$84.00
& FREE ShippingFire Quartz is excellent for transforming negative energies into positive ones, and bringing stability and balance to the mind and body. In the skull form, its properties are attuned to the human body, and thus is more easily attainable and efficient for use.
The Universal Crystal
Category:
Silicate Mineral
Chemical Formula:
SiO2
Crystal Class:
α-Quartz: Trapezohedral; β-Quartz: Trapezohedral (Class 6 2 2)
Crystal System:
α-Quartz: Trigonal; β-Quartz: Hexagonal
Dana Classification:
75.01.03.01 (Tectosilicates)
Name:
Quartz
Space Group:
α-Quartz: P3221 (no. 154), β-Quartz: P6222 (no. 180)
Strunz Classification:
4.DA.05 (Oxides)
Synonym:
Agate, Amethyst, Aventurine, Carnelian, Cat's Eye, Chalcedony, Chert, Chrysoprase, Citrine, Flint, Hornstone, Jasper, Moss Agate, Plasma, Prase, Rock Crystal, Rose Quartz, Sapphire Quartz, Smoky Quartz, Tigers Eye
Unit Cell:
a = 4.9133 Å, c = 5.4053 Å; Z=3
Birefringence: +0.009 (B-G interval)
Cleavage: {0110} Indistinct
Common Colors: Colorless, Various depending on inclusions
Crystal Habit: 6-Sided Prism, Hexagonal Terminations, Drusy, Massive, Microcrystalline
Diaphaneity: Transparent to Opaque
Formula Mass: 60.083 g·mol−1
Fracture: Conchoidal
Luster: Vitreous to dull
Melting Point: 1670 °C
Mohs Hardness: 7
Optical Properties: Uniaxial (+)
Pleochroism: None
Refractive Index: nω = 1.543–1.545, nε = 1.552–1.554
Specific Gravity: 2.65
Streak: White
Tenacity: Brittle