OBSIDIAN GEMSTONE 3.35 CARATS AG 1713
- SKU
- Dimenzije (mm)
- x x mm
- Težina (cts)
- Boje
-
OBSIDIAN GEMSTONE
SOURCE ARMENIA BORDER RUSSIA
CUT IN CHINA
RECONSITUTED GLASS
SIZE11 X9X 6 MM
CARATS 3.35
Ref wikipedia
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock . It is produced when felsic lava extruded from a volcano cools without crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows , where the chemical composition (high silica content) induces a high viscosity and polymerization degree of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Because of the lack of crystal structure, obsidian blade edges can reach almost molecular thinness, leading to its ancient use as projectile points , and its modern use as surgical scalpel blades.[ 1]
- SKU
- Dimenzije (mm)
- x x mm
- Težina (cts)
- Boje
-
OBSIDIAN GEMSTONE
SOURCE ARMENIA BORDER RUSSIA
CUT IN CHINA
RECONSITUTED GLASS
SIZE11 X9X 6 MM
CARATS 3.35
Ref wikipedia
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock . It is produced when felsic lava extruded from a volcano cools without crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows , where the chemical composition (high silica content) induces a high viscosity and polymerization degree of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Because of the lack of crystal structure, obsidian blade edges can reach almost molecular thinness, leading to its ancient use as projectile points , and its modern use as surgical scalpel blades.[ 1]
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Thank-You to aaagems, My orders are sent promtly and I am pleased with the quality of my orders. Thanks again, Marie @GramsGems
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