Product Description
Check out this beautiful bulk lot of 1 kg of natural raw amethyst. The sizes of these raw amethyst stones are 5 grams to 30 grams. The clarity of rough-cut amethyst is SI to VS. These raw purple amethyst stones are untreated.
Key Features:
- Stone Name: Big Raw Amethyst | Rough Uncut Amethyst
- Total Weight: 1 kg | 1000 grams
- Sizes: 5 grams to 30 grams
- Color: Purple
- Treatment: No
- Origin: Brazil
What are the common features and internal structures found in rough amethyst?
Common features and internal structures found in rough amethyst include:
Crystal Structure
Amethyst belongs to the quartz group with a trigonal crystal system, commonly forming hexagonal prisms ending in pyramidal points. The crystals exhibit a tetrahedral framework where silicon atoms are bonded to oxygen atoms.
Color Zoning
Rough amethyst often shows purple color zoning ranging from light lavender to deep violet.
Inclusions
These contribute unique internal patterns and sometimes affect transparency and value of natural gemstones
Growth Patterns
Amethyst crystals grow inward from the walls of geodes or cavities, creating a radial, pointed crystal array.
Luster and Transparency
Rough amethyst typically exhibits a vitreous (glassy) luster with transparency ranging from transparent to translucent depending on impurities and inclusions. amethystsecrets
Physical Surface Features
The surface of rough amethyst may be smooth or textured with natural ridges, grooves, and terminations where the also have grow grown or fractured
These common features and internal structures make each specimen of rough amethyst unique and influence its use in gem cutting and jewelry
