron (Fe3+) that have been irradiated by natural gamma radiation from surrounding rock. Elestial Amethysts are also known as Jacare quartz due to their scale-like appearance.
Field identification & locations
Identified by its distinctive purple hue and the 'skeletal' or stepped crystal growth pattern. Common locations include Brazil, Uruguay, and Madagascar. Collectors look for clarity and deep color saturation.
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