Item Description
An absolutely stunning aura-treated Quartz cluster with saturated blues and violet hues. Its snowcone-like appearance is refreshing to the eyes, and sparkles at every turn. This item also fits perfectly in corners which makes it easy to use as a book-end or add to home décor. It also makes a memorable and unique gift!
The item measures 4 inches from the back to the front, 3.55 inches from the sides, and stands at 3.8 inches tall.
Quartz
The Universal Crystal
Properties of Quartz
Physical Properties
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
Mineral Identification
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