Tags: Amethyst View |
Item N A Material Amethyst Type Purple Blue Magenta Tags: Amethyst View |
Item N A Material Amethyst Type Purple Blue Magenta one from our trees one far away Retard the sun with gentle mist Enchant the land with amethyst Tags: Amethyst View |
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Tags: Amethyst View |
Tags: Amethyst View |
Amethyst is a violet variety of quartz often used in jewelry. The name comes from the Ancient Greek ? a- ("not") and ???????? methustos ("intoxicated"), a reference to the belief that the stone protected its owner from drunkenness; the ancient Greeks (Ancient Greece) and Romans (Ancient Rome) wore amethyst and made drinking vessels of it in the belief that it would prevent intoxication (Alcohol intoxication).
Category: Mineral variety
Formula: Silica (silicon dioxide, Si (Silicon)O (Oxygen)2)
Habit: 6-sided prism ending in 6-sided pyramid (typical)
System: rhombohedral class 32
Twinning: Dauphine law, Brazil law, and Japan law
Cleavage: None
Fracture: Conchoidal
Mohs: 7-lower in impure varieties
Luster: Vitreous/glossy
Refractive: n? = 1.543-1.553 n? = 1.552-1.554
Opticalprop: Uniaxial (+) (Positive)
Birefringence: +0.009 (B-G interval)
Pleochroism: None
Streak: White
Gravity: 2.65 constant; variable in impure varieties
Melt: 1650�75 �C
Solubility: H2O insoluble
Diaphaneity: Transparent to translucent