$120.00
& FREE ShippingThis behemoth matrix features crystals of Azurite, Malachite, Quartz, and an unidentified black crystal similar to Malawi Quartz. With so many intricate details of mineral growths overlapping one another, it's easy to spend hours examining every crevice. The item is shipped with extra careful packaging to ensure safe delivery.
Manipura
Anahata
Crystal Class:
Carbonates
Crystal System:
Monoclinic - Prismatic
Empirical Formula:
Cu2(CO3)(OH)2
Name:
Malachite
Common Colors: Green, Venusian Green, Olive Green
Mohs Hardness: 3.5 - 4
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